{"id":163328,"date":"2026-07-27T11:53:28","date_gmt":"2026-07-27T11:53:28","guid":{"rendered":"https:\/\/pabau.com\/?p=163328"},"modified":"2026-08-17T12:32:47","modified_gmt":"2026-08-17T12:32:47","slug":"cpt-code-00174","status":"publish","type":"post","link":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/","title":{"rendered":"CPT Code 00174: Anesthesia for intraoral procedures"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"CPT Code 00174: Anesthesia for intraoral procedures\",\"description\":\"CPT Code 00174 covers anesthesia for intraoral procedures, including biopsy; excision of retropharyngeal tumor. Learn base units, billing formula, modifiers, and documentation requirements.\",\"url\":\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00174\/\",\"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\":\"2026-07-24\",\"dateModified\":\"2026-07-24\"}<\/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 00174 describes anesthesia for intraoral procedures, including biopsy; excision of retropharyngeal tumor, classified under the CPT head anesthesia section (00100-00222).<\/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 6 base units; total reimbursement is calculated using: (base units + time units + modifying units) x conversion factor.<\/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>Common billing errors include omitting the QS modifier for MAC cases and misapplying CRNA supervision modifiers (QX, QY, QZ, QK) without confirming the medical direction ratio.<\/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>Pabau&#8217;s claims management software supports accurate CPT code submission with procedure code libraries and digital documentation workflows that reduce claim errors.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\"><strong>CPT Code 00174<\/strong> is the anesthesia code for intraoral procedures, including biopsy or excision of a retropharyngeal tumor, billed within the CPT Head Anesthesia section (00100-00222). It carries 6 base units and is frequently confused with the adjacent not-otherwise-specified code, CPT 00170.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This reference guide covers the official descriptor for CPT Code 00174, its 6 base units, the anesthesia billing formula with a worked example, applicable modifiers, qualifying circumstances, ICD-10 crosswalk codes, and documentation requirements for clean claim submission.<\/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\"><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><\/figure>\n\n\n\n<h2 id=\"h-cpt-code-00174-description-and-classification\" class=\"wp-block-heading\">CPT Code 00174: Description and classification<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>CPT Code 00174<\/strong> is the correct procedure code for anesthesia services provided during intraoral surgical procedures, including biopsy; excision of retropharyngeal tumor. It sits within the CPT Anesthesia section, under the subsection covering procedures on the head (codes 00100-00222), as maintained 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>, the authoritative body for CPT code definitions.<\/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\">Field<\/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\">Detail<\/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\">CPT Code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">00174<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Short Descriptor<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for intraoral procedures, including biopsy; excision of retropharyngeal tumor<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">CPT Section<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia &gt; Head (00100-00222)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Base Units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">6<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Typical Providers<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesiologists, CRNAs (Certified Registered Nurse Anesthetists)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Code Status<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Active (verify against current year CPT code book)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">The code covers anesthesia services for intraoral surgical procedures where a retropharyngeal tumor excision is performed, as named specifically in the descriptor. Oral and maxillofacial procedures requiring intraoral access to excise a retropharyngeal tumor should use <strong>CPT Code 00174<\/strong> rather than a more general intraoral biopsy code. See also other CPT coding references on the Pabau procedure codes resource library.<\/p>\n\n\n\n<h2 id=\"h-cpt-00174-anesthesia-base-units\" class=\"wp-block-heading\">CPT 00174 anesthesia base units<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CPT 00174 carries <strong>6 base units<\/strong>. Base units represent the inherent complexity and risk of the anesthesia service itself, independent of how long the procedure takes. The American Society of Anesthesiologists (ASA) assigns base unit values; higher-risk or more technically demanding procedures carry more base units.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For context, common head anesthesia codes carry between 4 and 15 base units. At 6 units, CPT 00174 sits toward the lower end of that range. Time units are added on top, which is covered in the billing formula section below.