{"id":158002,"date":"2026-07-17T09:26:59","date_gmt":"2026-07-17T09:26:59","guid":{"rendered":"https:\/\/pabau.com\/?p=158002"},"modified":"2026-08-17T12:04:38","modified_gmt":"2026-08-17T12:04:38","slug":"hcpcs-code-g0439","status":"publish","type":"post","link":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/","title":{"rendered":"HCPCS code G0439: Billing guide for subsequent annual wellness visits"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"HCPCS Code G0439: Billing Guide for Subsequent Annual Wellness Visits\",\"description\":\"Complete billing guide for HCPCS code G0439 (subsequent annual wellness visit). Covers G0439 vs G0438, required documentation, Medicare reimbursement, modifiers, and denial prevention.\",\"url\":\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0439\/\",\"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\":\"2026-07-17\",\"dateModified\":\"2026-07-17\"}<\/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>HCPCS code G0439 is the Medicare Part B code for a subsequent Annual Wellness Visit, billed after the initial visit (G0438) is already on file for the patient.<\/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>G0439 requires at least 12 full months from the date of service of G0438 before it can be billed; eligibility begins on the first day of the same calendar month the following year.<\/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>Medicare Part B covers G0439 at 100% with no patient cost-sharing when billed as a standalone preventive visit and fully documented per CMS requirements.<\/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 flags missing AWV documentation fields and tracks visit frequency to help reduce G0439 claim denials.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\">HCPCS code G0439 is the Medicare Part B billing code for a subsequent Annual Wellness Visit, billed once a patient&#8217;s initial visit (G0438) is on file and the required 12-month interval has passed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It&#8217;s also one of the most routinely denied preventive codes in family and internal medicine, usually the result of a missed PPPS update, a visit billed too early, or confusion between G0438 and G0439. Practices running GP software or wellness clinic software bill this code the most, since Medicare Annual Wellness Visits sit squarely in primary care.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide covers the code definition, eligibility timeline, required documentation, reimbursement rates, modifier rules, and the most common denial triggers, so your billing team can submit clean G0439 claims every time.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">HCPCS code G0439: Definition and clinical context<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HCPCS code G0439 is defined by the <a href=\"https:\/\/www.cms.gov\/medicare\/coding-billing\/healthcare-common-procedure-system\" target=\"_blank\" rel=\"nofollow noopener\">CMS HCPCS overview<\/a> as: <em>Annual wellness visit, includes a personalized prevention plan of service (PPPS), subsequent visit.<\/em> It is a Level II HCPCS code maintained by the Centers for Medicare &amp; Medicaid Services (CMS) and billed under Medicare Part B for beneficiaries who have already completed an initial Annual Wellness Visit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Annual Wellness Visit is a preventive benefit introduced under the Affordable Care Act. It is not a physical examination. Its purpose is to review and update the patient&#8217;s Personalized Prevention Plan of Services (PPPS) \u2014 a documented, individualized plan addressing health risks, screening recommendations, and preventive care goals.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">G0439 is the code that covers every subsequent visit in that series, billed once per calendar year after the first year.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">G0438 vs G0439: Key differences<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The two codes are not interchangeable. Getting this wrong is the single most common denial reason for AWV claims.<\/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\">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\">Visit Type<\/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\">Eligibility<\/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\">Frequency<\/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\">Cost-Sharing<\/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\">G0438<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Initial AWV<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Medicare Part B for at least 12 months; no AWV in past<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Once per lifetime<\/td>\n<td style=\"padding:12px 16px;color:#374151\">No deductible or coinsurance (when billed as preventive)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">G0439<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent AWV<\/td>\n<td style=\"padding:12px 16px;color:#374151\">G0438 already on file; 12-month interval met<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Once per calendar year (after the first AWV year)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">No deductible or coinsurance (when billed as preventive)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">The 12-month rule for G0439 has a specific CMS definition. The new visit must occur on or after the first day of the month that is 12 months after the month the G0438 service was provided.