{"id":170780,"date":"2026-07-31T13:51:29","date_gmt":"2026-07-31T13:51:29","guid":{"rendered":"https:\/\/pabau.com\/?p=170780"},"modified":"2026-08-17T11:40:17","modified_gmt":"2026-08-17T11:40:17","slug":"cpt-code-00906","status":"publish","type":"post","link":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/","title":{"rendered":"CPT code 00906: Anesthesia for vulvectomy, billing guide 2026"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"CPT code 00906: Anesthesia for vulvectomy, base units, and billing\",\"description\":\"CPT code 00906 covers anesthesia for vulvectomy and carries 4 base units. Learn the descriptor, reimbursement formula, modifiers, 2026 Medicare rates, ICD-10 pairings, and denial patterns.\",\"url\":\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00906\/\",\"audience\":{\"@type\":\"MedicalAudience\",\"audienceType\":\"Clinician\"},\"reviewedBy\":{\"@type\":\"Person\",\"name\":\"Dr Vanja Kitanova\",\"jobTitle\":\"Medical Reviewer\",\"affiliation\":{\"@type\":\"Organization\",\"name\":\"Pabau\"},\"knowsAbout\":[\"Medical Coding\",\"Clinical Documentation\",\"Healthcare Billing\",\"Clinical Safety\"],\"sameAs\":\"https:\/\/pabau.com\/blog\/author\/vanja\/\"},\"datePublished\":\"2026-07-29\",\"dateModified\":\"2026-08-03\"}<\/script>\n\n\n        <div id=\"key_takeaways\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/12\/Key-Takeaways-Icon.svg\" alt=\"Key takeaways\" height=\"42\" width=\"42\">\n                                <h3>Key takeaways<\/h3>\n            <\/div>\n            <div class=\"list\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>CPT code 00906 covers anesthesia for vulvectomy, not perineal procedures in general.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>The code carries 4 base units, against 5 for anorectal work under 00902 and 7 for a radical perineal procedure under 00904.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>Payment is total units multiplied by the payer&#8217;s conversion factor, so a 60-minute case bills 8 units.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>ICD-10 pairings come from the vulvar dysplasia and vulvar neoplasm families, including N90.0, D07.1, and C51.9.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>Practice management software like Pabau helps anesthesia teams capture times, validate modifiers, and submit cleaner 00906 claims.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\">CPT code 00906 covers anesthesia for vulvectomy. It carries 4 base units, and payment is total units multiplied by the payer&#8217;s conversion factor. It is a single-procedure code, not a catch-all for perineal surgery.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That one distinction causes more 00906 problems than anything else on the claim. &#8222;Anesthesia for Procedures on the Perineum&#8220; is the CPT subsection heading above codes 00902 to 00952. It is not the descriptor for 00906.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide covers the descriptor, base units, 2026 Medicare rates, modifiers, ICD-10 pairings, and documentation. It also covers the denial patterns that follow when the two get confused.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\">\n<div class=\"wp-block-embed__wrapper\">\n<iframe title=\"CPT Coding Pitfalls Every Medical Practice Faces\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/vbvV5okdXKg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">CPT code 00906: definition and clinical description<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CPT code 00906 describes anesthesia for a vulvectomy. The descriptor reads &#8222;Anesthesia for; vulvectomy&#8220;. It sits in the anesthesia section of the CPT code set, codes 00100 to 01999, published by the <a href=\"https:\/\/www.ama-assn.org\/practice-management\/cpt\/cpt-code-set-overview\" target=\"_blank\" rel=\"nofollow noopener\">American Medical Association (AMA)<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A vulvectomy removes part or all of the vulva. Surgeons perform it for vulvar dysplasia, carcinoma in situ, or invasive vulvar cancer. The anesthesia code follows the surgery, so the operative report decides whether 00906 is the right choice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The confusion around this code has a single source. 00906 sits under the subsection heading &#8222;Anesthesia for Procedures on the Perineum&#8220;, which spans 00902 through 00952. That heading names the family, not the code. Read as a descriptor, it turns a specific vulvectomy code into an apparent catch-all for anything done in the perineum.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Procedures covered under 00906<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Use 00906 when the surgery being anesthetized is a vulvectomy. In practice that covers the following resections:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Simple partial vulvectomy, meaning removal of less than 80% of the vulvar area<\/li><li>Simple complete vulvectomy, meaning removal of 80% or more of the vulvar area<\/li><li>Skinning vulvectomy performed for vulvar dysplasia or vulvar intraepithelial neoplasia<\/li><li>Vulvectomy performed for carcinoma in situ of the vulva<\/li><li>Vulvectomy performed as the surgical treatment for invasive vulvar carcinoma<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Radical resections need one extra check. A radical vulvectomy with inguinofemoral lymphadenectomy is a much larger operation than a simple partial vulvectomy. Confirm the extent of the resection in the operative report first.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Then check the American Society of Anesthesiologists (ASA) Crosswalk and your payer&#8217;s policy, because a radical perineal procedure can map to 00904 instead. Surgical add-on codes such as 15005 for wound bed preparation do not change that choice.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Procedures that belong under another code<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Anorectal surgery and vaginal surgery each have their own anesthesia code. Here is where the common mix-ups belong:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Hemorrhoidectomy, anal fistula repair, and perirectal abscess drainage:<\/strong> CPT 00902, anesthesia for anorectal procedures<\/li><li><strong>Radical perineal procedures:<\/strong> CPT 00904<\/li><li><strong>Perineal prostatectomy:<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00908\/\">CPT 00908<\/a><\/li><li><strong>Vaginal procedures, perineoplasty, and biopsy of the labia or vagina:<\/strong> CPT 00940<\/li><li><strong>Perianal condyloma removal:<\/strong> CPT 00902, as anorectal work<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Billing 00906 for a hemorrhoidectomy is the classic version of this error. The claim then describes anesthesia for a vulvectomy that never happened. The diagnosis code will not support it, and the denial is difficult to appeal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Not every gynecologic procedure produces an anesthesia claim at all. Office procedures done under local anesthetic.