<\/p>\n\n\n\n<h2 id=\"h-how-to-calculate-reimbursement-for-cpt-code-00174\" class=\"wp-block-heading\">How to calculate reimbursement for CPT Code 00174<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Anesthesia billing uses a unit-based formula, not the standard RVU system used for most other CPT codes. The <a href=\"https:\/\/www.cms.gov\/medicare\/physician-fee-schedule\/search\/overview\" target=\"_blank\" rel=\"nofollow noopener\">CMS Physician Fee Schedule<\/a> publishes the Medicare anesthesia conversion factor annually; commercial payers set their own conversion factors, which vary by contract.<\/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\">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\">Example (CPT 00174)<\/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\">Inherent procedure complexity (assigned by ASA)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">6<\/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\">1 unit per 15 minutes of anesthesia time (most payers; some use 10-min increments)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">4 (60-minute case = 4 units)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Modifying Units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Qualifying circumstances add-on codes (99100-99140)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">1 (e.g., patient under age 1 year, code 99100)<\/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\">Dollar value per unit; varies by payer, year, and geography<\/td>\n<td style=\"padding:12px 16px;color:#374151\">~$21 (approximate Medicare range; confirm current year rate)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Total Units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Base + Time + Modifying<\/td>\n<td style=\"padding:12px 16px;color:#374151\">6 + 4 + 1 = 11 units<\/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\">Total Units x Conversion Factor<\/td>\n<td style=\"padding:12px 16px;color:#374151\">11 x ~$21 = ~$231 (illustrative only)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">The formula is: <strong>(Base Units + Time Units + Modifying Units) x Conversion Factor = Reimbursement<\/strong>. The Medicare conversion factor changes annually and varies by geographic locality. Use the <a href=\"https:\/\/fastrvu.com\/tools\/rvu-lookup\" target=\"_blank\" rel=\"nofollow noopener\">FastRVU 2026 RVU lookup<\/a> to confirm current-year Medicare anesthesia conversion factor values by locality. Commercial payer rates are contract-specific and often higher than Medicare.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Time reporting: most payers follow the CMS standard of 1 time unit per 15 minutes. Some commercial payers use 10-minute increments. Verify your payer&#8217;s time unit convention before submitting claims for CPT Code 00174 to avoid systematic underpayment or audit flags.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/pabau.com\/blog\/best-medical-practice-management-software\/\">best medical practice management tools<\/a> capture start and stop times at the point of care, which anesthesia billing depends on.<\/p>\n\n\n\n<h2 id=\"h-modifiers-for-cpt-code-00174\" class=\"wp-block-heading\">Modifiers for CPT Code 00174<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Modifier selection is where most CPT 00174 claims run into trouble. Anesthesia modifiers signal who delivered the service and under what supervision arrangement. Selecting the wrong modifier triggers denials and can flag an account for audit. Use <a href=\"https:\/\/www.aapc.com\/codes\/cpt-codes-range\/\" target=\"_blank\" rel=\"nofollow noopener\">AAPC Codify<\/a> to verify modifier applicability against current payer policies.<\/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\">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\">When to Use<\/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 services personally performed by anesthesiologist<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesiologist is present and personally performs the entire service<\/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 with medical direction by physician<\/td>\n<td style=\"padding:12px 16px;color:#374151\">CRNA performing under an anesthesiologist&#8217;s medical direction<\/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 exactly one CRNA<\/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 physician<\/td>\n<td style=\"padding:12px 16px;color:#374151\">CRNA practicing independently (where state law permits)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">AD<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Medical supervision by physician, more than 4 concurrent procedures<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesiologist supervising 5+ concurrent CRNA cases<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">QK<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Medical direction of 2-4 concurrent anesthesia procedures<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesiologist directing 2-4 simultaneous CRNA cases<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">QS<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Monitored Anesthesia Care (MAC)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Required by Medicare for all MAC claims; verify other payer requirements<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">G9<\/td>\n<td style=\"padding:12px 16px;color:#374151\">MAC for patient with history of severe cardiopulmonary condition<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Patient has documented severe cardiopulmonary condition; confirm payer requirements<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">For anesthesia and procedure code modifiers, the supervision ratio matters. Medicare distinguishes between medical direction (QX\/QY\/QK, where the anesthesiologist directs 1-4 CRNAs and meets specific service requirements) and medical supervision (AD, for 5+ concurrent cases).