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Billing G0439 even one day before that date results in a denial. The visit cannot be billed on the anniversary date itself if the month has not yet reset.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">AWV vs annual physical: Understanding the distinction<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Practices frequently bill G0439 for what was actually a routine physical examination. That is a coding error with real financial consequences. Here is how the two visits differ:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Annual Wellness Visit (G0438\/G0439):<\/strong> Medicare Part B preventive benefit; no hands-on physical examination required; focuses on PPPS development and updating; no patient cost-sharing when billed correctly<\/li><li><strong>Annual physical \/ preventive E&amp;M (99381-99397):<\/strong> Includes a comprehensive physical exam; may involve a different clinical focus; cost-sharing may apply under Medicare<\/li><li><strong>Key overlap risk:<\/strong> If the provider performs a physical exam during a visit billed as G0439, the visit may be re-coded to an E&amp;M by payers, triggering cost-sharing and deductible application<\/li><li><strong>Documentation tells the payer which visit occurred:<\/strong> AWV documentation must match G0439 required elements precisely; generic SOAP notes do not suffice<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The AWV is a distinct service from a physical exam, not a scaled-down version of one. Practices that conflate the two often find their AWV claims converted to E&amp;M visits during audit, creating patient billing disputes and compliance exposure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tracking preventive services is simpler in <a href=\"https:\/\/pabau.com\/industry\/gp-clinic-software\/\">software for GP clinics<\/a> that logs each visit against its billing code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">G0402, G0438, and G0439: The full AWV code family<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">These three codes represent the complete Medicare preventive visit lifecycle. Understanding where each fits prevents miscoding across the AWV-family procedure codes used in primary care practices.<\/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\">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\">Name<\/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 Used<\/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\">One-Time or Annual<\/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\">G0402<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Welcome to Medicare Preventive Visit (IPPE)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Within first 12 months of Part B enrollment; no prior AWV<\/td>\n<td style=\"padding:12px 16px;color:#374151\">One-time benefit<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">G0438<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Initial Annual Wellness Visit<\/td>\n<td style=\"padding:12px 16px;color:#374151\">12+ months after Part B enrollment; no prior AWV on file<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Once per lifetime<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">G0439<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent Annual Wellness Visit<\/td>\n<td style=\"padding:12px 16px;color:#374151\">12+ months after G0438 or prior G0439<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Annually thereafter<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">G0402 is a one-time benefit and is <em>not<\/em> the same as G0438, even though both involve a Medicare preventive visit. Practices serving new Medicare enrollees must bill G0402 for that first visit, then transition to G0438 at the appropriate interval.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Skipping G0402 and billing G0438 too early is a compliance risk across the AWV code family.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Required elements and documentation for G0439 billing<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CMS requires specific elements to be documented for every G0439 claim. Missing even one component is sufficient grounds for denial on audit. The note must reflect all of the following, per current CMS AWV guidance:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Review and update of the patient&#8217;s medical and family history<\/li><li>List of current providers and suppliers (updated from the prior AWV)<\/li>\n<li>Updated measurement of height, weight, BMI (or waist circumference where appropriate)<\/li>\n<li>Blood pressure measurement<\/li>\n<li>Updated cognitive impairment assessment<\/li>\n<li>Review of the patient&#8217;s functional ability and level of safety<\/li>\n<li>Establishment or update of a 5-10 year screening schedule<\/li>\n<li>Updated Personalized Prevention Plan of Services (PPPS)<\/li>\n<li>Updated list of risk factors and conditions for which intervention is recommended<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Using digital intake forms that capture all required AWV fields before the provider enters the room removes a significant documentation risk. When fields are pre-populated from structured intake data, billing staff can verify completeness at the point of claim submission rather than chasing the chart after the fact.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practices relying on generic SOAP templates routinely miss the PPPS update requirement, which is the most audited element of G0439 claims. For more on building compliant documentation workflows.