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Who can bill CPT code 00906?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Anesthesiologists, nurse anesthetists, and anesthesiologist assistants can all bill 00906. Which one bills it, and with which modifier, depends on the supervision arrangement in place during the case.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Anesthesiologists:<\/strong> May bill 00906 when personally performing the anesthesia service. Modifier AA shows the physician provided the service personally.<\/li><li><strong>Certified registered nurse anesthetists (CRNAs):<\/strong> May bill 00906 independently or under medical direction, depending on state scope-of-practice rules. The modifier varies with the arrangement, usually QZ or QX.<\/li><li><strong>Anesthesiologist assistants (AAs):<\/strong> May bill under the medical direction of a supervising anesthesiologist, using modifier QX.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Practices using software with HIPAA-aligned workflows can prompt for the supervision arrangement at the point of care. That is far more reliable than reconstructing it from the chart at billing time.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">CPT code 00906 base units<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CPT code 00906 carries <strong>4 base units<\/strong>. Medicare&#8217;s anesthesia base unit file sets that value, and the payer schedules built from it agree. Published state schedules list 00906 at 4 units, against 5 for 00902, 7 for 00904, and 6 for 00908.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Base units reflect the complexity, risk, and skill that a category of anesthesia demands. The number is fixed per code, so the only variable you control is accuracy. Assigning 00902 to a vulvectomy case claims one unit the record does not support. Assigning 00906 to a radical perineal procedure gives up three.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Component<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Value for CPT 00906<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Notes<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Base units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">4<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Fixed per code; set in the Medicare anesthesia base unit file<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Time units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Variable<\/td>\n<td style=\"padding:12px 16px;color:#374151\">One unit per 15 minutes of anesthesia time under the Medicare standard<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Qualifying circumstance units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Variable<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Added when applicable, such as emergency conditions or extreme age<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Conversion factor<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Set annually by CMS<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Varies by locality; verify the current year in the CMS fee schedule<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">You can confirm the current base unit value and the annual conversion factor through the <a href=\"https:\/\/www.cms.gov\/anesthesiologists-information-center\" target=\"_blank\" rel=\"nofollow noopener\">CMS Anesthesiologists Center<\/a>. Commercial payers may publish their own base unit files, so check the contract before you assume the Medicare value applies.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How anesthesia reimbursement is calculated for CPT code 00906<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Anesthesia payment does not work like surgical payment. Instead of one fee per service, the payer adds up units and multiplies by a conversion factor. According to the <a href=\"https:\/\/www.cms.gov\/medicare\/physician-fee-schedule\/search\/overview\" target=\"_blank\" rel=\"nofollow noopener\">CMS Physician Fee Schedule<\/a>, the Medicare formula is:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Payment = (base units + time units + qualifying circumstance units) x conversion factor<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here is a worked example for 00906. Assume a 60-minute vulvectomy, which is 4 time units at 15 minutes per unit, no qualifying circumstances, and the 2026 national Medicare conversion factor.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Variable<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Example value<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Calculation<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Base units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">4<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Fixed for CPT 00906<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Time units (60 min)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">4<\/td>\n<td style=\"padding:12px 16px;color:#374151\">60 minutes divided by 15 minutes per unit<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Qualifying circumstance units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">0<\/td>\n<td style=\"padding:12px 16px;color:#374151\">None applicable in this example<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Total units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">8<\/td>\n<td style=\"padding:12px 16px;color:#374151\">4 + 4 + 0<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Conversion factor<\/td>\n<td style=\"padding:12px 16px;color:#374151\">$20.4976 (2026 national)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Before GPCI adjustment for your locality<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Estimated payment<\/td>\n<td style=\"padding:12px 16px;color:#374151\">$163.98<\/td>\n<td style=\"padding:12px 16px;color:#374151\">8 x $20.4976, illustrative only<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Notice how much of the payment rides on time. Base units account for half the total in a one-hour case. Every 15 minutes of documented anesthesia time is worth a quarter of the base value. That is why start and stop times matter so much here.