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Misapplying these modifiers constitutes an incorrect claim. The same supervision-ratio logic applies to other anesthesia codes.<\/p>\n\n\n\n<h2 id=\"h-qualifying-circumstances-that-apply-to-cpt-code-00174\" class=\"wp-block-heading\">Qualifying circumstances that apply to CPT Code 00174<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Qualifying circumstances are add-on codes reported alongside the primary anesthesia code when specific clinical conditions are present. They add modifying units to the billing formula. Each has strict clinical criteria; billing these codes without documentation support creates upcoding 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\">Add-on 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\">Modifying Units Added<\/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\">99100<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for patient of extreme age (under 1 year or over 70 years)<\/td>\n<td style=\"padding:12px 16px;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\">99116<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Utilization of total body hypothermia<\/td>\n<td style=\"padding:12px 16px;color:#374151\">5<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">99135<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Controlled hypotension during anesthesia<\/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\">99140<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Emergency conditions (patient&#8217;s life is at immediate risk)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Code 99100 is the most frequently applicable for intraoral procedures, since pediatric and geriatric patients are common in this procedure category. The same add-on codes apply across the anesthesia code set. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The emergency code 99140 requires documentation that the patient&#8217;s life was at immediate risk, not merely that a procedure was performed urgently. Payer acceptance of qualifying circumstances varies; verify with each payer before reporting.<\/p>\n\n\n\n<h2 id=\"h-icd-10-codes-commonly-linked-to-cpt-code-00174\" class=\"wp-block-heading\">ICD-10 codes commonly linked to CPT Code 00174<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Anesthesia codes are typically paired with the diagnosis code that describes the condition requiring the surgical procedure. For CPT Code 00174, the relevant ICD-10 diagnosis codes reflect the underlying pathology prompting the intraoral procedure or the retropharyngeal tumor excision.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use the <a href=\"https:\/\/www.aapc.com\/codify\/icd-10-crosswalk.aspx\" target=\"_blank\" rel=\"nofollow noopener\">AAPC CPT-to-ICD-10 crosswalk<\/a> to confirm medical necessity pairings for your payer&#8217;s LCD or NCD requirements. A benign nasopharyngeal mass, for example.<\/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 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\">Clinical 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\">D10.6<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Benign neoplasm of nasopharynx<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Excision of a benign retropharyngeal\/nasopharyngeal mass<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">C10.9<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Malignant neoplasm of oropharynx, unspecified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Excision or biopsy confirming or staging an oropharyngeal\/retropharyngeal malignancy<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">J39.0<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Retropharyngeal and parapharyngeal abscess<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Surgical drainage or excision in the retropharyngeal space<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">D10.30<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Benign neoplasm of unspecified part of mouth<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Biopsy of a benign intraoral mass<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">C06.9<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Malignant neoplasm of mouth, unspecified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Biopsy confirming or staging an intraoral malignancy<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">K09.8<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Other cysts of oral region, not elsewhere classified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Excision or biopsy of an intraoral cystic lesion<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Always confirm ICD-10 pairings against your payer&#8217;s Local Coverage Determination (LCD) or National Coverage Determination (NCD) before claim submission. Diagnosis code documentation in the anesthesia record must support medical necessity \u2014 for example.