<\/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\/hcpcs-code-g0439\/customizable-consent-and-intake-forms.webp\" alt=\"Customizable consent and intake forms\"\/><figcaption class=\"wp-element-caption\"><em>Customizable consent and intake forms<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Medicare reimbursement rate for HCPCS code G0439<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Medicare Part B reimburses G0439 under the Physician Fee Schedule (PFS). When billed as a standalone preventive visit with full documentation, there is no patient deductible and no coinsurance \u2014 Medicare covers 100% of the approved amount.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The national average non-facility reimbursement for G0439 is approximately $137.61 per visit under the 2026 PFS, though geographic adjustment factors (GAF) cause rates to vary by Medicare Administrative Contractor (MAC) region. High-cost areas such as New York City and San Francisco typically reimburse 15-25% above the national average, while rural or lower-cost geographies may fall below it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To verify the exact reimbursement rate for your practice location, use the <a href=\"https:\/\/www.cms.gov\/medicare\/physician-fee-schedule\/search\/overview\" target=\"_blank\" rel=\"nofollow noopener\">CMS Physician Fee Schedule<\/a> lookup tool, selecting the current year and your MAC region. Rates are updated annually on January 1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Billing based on prior-year rates without checking the current fee schedule is a common revenue shortfall in practices that don&#8217;t refresh their billing benchmarks at the start of each fiscal year.<\/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>Check your MAC region&#8217;s G0439 rate each January before your first AWV claim of the year. CMS adjusts the Physician Fee Schedule annually, and billing based on a prior year&#8217;s rate creates small but cumulative revenue shortfalls &#8211; especially across a high-volume Medicare panel.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 class=\"wp-block-heading\">Same-day billing: G0439 with E&#038;M codes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Practices can bill an Evaluation and Management (E&amp;M) service on the same day as G0439 &#8211; but only when a separately identifiable medical problem is addressed. The rules are specific and the documentation requirements are strict.<\/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\">Scenario<\/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\">Billable?<\/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\">Modifier Required<\/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\">Documentation Requirement<\/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\">G0439 only<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<td style=\"padding:12px 16px;color:#374151\">None<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Complete AWV elements per CMS checklist<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">G0439 + E&amp;M same day<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes (with conditions)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Modifier 25 on the E&amp;M code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Separately identifiable problem clearly documented; E&amp;M note distinct from AWV note<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">G0439 + physical exam billed as E&amp;M<\/td>\n<td style=\"padding:12px 16px;color:#374151\">High denial risk<\/td>\n<td style=\"padding:12px 16px;color:#374151\">N\/A<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Payers may deny G0439 if visit appears primarily E&amp;M in character<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Modifier 25 signals to the payer that a significant, separately identifiable E&amp;M service was performed on the same day as a preventive service. Without it, the E&amp;M claim will be bundled and denied.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The E&amp;M note must stand entirely on its own \u2014 it cannot reference the AWV documentation as its clinical basis. If the two services are documented in a single note, billing staff cannot separate them, and the E&amp;M portion is typically lost.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ICD-10 diagnosis codes to pair with G0439<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Medicare requires a diagnosis code on every G0439 claim. The appropriate ICD-10 Z-codes for a preventive wellness visit are:<\/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\">Usage with G0439<\/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\">Z00.00<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Encounter for general adult medical examination without abnormal findings<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary diagnosis when no abnormal findings 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\">Z00.01<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Encounter for general adult medical examination with abnormal findings<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary diagnosis when abnormal findings are documented and addressed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Z00.00 and Z00.01 are the standard first-listed diagnosis codes paired with G0439 claims, per current ICD-10-CM guidance and MAC LCD policies. When Z00.01 is used, the abnormal findings must be clearly documented in the visit note \u2014 the code selection must match the clinical content.