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Medicare reimbursement rates for CPT code 00906 in 2026<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CMS sets the anesthesia conversion factor each calendar year in the Physician Fee Schedule. For 2026 the national anesthesia conversion factor is $20.4976 per unit, or $20.5998 for qualifying alternative payment model participants. The 2025 figure was $20.3178, so year-over-year movement is under 1%.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Geographic Practice Cost Indices (GPCI) then adjust that rate by locality. The same 00906 claim pays more in Manhattan than in a rural Midwestern county. Medicare Administrative Contractors (MACs) process claims by region, and many publish a locality-specific anesthesia conversion factor you can check against.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Commercial payer rates for vulvectomy anesthesia<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Commercial payers negotiate their own conversion factors, and some sit well above Medicare. Others land at or below it. The per-unit dollar amount comes from the contract, so never assume Medicare-level payment on a commercial 00906 claim.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pull the current figure from each payer&#8217;s provider portal or fee schedule before you estimate. Comparing structures side by side helps.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Modifiers that apply to 00906<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Anesthesia claims carry modifiers that identify both the provider arrangement and the patient&#8217;s physical status. A 00906 claim uses two categories: provider and supervision modifiers, then physical status modifiers.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Provider and supervision modifiers<\/h3>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Modifier<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Description<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Who appends it<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">AA<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia service personally performed by an anesthesiologist<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Physician anesthesiologist<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">QZ<\/td>\n<td style=\"padding:12px 16px;color:#374151\">CRNA service without medical direction by a physician<\/td>\n<td style=\"padding:12px 16px;color:#374151\">CRNA billing independently<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">QK<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Medical direction of two to four concurrent anesthesia procedures<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Supervising anesthesiologist<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">QX<\/td>\n<td style=\"padding:12px 16px;color:#374151\">CRNA service under the medical direction of a physician<\/td>\n<td style=\"padding:12px 16px;color:#374151\">CRNA under a QK arrangement<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">QY<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Medical direction of one CRNA by an anesthesiologist<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesiologist directing one CRNA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h3 class=\"wp-block-heading\">Physical status modifiers (P1-P6)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The ASA physical status system records the patient&#8217;s health at the time of anesthesia. Some payers add units for the higher classifications, which raises payment to match the added risk.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Modifier<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Patient status<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:center;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Additional units (varies by payer)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">P1<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Normal healthy patient<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">0<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">P2<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Patient with mild systemic disease<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">0<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">P3<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Patient with severe systemic disease<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">1<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">P4<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Severe systemic disease that is a constant threat to life<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">2<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">P5<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Moribund patient not expected to survive without the operation<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">3<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">P6<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Brain-dead patient for organ donation<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">Not applicable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Medicare does not recognize additional units for physical status modifiers, but many commercial payers do. Check each payer&#8217;s policy before you include them in an estimate. Building the classification into your documentation standards keeps it in the record for the payers that pay for it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ICD-10 codes used with CPT code 00906<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A 00906 claim needs an ICD-10-CM diagnosis that supports medical necessity for a vulvectomy. The diagnosis describes the vulvar condition that made surgery necessary, not the anesthesia itself. In practice, that means the vulvar dysplasia and vulvar neoplasm families.