<\/p>\n\n\n\n<h2 id=\"h-cpt-00174-vs-00170-how-the-codes-differ\" class=\"wp-block-heading\">CPT 00174 vs. 00170: How the codes differ<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CPT 00174 is frequently confused with the adjacent code CPT 00170. Both cover intraoral procedures, but CPT 00170 is the not-otherwise-specified (NOS) code for intraoral biopsy procedures, while CPT 00174 is reserved specifically for anesthesia during excision of a retropharyngeal tumor. Billing the wrong code is a frequent denial trigger in the head anesthesia range.<\/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\">Feature<\/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\">CPT 00170<\/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\">CPT 00174<\/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\">Descriptor<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for intraoral procedures, including biopsy (not otherwise specified)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for intraoral procedures, including biopsy; excision of retropharyngeal tumor<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Base Units<\/td>\n<td style=\"padding:12px 16px;color:#374151\">5<\/td>\n<td style=\"padding:12px 16px;color:#374151\">6<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Key Differentiator<\/td>\n<td style=\"padding:12px 16px;color:#374151\">General intraoral biopsy procedures with no more specific applicable code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Specific to excision of a retropharyngeal tumor<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Selection Guidance<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Use for intraoral biopsy procedures when no more specific code in the range applies<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Use specifically when the operative note documents excision of a retropharyngeal tumor<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">The two codes differ by one base unit (5 for 00170 versus 6 for 00174), so reimbursement is slightly higher for 00174. The distinction matters most for medical necessity alignment: the ICD-10 diagnosis code paired with the claim should match the specific procedure described by the CPT code selected.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The operative note should clearly document a retropharyngeal tumor excision before 00174 is used instead of the NOS code 00170. For surgical procedure coding guidance across specialties.<\/p>\n\n\n\n<h2 id=\"h-documentation-requirements-for-cpt-code-00174\" class=\"wp-block-heading\">Documentation requirements for CPT Code 00174<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Clean claims for CPT Code 00174 require a complete anesthesia record. Missing or incomplete documentation is the most common reason for post-payment audit recoupment in the anesthesia code range. Maintaining HIPAA-compliant documentation practices is also a baseline requirement for all anesthesia claims.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pre-anesthesia evaluation:<\/strong> documented assessment of the patient&#8217;s physical status (ASA physical status classification), allergies, medications, and relevant medical history<\/li>\n\n\n\n<li><strong>Anesthesia start and stop times:<\/strong> recorded to the minute; forms the basis for time unit calculation<\/li>\n\n\n\n<li><strong>Continuous monitoring record:<\/strong> vital signs, oxygen saturation, end-tidal CO2, and other monitoring parameters at timed intervals<\/li>\n\n\n\n<li><strong>Anesthesia technique:<\/strong> type of anesthesia administered (general, MAC, regional), agents used, and doses<\/li>\n\n\n\n<li><strong>Provider identification:<\/strong> CRNA, anesthesiologist, or medically directed team arrangement clearly documented<\/li>\n\n\n\n<li><strong>Medical necessity:<\/strong> documentation supporting the need for anesthesia for the specific intraoral procedure<\/li>\n\n\n\n<li><strong>Post-anesthesia note:<\/strong> patient condition at conclusion of anesthesia care<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For practices using digital workflows. The same standardization matters whether anesthesia is coordinated at a surgical facility or through a private practice referring patients out for the procedure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practices that embed documentation prompts into their workflows report fewer missing-data denials on anesthesia claims.<\/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-00174\/digital-forms.webp\" alt=\"Digital forms\"\/><figcaption class=\"wp-element-caption\"><em>Digital forms<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\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 anesthesia records quarterly for missing start and stop times. A single missing time field converts a clean 00174 claim into a documentation deficiency, often resulting in a request for additional information or outright denial. Build a pre-submission checklist into your billing workflow to catch these issues before the claim leaves your practice.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-how-pabau-supports-anesthesia-billing-and-cpt-code-00174-management\" class=\"wp-block-heading\">How Pabau supports anesthesia billing and CPT Code 00174 management<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Anesthesia billing practices that struggle with CPT Code 00174 denials often have a documentation problem, not a coding knowledge problem. Pabau&#8217;s claims management software includes a built-in CPT procedure code library, enabling billing teams to attach the correct code, modifiers, and supporting documentation at the point of care rather than reconstructing records after the fact.