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Additional secondary ICD-10 codes reflecting chronic conditions (hypertension, diabetes, COPD) may be listed after the primary Z-code, but the Z-code must be listed first for the preventive nature of the visit to be recognized. A cognitive assessment finding that needs further evaluation is typically coded separately under ICD-10 F09 rather than folded into the AWV&#8217;s Z-code.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Verify your MAC&#8217;s specific covered diagnosis requirements against its current Local Coverage Determination (LCD), as requirements can vary by region. For HCPCS code lookup and crosswalk support, <a href=\"https:\/\/www.aapc.com\/codes\/hcpcs-codes-range\/\" target=\"_blank\" rel=\"nofollow noopener\">AAPC&#8217;s HCPCS code reference<\/a> provides a searchable index of covered diagnoses by code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common G0439 billing mistakes and how to avoid them<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Most G0439 denials trace back to a small set of recurring errors. These are the patterns billing staff encounter most often:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Billing G0439 before G0438 is on file:<\/strong> G0439 cannot be submitted for a patient who has not yet received G0438. If G0438 was billed by a different provider, confirm it is in the patient&#8217;s Medicare claim history before submitting G0439.<\/li><li><strong>Submitting G0439 before the 12-month interval:<\/strong> The visit date must fall on or after the first day of the month that is 12 months after G0438 (or the prior G0439). A single day&#8217;s difference is a denial.<\/li><li><strong>Incomplete PPPS documentation:<\/strong> The updated Personalized Prevention Plan of Services must be present in the note. A visit note that describes assessment findings without an explicit PPPS update does not meet the G0439 requirements.<\/li><li><strong>Using an E&#038;M code without Modifier 25:<\/strong> Same-day E&amp;M claims submitted alongside G0439 without Modifier 25 on the E&amp;M code are routinely bundled and denied.<\/li><li><strong>Wrong ICD-10 code as primary:<\/strong> Listing a chronic condition (e.g., hypertension) as the first-listed diagnosis on a G0439 claim signals a medical visit rather than a preventive one, triggering denial or cost-sharing reclassification.<\/li><li><strong>Billing G0402 and G0439 for the same patient:<\/strong> G0402 is a one-time benefit for new Medicare enrollees. It cannot be billed in the same year or on the same patient as G0439 unless the patient re-enrolls in Part B after a lapse in coverage.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Using automated billing workflows to flag claims with missing elements before submission, rather than relying on manual chart review, reduces the window for these errors significantly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A pre-submission check that cross-references the visit date against the patient&#8217;s G0438 service date, verifies the primary diagnosis code, and confirms PPPS field completion catches the top six denial causes before they reach the payer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For a broader look at HCPCS Level II codes, the <a href=\"https:\/\/www.pgmbilling.com\/hcpcs-lookup-tool\/\" target=\"_blank\" rel=\"nofollow noopener\">HCPCS code search tool<\/a> from PGM Billing lets teams verify code descriptions and payer assignment quickly.<\/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\/hcpcs-code-g0439\/automated-communication-in-pabau.webp\" alt=\"Automated communication in Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Automated communication in Pabau<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\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 G0439 claim denials with Pabau                <\/h3>\n\n                <p class=\"description\">\n                    Pabau&#8217;s claims management tools help primary care and wellness practices track AWV visit frequency, flag incomplete documentation fields, and automate pre-submission checks &#8211; so G0439 claims go out clean.                <\/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 class=\"wp-block-heading\">How practice management software streamlines G0439 billing<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Accurate G0439 billing requires coordination across scheduling, clinical documentation, and claims submission. Each step creates an opportunity for errors when managed manually. Practice management platforms that integrate all three reduce denial rates by closing the disconnects between them.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Specifically, the areas where software has the greatest impact on G0439 accuracy are:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Visit interval tracking:<\/strong> Automatically calculating the eligible rebilling date from the last G0438 or G0439 date of service, flagging patients whose AWV is due and alerting staff when a visit is scheduled too early<\/li><li><strong>Structured documentation templates:<\/strong> AWV-specific note templates that prompt providers to complete all CMS-required elements &#8211; PPPS update, cognitive assessment, BP measurement, screening schedule &#8211; before the note is finalized<\/li><li><strong>Claim scrubbing:<\/strong> Pre-submission edits that check the primary ICD-10 diagnosis against the claim type, verify Modifier 25 presence on same-day E&amp;M claims, and flag G0439 submissions where G0438 history is absent<\/li><li><strong>Denial tracking:<\/strong> Aggregated reporting on G0439 denial reasons so billing managers can identify systemic documentation issues rather than handling denials case by case<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For practices managing a Medicare panel, the volume of annual wellness visits makes each of these touchpoints a high-frequency risk. A claims management software solution that handles AWV eligibility checks and documentation completeness as part of the standard workflow removes the manual dependency.