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">ICD-10-CM code<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Description<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Common procedure context<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N90.0<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Mild vulvar dysplasia<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Skinning or simple partial vulvectomy for low-grade disease<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N90.1<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Moderate vulvar dysplasia<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Simple partial vulvectomy<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">N90.3<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dysplasia of vulva, unspecified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Used when the pathology grade is not documented<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">D07.1<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Carcinoma in situ of vulva<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Simple partial or complete vulvectomy<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">C51.0<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Malignant neoplasm of labium majus<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Vulvectomy for invasive carcinoma<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">C51.9<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Malignant neoplasm of vulva, unspecified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Vulvectomy where the site within the vulva is not specified<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Pair 00906 with the diagnosis that justified the surgery, and check it against the pathology or operative note. A hemorrhoid, fistula, or abscess code on a 00906 claim contradicts the code itself. For the diagnostic side of vulvar work.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vulvar dysplasia is often picked up during HPV follow-up in a sexual health practice. The diagnosis usually predates the surgical booking, so the pathology report is already in the chart.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Related anesthesia CPT codes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Four codes in the perineum subsection get confused with each other, and each carries a different base unit value. Choosing between them comes down to the anatomical site and the extent of the surgery.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">CPT code<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Description<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Base units<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">00902<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for anorectal procedure<\/td>\n<td style=\"padding:12px 16px;color:#374151\">5<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">00904<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for radical perineal procedure<\/td>\n<td style=\"padding:12px 16px;color:#374151\">7<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">00906<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for vulvectomy (this code)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">4<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">00908<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for perineal prostatectomy<\/td>\n<td style=\"padding:12px 16px;color:#374151\">6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">00906 is the lowest-valued code in the group, which is worth remembering in both directions. A radical perineal procedure billed as 00906 gives up 3 base units. Anorectal work billed as 00906 claims a unit the operative note cannot support.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vaginal procedures sit outside this group entirely, under CPT 00940. Obstetric anesthesia follows its own family. Full long descriptions are available through the <a href=\"https:\/\/www.aapc.com\/codes\/cpt-codes-range\/\" target=\"_blank\" rel=\"nofollow noopener\">AAPC Codify CPT lookup<\/a>.<\/p>\n\n\n        <div id=\"pro_tip\">\n            <div class=\"img\">\n                <svg width=\"42\" height=\"42\" viewBox=\"0 0 42 42\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                    <path fill-rule=\"evenodd\" clip-rule=\"evenodd\"\n                        d=\"M12.6383 19.5238C12.6632 21.2071 12.8734 22.9926 12.0685 24.5523C11.0341 26.8917 8.45076 28.169 7.56292 30.5918C6.63082 33.1061 7.19505 36.185 9.31371 37.9786C10.929 39.5678 13.4183 39.9873 15.6061 39.5463C17.4592 39.073 19.1049 37.8388 19.9706 36.1608C20.781 34.7141 20.7866 32.9904 20.5293 31.3985C20.1006 29.3092 18.3775 27.8705 16.9807 26.362C14.8814 24.1005 14.6684 20.6854 15.595 17.8915C16.4331 15.4768 19.0026 14.2344 20.0425 11.9461C20.7202 10.6769 20.7506 9.20327 20.6068 7.81304C20.1864 5.40098 18.3139 3.23631 15.8716 2.56674C13.9742 2.03969 11.8224 2.30052 10.1739 3.37614C8.70522 4.34688 7.5878 5.86618 7.28356 7.58178C6.76081 9.82981 7.53525 12.2822 9.20307 13.9118C10.7658 15.4741 12.4806 17.2273 12.6383 19.5238Z\"\n                        fill=\"#2BADD4\" \/>\n                    <path fill-rule=\"evenodd\" clip-rule=\"evenodd\"\n                        d=\"M22.7048 19.8387C22.6822 22.3279 24.4507 24.6234 26.7493 25.4682C28.0531 25.961 29.4725 25.9183 30.7989 25.5487C32.0575 24.9955 33.301 24.2237 34.0069 23.0092C34.8384 21.5811 35.2982 19.8286 34.7832 18.2094C34.3611 16.2507 32.8739 14.6541 31.0275 13.9426C28.6736 12.9595 25.8073 13.7942 24.1719 15.7001C23.2022 16.8366 22.6143 18.3326 22.7048 19.8387Z\"\n                        fill=\"#2BADD4\" \/>\n                <\/svg>\n            <\/div>\n            <div class=\"text\">\n                <h3>Pro Tip<\/h3>\n                <p>Audit your last 90 days of 00906 claims against the operative reports. Any claim where the surgery was a hemorrhoidectomy, a fistula repair, or an abscess drainage belongs under 00902. Any radical perineal resection probably belongs under 00904. Correcting the pattern yourself, before a payer finds it, protects both revenue and compliance standing.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 class=\"wp-block-heading\">Documentation requirements for billing CPT code 00906<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Anesthesia claims carry a heavier documentation load than most CPT codes. The record has to support every part of the formula: the procedure, the time, the physical status, and the provider arrangement. Anything missing becomes an exposure on a post-payment audit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A complete record for a 00906 claim includes the elements below.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Anesthesia start time and stop time, recorded to the minute<\/li><li>The operative description confirming a vulvectomy, and whether it was partial or complete<\/li><li>Physical status classification from P1 to P6, documented by the anesthesia provider<\/li><li>Identity and credentials of the provider, whether anesthesiologist, CRNA, or both<\/li><li>The supervision arrangement, documented whenever you bill QK, QX, or QY<\/li><li>An ICD-10 diagnosis supported by the pathology report or the surgeon&#8217;s note<\/li><li>A signed attestation from the anesthesia provider confirming the service<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cdn.pabau.com\/cdn\/attachments\/pulse\/content-engine\/billing_codes\/cpt-code-00906\/digital-forms.webp\" alt=\"Pabau digital form builder used to capture anesthesia record fields\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s digital forms can require anesthesia start time, stop time, and physical status before the record closes, so incomplete 00906 claims never reach billing.