<\/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-00174\/fully-integrated-with-pabau-billing.webp\" alt=\"Fully Integrated with Pabau Billing\"\/><figcaption class=\"wp-element-caption\"><em>Fully Integrated with Pabau Billing<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">For practices where anesthesiologists or CRNAs need to capture pre-anesthesia evaluation notes efficiently. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Surgical practices managing anesthesia coordination alongside procedural workflows benefit from surgical practice management tools that connect clinical and billing functions in a single system.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\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                    Reduce anesthesia claim denials with smarter documentation workflows                <\/h3>\n\n                <p class=\"description\">\n                    Pabau&#8217;s claims management software supports accurate CPT code submission with procedure code libraries, digital documentation, and built-in billing workflows designed for surgical and anesthesia practices.                <\/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 claims management dashboard\"\n                    loading=\"lazy\"\n                \/>\n            <\/div>\n        <\/div>\n        \n\n\n<h2 id=\"h-related-anesthesia-cpt-codes-in-the-head-series-00100-00222\" class=\"wp-block-heading\">Related anesthesia CPT codes in the head series (00100-00222)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CPT 00174 belongs to the head anesthesia code range, which covers procedures from the scalp through the oral cavity and facial structures. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Selecting the most specific applicable code within this range is required. Use the procedure documentation to determine the correct code rather than defaulting to the most familiar one.<\/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:center;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\">00100<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for procedures on salivary glands, including biopsy<\/td>\n<td style=\"padding:12px 16px;color:#374151;text-align:center\">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\">00160<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for procedures on nose and accessory sinuses<\/td>\n<td style=\"padding:12px 16px;color:#374151;text-align:center\">5<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">00170<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for intraoral procedures, including biopsy (not otherwise specified)<\/td>\n<td style=\"padding:12px 16px;color:#374151;text-align:center\">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\">00174<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for intraoral procedures, including biopsy; excision of retropharyngeal tumor<\/td>\n<td style=\"padding:12px 16px;color:#374151;text-align:center\">6<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">00176<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for intraoral procedures; radical surgery<\/td>\n<td style=\"padding:12px 16px;color:#374151;text-align:center\">7<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">00190<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for procedures on facial bones or skull<\/td>\n<td style=\"padding:12px 16px;color:#374151;text-align:center\">5<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">00192<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anesthesia for procedures on facial bones or skull; radical surgery (including prognathism)<\/td>\n<td style=\"padding:12px 16px;color:#374151;text-align:center\">7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Radical intraoral surgery (00176) and radical surgery of facial bones or skull (00192) carry higher base units than CPT 00174, while non-radical facial bone procedures (00190) carry fewer. Billing CPT Code 00174 for a procedure that meets the descriptor for a higher-complexity code in this range is undercoding and reduces reimbursement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Verify the surgical procedure note against the specific descriptor before selecting the anesthesia code.<\/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>Cross-check the anesthesia code selection against the surgical CPT code on the claim. If the surgeon billed a code for radical surgery of facial bones or skull, radical intraoral surgery, or other facial bone work, and the anesthesiologist billed 00174 instead of 00176, 00190, or 00192, the mismatch is an audit flag. Coordinate code selection between the surgical and anesthesia billing teams before submission.<\/p>\n            <\/div>\n        <\/div>\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-00400\/\">CPT code 00400 \u2014 Anesthesia for integumentary system procedures<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00176\/\">CPT code 00176 \u2014 Anesthesia for intraoral procedures, radical surgery<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00190\/\">CPT code 00190 \u2014 Anesthesia for facial bones and skull<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00192\/\">CPT Code 00192 \u2014 Anesthesia for facial bone and skull procedures<\/a><\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-conclusion\" class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CPT Code 00174 is a precise tool for anesthesia billing on intraoral procedures, including excision of a retropharyngeal tumor. The most common failure points are modifier misselection (especially CRNA supervision modifiers), inadequate time documentation, and incorrect code selection when an adjacent code more accurately describes the procedure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practices that build CPT code libraries, modifier rules, and documentation checklists into their workflow at the point of care experience fewer denials than those that reconstruct records after the fact. Pabau&#8217;s claims management tools are designed for exactly that workflow. To see how it works in practice, <a href=\"https:\/\/pabau.com\/book-demo\/\">book a demo<\/a> with the Pabau team.