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:35px;width:800px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Vulvar oncology records hold sensitive clinical detail, so HIPAA Privacy and Security Rule standards apply across the whole documentation chain. Audits can also arrive years after the case. Check your state&#8217;s medical record retention rules and keep these files retrievable.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common billing errors with CPT code 00906 and how to avoid them<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Anesthesia claims get denied more often than most because they combine time-based documentation, provider modifiers, and payer-specific formulas. For 00906, the errors below account for most of the avoidable denials.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Billing error<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Root cause<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Corrective action<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">00906 used for any perineal case<\/td>\n<td style=\"padding:12px 16px;color:#374151\">The CPT subsection heading read as if it were the code descriptor<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Reserve 00906 for vulvectomy; route anorectal work to 00902 and vaginal work to 00940<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Downcoding a radical resection<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Radical perineal procedure billed as 00906 rather than 00904<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Read the operative report for the extent of resection before choosing the code<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Missing or wrong modifier<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Provider arrangement not identified on the claim<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Confirm the supervision arrangement first, then apply AA, QZ, QK, QX, or QY<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Inaccurate time units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Start and stop times missing from the anesthesia record<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Capture both times at the point of care and calculate units in 15-minute blocks<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Physical status units on a Medicare claim<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Commercial payer rules applied to Medicare<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Medicare pays no extra units for P modifiers, so leave them out of the calculation<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Mismatched diagnosis<\/td>\n<td style=\"padding:12px 16px;color:#374151\">ICD-10 code does not support a vulvectomy<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Use a vulvar dysplasia or vulvar neoplasm code taken from the pathology report<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Practices that work from standardized medical forms capture times and modifiers during the case rather than from memory afterward. Recording the detail while the case is live is one of the most reliable ways to lower anesthesia denial rates.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Related CPT codes<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00731\/\">CPT code 00731 \u2014 Anesthesia billing for upper GI endoscopy<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00910\/\">CPT code 00910 \u2014 Anesthesia for transurethral procedures<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00912\/\">CPT Code 00912 \u2014 Anesthesia for transurethral procedures<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How Pabau supports anesthesia billing for vulvectomy claims<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Most 00906 problems start where the clinical record and the billing system stop talking to each other. Times go unrecorded. Modifiers get picked by hand with nothing checking them against the documented arrangement. Diagnosis codes get chosen from memory instead of the pathology report.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practice management software like Pabau keeps those steps in one record. Its <a href=\"https:\/\/pabau.com\/features\/claims-management-software\/\">claims management software<\/a> connects the clinical documentation to the claim, so the details travel together instead of being re-keyed. Four things matter most for teams billing 00906.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cdn.pabau.com\/cdn\/attachments\/pulse\/content-engine\/billing_codes\/cpt-code-00906\/fully-integrated-with-pabau-billing.webp\" alt=\"Pabau claims management screen showing an integrated billing workflow\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s claims management sends the claim straight from the case record, so the anesthesia times and modifiers travel with it.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:35px;width:800px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Structured documentation capture:<\/strong> Digital forms can require start time, stop time, and physical status before the record closes, so incomplete cases never reach billing.<\/li><li><strong>Modifier validation:<\/strong> Claim rules can flag a claim where the anesthesia modifier is missing or conflicts with the documented provider role.<\/li><li><strong>Diagnosis code entry at case level:<\/strong> Billers can cross-check the pathology report and pick the right vulvar code, such as D07.1 or C51.9, before submission.<\/li><li><strong>Audit trail:<\/strong> Every edit is timestamped and attributed, so you can answer a post-payment records request without guesswork.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Gynecology and pelvic health practices that bill their own anesthesia get the most out of this. With EHR integration, the case record, the anesthesia documentation, and the claim live in one system rather than three. That leaves your billers checking claims instead of chasing paperwork.