<\/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>Anesthesia billing for intracranial procedures?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-00212\/\">CPT 00212<\/a> covers anesthesia for intracranial procedures and subdural taps, another code in the CPT head anesthesia range.<\/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 for foot and ankle procedures?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-28760\/\">CPT 28760<\/a> covers Jones-type arthrodesis, with base units, modifiers, and reimbursement guidance.<\/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 a reference for injection billing?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-96372\/\">CPT 96372<\/a> covers therapeutic injection billing, modifiers, and reimbursement.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-frequently-asked-questions\" 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-1784874544000\"><h3 class=\"schema-faq-question\">What does CPT Code 00174 cover?<\/h3> <p class=\"schema-faq-answer\">CPT Code 00174 covers anesthesia services provided during intraoral procedures, including biopsy; excision of retropharyngeal tumor. It applies to anesthesiologists and CRNAs delivering anesthesia for retropharyngeal tumor excision and other intraoral surgical procedures, and falls within the CPT head anesthesia section (codes 00100-00222).<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784874544001\"><h3 class=\"schema-faq-question\">How many base units does CPT 00174 have?<\/h3> <p class=\"schema-faq-answer\">CPT 00174 has 6 base units, as assigned by the American Society of Anesthesiologists. These represent the inherent complexity of the anesthesia service; time units and any applicable modifying units from qualifying circumstances are added to calculate total billable units.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784874544002\"><h3 class=\"schema-faq-question\">Can a CRNA bill CPT Code 00174?<\/h3> <p class=\"schema-faq-answer\">Yes, a CRNA can bill CPT Code 00174, with the appropriate modifier reflecting the supervision arrangement. Use modifier QZ for an independent CRNA, QX for a CRNA under medical direction, or QY when an anesthesiologist is directing exactly one CRNA. State law governs whether a CRNA may practice without physician direction; modifier selection must match the actual arrangement.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784874544003\"><h3 class=\"schema-faq-question\">What modifiers are required for Monitored Anesthesia Care (MAC) billing with CPT 00174?<\/h3> <p class=\"schema-faq-answer\">Medicare requires the QS modifier for all MAC claims, including CPT 00174. Modifier G8 is restricted by CMS to codes 00100, 00160, 00300, 00400, 00532, and 00920, so it does not apply to CPT 00174. Modifier G9 applies when the patient has a documented severe cardiopulmonary condition. Verify whether your commercial payers have additional MAC modifier requirements beyond Medicare&#8217;s QS mandate.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784874544004\"><h3 class=\"schema-faq-question\">What qualifying circumstances apply to CPT 00174?<\/h3> <p class=\"schema-faq-answer\">Add-on code 99100 (extreme age: under 1 year or over 70 years) is the most commonly applicable qualifying circumstance for intraoral procedures billed with CPT 00174. Code 99140 applies when the procedure is performed under emergency conditions. Each qualifying circumstance requires specific documentation support; billing these codes without adequate documentation creates upcoding exposure.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784874544005\"><h3 class=\"schema-faq-question\">What is the difference between CPT 00170 and CPT 00174?<\/h3> <p class=\"schema-faq-answer\">CPT 00170 is the not-otherwise-specified code for intraoral biopsy procedures and carries 5 base units, while CPT 00174 is specific to excision of a retropharyngeal tumor and carries 6 base units. Selection depends on the operative note: general intraoral biopsy with no more specific applicable code maps to 00170; excision of a retropharyngeal tumor maps to 00174.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>CPT Code 00174 is the anesthesia code for intraoral procedures, including biopsy or excision of a retropharyngeal tumor, billed within the CPT Head Anesthesia section (00100-00222). It carries 6 base units and is frequently confused with the adjacent not-otherwise-specified code, CPT 00170. This reference guide covers the official descriptor for CPT Code 00174, its 6 [&hellip;]<\/p>\n","protected":false},"author":81,"featured_media":163326,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"88","_yoast_wpseo_content_score":"30","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[1433,1546],"tags":[4162,1602,4164],"class_list":["post-163328","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-billing-codes","category-cpt-codes","tag-anesthesia-billing","tag-cpt-modifiers","tag-crna"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>CPT Code 00174: Anesthesia for intraoral procedures<\/title>\n<meta name=\"description\" content=\"CPT Code 00174 covers anesthesia for intraoral procedures, including retropharyngeal tumor excision. Base units, billing formula, modifiers.