<\/p>\n\n\n        <div id=\"book_a_demo\">\n            <div class=\"left-side\">\n                <div class=\"logo\">\n                    <img decoding=\"async\"\n                        src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Logo.svg\"\n                        alt=\"Logo\"\n                        loading=\"lazy\"\n                    \/>\n                <\/div>\n\n                <h3 class=\"heading\">\n                    Submit cleaner anesthesia claims first time                <\/h3>\n\n                <p class=\"description\">\n                    Pabau&#8217;s claims management software captures anesthesia times, physical status, and modifiers in the case record, then carries them into the claim. Your billing team spends less time reworking 00906 denials.                <\/p>\n\n                <div class=\"button-group\">\n                    <a href=\"\/book-demo\/\" class=\"btn btn-scale-effect btn-cta-color btn-md\">\n                        <span class=\"btn-text\">Book a demo<\/span>\n                        <div class=\"btn-icon btn-icon-right\" aria-hidden=\"true\">\n                            <svg\n                                width=\"14\"\n                                height=\"12\"\n                                viewBox=\"0 0 14 12\"\n                                fill=\"none\"\n                                xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                            >\n                                <path\n                                    d=\"M0.75 4.77295C0.335786 4.77295 0 5.10874 0 5.52295C0 5.93716 0.335786 6.27295 0.75 6.27295V5.52295V4.77295ZM13.2803 6.05328C13.5732 5.76039 13.5732 5.28551 13.2803 4.99262L8.50736 0.219648C8.21447 -0.073245 7.73959 -0.073245 7.4467 0.219648C7.15381 0.512542 7.15381 0.987415 7.4467 1.28031L11.6893 5.52295L7.4467 9.76559C7.15381 10.0585 7.15381 10.5334 7.4467 10.8263C7.73959 11.1191 8.21447 11.1191 8.50736 10.8263L13.2803 6.05328ZM0.75 5.52295V6.27295L12.75 6.27295V5.52295V4.77295L0.75 4.77295V5.52295Z\"\n                                    fill=\"currentColor\"\n                                ><\/path>\n                            <\/svg>\n                        <\/div>\n                    <\/a>\n                <\/div>\n            <\/div>\n\n            <div class=\"right-side\">\n                <img decoding=\"async\"\n                    src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Home-Page-Concept-4.webp\"\n                    alt=\"Pabau practice management dashboard\"\n                    loading=\"lazy\"\n                \/>\n            <\/div>\n        <\/div>\n        \n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The arithmetic behind 00906 is the easy part. What takes discipline is resisting the pull of the subsection heading above it. Treat the code as anesthesia for vulvectomy, exactly as the descriptor reads, and most of the denial risk disappears before you calculate a single unit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">From there, three habits carry the money. Read the operative report to confirm the resection and its extent. Record start and stop times to the minute, because time is half the payment on a one-hour case. Take the diagnosis from the pathology report rather than from memory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Put those checks in the workflow instead of leaving them to whoever codes that day. Pabau gives anesthesia teams one place to capture the required fields, validate modifiers, and submit cleaner claims. <a href=\"https:\/\/pabau.com\/book-demo\/\">Book a demo<\/a> to see how Pabau handles anesthesia billing end to end.<\/p>\n\n\n        <div id=\"expert_picks\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/11\/Expert-Picks.svg\" alt=\"Continue your research\" height=\"42\" width=\"42\">\n                                <h3>Continue your research<\/h3>\n            <\/div>\n            <div class=\"content\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Coding the gynecologic case next door?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00944\/\">CPT code 00944<\/a> covers anesthesia for a vaginal hysterectomy, with its own base units and time rules.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Need the diagnostic step before surgery?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-56605\/\">CPT code 56605<\/a> covers biopsy of the vulva or perineum for a single lesion.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Billing a radical resection with lymphadenectomy?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00934\/\">CPT code 00934<\/a> shows how anesthesia for a radical penectomy is coded and documented.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Working on an obstetric anesthesia claim?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-01965\/\">CPT code 01965<\/a> sets out the anesthesia code for an incomplete or missed abortion procedure.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Coding the hysterectomy itself?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-58150\/\">CPT code 58150<\/a> explains total abdominal hysterectomy billing, including the documentation payers expect.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<h2 class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1785497471248\"><h3 class=\"schema-faq-question\">What is CPT code 00906 used for?<\/h3> <p class=\"schema-faq-answer\">CPT code 00906 is the anesthesia code for a vulvectomy. Its CPT descriptor reads &#8218;Anesthesia for; vulvectomy&#8216;, so it covers anesthesia for partial, complete, and skinning vulvectomy. It is not a general code for perineal surgery. Anorectal cases belong under 00902 and vaginal cases under 00940.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497471249\"><h3 class=\"schema-faq-question\">How many base units does CPT code 00906 have?<\/h3> <p class=\"schema-faq-answer\">CPT code 00906 carries 4 base units. Medicare&#8217;s anesthesia base unit file sets that value, and payer schedules built from that file agree. Total billable units are the 4 base units plus the time units accrued during the case. A 60-minute case therefore bills 8 units.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497471250\"><h3 class=\"schema-faq-question\">Does CPT code 00906 cover all anesthesia for perineal procedures?<\/h3> <p class=\"schema-faq-answer\">No. &#8218;Anesthesia for Procedures on the Perineum&#8216; is the CPT subsection heading above codes 00902 to 00952, not the descriptor for 00906. Within that subsection, 00902 covers anorectal procedures, 00904 covers radical perineal procedures, 00906 covers vulvectomy, and 00908 covers perineal prostatectomy.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497471251\"><h3 class=\"schema-faq-question\">What modifiers apply to CPT code 00906?<\/h3> <p class=\"schema-faq-answer\">A 00906 claim needs a provider or supervision modifier, and often a physical status modifier. Use AA when an anesthesiologist personally performs the service, and QZ for a CRNA working without medical direction. Use QK for medical direction of two to four concurrent cases, QX for a CRNA under medical direction, and QY for direction of one CRNA. Physical status modifiers P1 to P6 record the patient&#8217;s health and may add units for commercial payers.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497471252\"><h3 class=\"schema-faq-question\">How is anesthesia reimbursement calculated for CPT 00906?<\/h3> <p class=\"schema-faq-answer\">Payment equals base units plus time units plus qualifying circumstance units, multiplied by the payer&#8217;s conversion factor. For Medicare, time units are counted at one unit per 15 minutes of anesthesia time. The 2026 national anesthesia conversion factor is $20.4976 per unit before locality adjustment. So a 60-minute 00906 case works out at roughly $163.98.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497471253\"><h3 class=\"schema-faq-question\">What is the difference between anesthesia modifier AA and QZ?<\/h3> <p class=\"schema-faq-answer\">Modifier AA shows that a physician anesthesiologist personally performed the service from induction to emergence. Modifier QZ shows that a CRNA performed it without medical direction from a physician. Medicare pays both at 100% of the fee schedule amount. A state&#8217;s opt-out status affects supervision requirements, not the payment rate.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497471254\"><h3 class=\"schema-faq-question\">Can a CRNA bill CPT code 00906?<\/h3> <p class=\"schema-faq-answer\">Yes. A CRNA can bill 00906, subject to state scope-of-practice rules and the supervision arrangement in place. Billing independently without medical direction takes modifier QZ. Billing under the medical direction of an anesthesiologist takes modifier QX. The modifier has to match the arrangement documented in the record.<\/p> <\/div> <\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>CPT code 00906 covers anesthesia for vulvectomy. It carries 4 base units, and payment is total units multiplied by the payer&#8217;s conversion factor. It is a single-procedure code, not a catch-all for perineal surgery. That one distinction causes more 00906 problems than anything else on the claim. &#8222;Anesthesia for Procedures on the Perineum&#8220; is the [&hellip;]<\/p>\n","protected":false},"author":81,"featured_media":170779,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"","_yoast_wpseo_content_score":"90","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[1433,1546],"tags":[4162,1163],"class_list":["post-170780","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-billing-codes","category-cpt-codes","tag-anesthesia-billing","tag-medical-billing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>CPT code 00906: Anesthesia for vulvectomy, billing guide 2026<\/title>\n<meta name=\"description\" content=\"CPT code 00906 covers anesthesia for vulvectomy, with 4 base units. Get the descriptor, 2026 Medicare rates, modifiers, and ICD-10 pairings.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CPT code 00906: Anesthesia for vulvectomy, billing guide 2026\" \/>\n<meta property=\"og:description\" content=\"CPT code 00906 covers anesthesia for vulvectomy, with 4 base units. Get the descriptor, 2026 Medicare rates, modifiers, and ICD-10 pairings.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/\" \/>\n<meta property=\"og:site_name\" content=\"Pabau\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Pabau\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-31T13:51:29+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-17T11:40:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/07\/cpt-code-00906.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Aleksandar Kochovski\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@pabaucrm\" \/>\n<meta name=\"twitter:site\" content=\"@pabaucrm\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Aleksandar Kochovski\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\u00a0Minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/\"},\"author\":{\"name\":\"Aleksandar Kochovski\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/#\\\/schema\\\/person\\\/73b672a49e20bfba8161e3c17ee3dda2\"},\"headline\":\"CPT code 00906: Anesthesia for vulvectomy, billing guide 2026\",\"datePublished\":\"2026-07-31T13:51:29+00:00\",\"dateModified\":\"2026-08-17T11:40:17+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/\"},\"wordCount\":2902,\"publisher\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/cpt-code-00906.webp\",\"keywords\":[\"Anesthesia Billing\",\"Medical Billing\"],\"articleSection\":[\"Billing Codes\",\"CPT Codes\"],\"inLanguage\":\"de\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/\",\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/\",\"name\":\"CPT code 00906: Anesthesia for vulvectomy, billing guide 2026\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/cpt-code-00906.webp\",\"datePublished\":\"2026-07-31T13:51:29+00:00\",\"dateModified\":\"2026-08-17T11:40:17+00:00\",\"description\":\"CPT code 00906 covers anesthesia for vulvectomy, with 4 base units. 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Anorectal cases belong under 00902 and vaginal cases under 00940.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#faq-question-1785497471249\",\"position\":2,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#faq-question-1785497471249\",\"name\":\"How many base units does CPT code 00906 have?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"CPT code 00906 carries 4 base units. Medicare's anesthesia base unit file sets that value, and payer schedules built from that file agree. Total billable units are the 4 base units plus the time units accrued during the case. A 60-minute case therefore bills 8 units.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#faq-question-1785497471250\",\"position\":3,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#faq-question-1785497471250\",\"name\":\"Does CPT code 00906 cover all anesthesia for perineal procedures?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. 'Anesthesia for Procedures on the Perineum' is the CPT subsection heading above codes 00902 to 00952, not the descriptor for 00906. 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Physical status modifiers P1 to P6 record the patient's health and may add units for commercial payers.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#faq-question-1785497471252\",\"position\":5,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#faq-question-1785497471252\",\"name\":\"How is anesthesia reimbursement calculated for CPT 00906?