\" \/>\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\/es\/procedure-codes\/cpt-code-00174\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CPT Code 00174: Anesthesia for intraoral procedures\" \/>\n<meta property=\"og:description\" content=\"CPT Code 00174 covers anesthesia for intraoral procedures, including retropharyngeal tumor excision. 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It applies to anesthesiologists and CRNAs delivering anesthesia for retropharyngeal tumor excision and other intraoral surgical procedures, and falls within the CPT head anesthesia section (codes 00100-00222).","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/#faq-question-1784874544001","position":2,"url":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/#faq-question-1784874544001","name":"How many base units does CPT 00174 have?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"CPT 00174 has 6 base units, as assigned by the American Society of Anesthesiologists. These represent the inherent complexity of the anesthesia service; time units and any applicable modifying units from qualifying circumstances are added to calculate total billable units.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/#faq-question-1784874544002","position":3,"url":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/#faq-question-1784874544002","name":"Can a CRNA bill CPT Code 00174?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, a CRNA can bill CPT Code 00174, with the appropriate modifier reflecting the supervision arrangement. Use modifier QZ for an independent CRNA, QX for a CRNA under medical direction, or QY when an anesthesiologist is directing exactly one CRNA. State law governs whether a CRNA may practice without physician direction; modifier selection must match the actual arrangement.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/#faq-question-1784874544003","position":4,"url":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/#faq-question-1784874544003","name":"What modifiers are required for Monitored Anesthesia Care (MAC) billing with CPT 00174?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Medicare requires the QS modifier for all MAC claims, including CPT 00174. Modifier G8 is restricted by CMS to codes 00100, 00160, 00300, 00400, 00532, and 00920, so it does not apply to CPT 00174. Modifier G9 applies when the patient has a documented severe cardiopulmonary condition. Verify whether your commercial payers have additional MAC modifier requirements beyond Medicare's QS mandate.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/#faq-question-1784874544004","position":5,"url":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/#faq-question-1784874544004","name":"What qualifying circumstances apply to CPT 00174?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Add-on code 99100 (extreme age: under 1 year or over 70 years) is the most commonly applicable qualifying circumstance for intraoral procedures billed with CPT 00174. Code 99140 applies when the procedure is performed under emergency conditions. Each qualifying circumstance requires specific documentation support; billing these codes without adequate documentation creates upcoding exposure.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/#faq-question-1784874544005","position":6,"url":"https:\/\/pabau.com\/es\/procedure-codes\/cpt-code-00174\/#faq-question-1784874544005","name":"What is the difference between CPT 00170 and CPT 00174?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"CPT 00170 is the not-otherwise-specified code for intraoral biopsy procedures and carries 5 base units, while CPT 00174 is specific to excision of a retropharyngeal tumor and carries 6 base units. Selection depends on the operative note: general intraoral biopsy with no more specific applicable code maps to 00170; excision of a retropharyngeal tumor maps to 00174.","inLanguage":"es"},"inLanguage":"es"}]}},"yoast":{"focus_keyword":"CPT code 00174","seo_title":"CPT Code 00174: Anesthesia for intraoral procedures","meta_description":"CPT Code 00174 covers anesthesia for intraoral procedures, including retropharyngeal tumor excision. Base units, billing formula, modifiers.","content_score":"30","is_cornerstone":"","related_keyphrases":[{"keyword":"anesthesia billing formula","score":61},{"keyword":"anesthesia base units","score":67},{"keyword":"CPT 00174 modifiers","score":61}]},"_links":{"self":[{"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/posts\/163328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/users\/81"}],"replies":[{"embeddable":true,"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/comments?post=163328"}],"version-history":[{"count":5,"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/posts\/163328\/revisions"}],"predecessor-version":[{"id":183184,"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/posts\/163328\/revisions\/183184"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/media\/163326"}],"wp:attachment":[{"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/media?parent=163328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/categories?post=163328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pabau.com\/es\/wp-json\/wp\/v2\/tags?post=163328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}