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Payment equals base units plus time units plus qualifying circumstance units, multiplied by the payer's conversion factor. For Medicare, time units are counted at one unit per 15 minutes of anesthesia time. The 2026 national anesthesia conversion factor is $20.4976 per unit before locality adjustment. 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A state's opt-out status affects supervision requirements, not the payment rate.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#faq-question-1785497471254\",\"position\":7,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-00906\\\/#faq-question-1785497471254\",\"name\":\"Can a CRNA bill CPT code 00906?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. A CRNA can bill 00906, subject to state scope-of-practice rules and the supervision arrangement in place. Billing independently without medical direction takes modifier QZ. Billing under the medical direction of an anesthesiologist takes modifier QX. 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He specializes in topics around compliance in software solutions. When he's not writing at Pabau, you can find him tending to his bonsai collection or hitting the gym.","url":"https:\/\/pabau.com\/de\/blog\/author\/aleksandar-kochovski\/"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471248","position":1,"url":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471248","name":"What is CPT code 00906 used for?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"CPT code 00906 is the anesthesia code for a vulvectomy. Its CPT descriptor reads 'Anesthesia for; vulvectomy', so it covers anesthesia for partial, complete, and skinning vulvectomy. It is not a general code for perineal surgery. Anorectal cases belong under 00902 and vaginal cases under 00940.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471249","position":2,"url":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471249","name":"How many base units does CPT code 00906 have?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"CPT code 00906 carries 4 base units. Medicare's anesthesia base unit file sets that value, and payer schedules built from that file agree. Total billable units are the 4 base units plus the time units accrued during the case. A 60-minute case therefore bills 8 units.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471250","position":3,"url":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471250","name":"Does CPT code 00906 cover all anesthesia for perineal procedures?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. 'Anesthesia for Procedures on the Perineum' is the CPT subsection heading above codes 00902 to 00952, not the descriptor for 00906. Within that subsection, 00902 covers anorectal procedures, 00904 covers radical perineal procedures, 00906 covers vulvectomy, and 00908 covers perineal prostatectomy.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471251","position":4,"url":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471251","name":"What modifiers apply to CPT code 00906?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A 00906 claim needs a provider or supervision modifier, and often a physical status modifier. Use AA when an anesthesiologist personally performs the service, and QZ for a CRNA working without medical direction. Use QK for medical direction of two to four concurrent cases, QX for a CRNA under medical direction, and QY for direction of one CRNA. Physical status modifiers P1 to P6 record the patient's health and may add units for commercial payers.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471252","position":5,"url":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471252","name":"How is anesthesia reimbursement calculated for CPT 00906?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Payment equals base units plus time units plus qualifying circumstance units, multiplied by the payer's conversion factor. For Medicare, time units are counted at one unit per 15 minutes of anesthesia time. The 2026 national anesthesia conversion factor is $20.4976 per unit before locality adjustment. So a 60-minute 00906 case works out at roughly $163.98.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471253","position":6,"url":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471253","name":"What is the difference between anesthesia modifier AA and QZ?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Modifier AA shows that a physician anesthesiologist personally performed the service from induction to emergence. Modifier QZ shows that a CRNA performed it without medical direction from a physician. Medicare pays both at 100% of the fee schedule amount. A state's opt-out status affects supervision requirements, not the payment rate.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471254","position":7,"url":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-00906\/#faq-question-1785497471254","name":"Can a CRNA bill CPT code 00906?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. A CRNA can bill 00906, subject to state scope-of-practice rules and the supervision arrangement in place. Billing independently without medical direction takes modifier QZ. Billing under the medical direction of an anesthesiologist takes modifier QX. The modifier has to match the arrangement documented in the record.","inLanguage":"de"},"inLanguage":"de"}]}},"yoast":{"focus_keyword":"CPT code 00906","seo_title":"CPT code 00906: Anesthesia for vulvectomy, billing guide 2026","meta_description":"CPT code 00906 covers anesthesia for vulvectomy, with 4 base units. Get the descriptor, 2026 Medicare rates, modifiers, and ICD-10 pairings.","content_score":"90","is_cornerstone":"","related_keyphrases":[{"keyword":"anesthesia base units","score":61},{"keyword":"anesthesia modifiers billing","score":61},{"keyword":"Medicare anesthesia reimbursement","score":61}]},"_links":{"self":[{"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/posts\/170780","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/users\/81"}],"replies":[{"embeddable":true,"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/comments?post=170780"}],"version-history":[{"count":5,"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/posts\/170780\/revisions"}],"predecessor-version":[{"id":181719,"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/posts\/170780\/revisions\/181719"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/media\/170779"}],"wp:attachment":[{"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/media?parent=170780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/categories?post=170780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pabau.com\/de\/wp-json\/wp\/v2\/tags?post=170780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}