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Structured intake, compliant documentation, and clean claim submission work as one workflow when they live in the same system . Practices moving from disconnected EHR and billing tools to an integrated practice management platform typically report fewer denial cycles and faster reimbursement turnaround on preventive codes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scheduling logic that ties visit type to billing code selection prevents the most common upstream error in AWV 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\/hcpcs-code-g0439\/automate-claims-through-healthcode.webp\" alt=\"Automate claims and billing with Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Automate claims and billing with Pabau<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\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>Build a G0439-specific claim scrubbing rule in your billing system: if the submitted date of service is less than 12 months from the last G0438 or G0439 on file, hold the claim for manual review. This single automated check eliminates the most common denial reason for subsequent AWV claims.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 class=\"wp-block-heading\">The bottom line on G0439 claims<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">G0439 is a fully reimbursable Medicare benefit that many primary care practices fail to capture consistently. The code itself is straightforward. The denial rate is driven by incomplete documentation, timing errors, and missing modifiers, all preventable with the right systems in place.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pabau tracks AWV visit intervals, enforces structured AWV documentation templates, and runs pre-submission edits that catch G0439 errors before they reach the payer. For practices ready to reduce preventive billing denials, <a href=\"https:\/\/pabau.com\/book-demo\/\">book a demo<\/a> to see how the workflow operates 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>Billing home visits alongside preventive care?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-99350\/\">CPT 99350<\/a> carries the same documentation burden, and the same audit exposure when notes don&#8217;t stand on their own.<\/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>Mapping out next year&#8217;s revenue targets?<\/strong> A <a href=\"https:\/\/pabau.com\/blog\/medical-practice-business-plan\/\">practice business plan<\/a> lays out how preventive-visit income, staffing, and billing accuracy factor into growth.<\/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>Curious where billing automation saves the most time?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/clinic-automations-for-revenue-growth\/\">Automating revenue growth<\/a> walks through where claims and scheduling automation pay off first.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<h2 class=\"wp-block-heading\">Related HCPCS codes<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0155\/\">HCPCS code G0155 \u2014 Clinical Social Worker Home Health Billing<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0442\/\">HCPCS code G0442 \u2014 Medicare alcohol misuse screening<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0447\/\">HCPCS Code G0447 \u2014 Behavioral counseling for obesity<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0483\/\">HCPCS code G0483 \u2014 drug testing for 22+ drug classes<\/a><\/li>\n<\/ul>\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-1784274860418\"><h3 class=\"schema-faq-question\">What is HCPCS code G0439?<\/h3> <p class=\"schema-faq-answer\">HCPCS code G0439 is the Medicare Part B billing code for a subsequent Annual Wellness Visit (AWV), defined by CMS as &#8220;annual wellness visit, includes a personalized prevention plan of service (PPPS), subsequent visit.&#8221; It is billed after a patient has already received an initial AWV (G0438) and at least 12 months have elapsed since that first visit.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784274860419\"><h3 class=\"schema-faq-question\">What is the difference between G0438 and G0439?<\/h3> <p class=\"schema-faq-answer\">G0438 is the initial Annual Wellness Visit code, used once per lifetime for a Medicare beneficiary who has never had an AWV. G0439 is the subsequent AWV code, used for every annual visit after that first one. G0439 cannot be billed if G0438 has not yet been used for that patient.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784274860420\"><h3 class=\"schema-faq-question\">When can G0439 be billed after G0438?<\/h3> <p class=\"schema-faq-answer\">G0439 can be billed on or after the first day of the month that is 12 months after the month G0438 was provided. For example, if G0438 was billed on March 15, 2024, G0439 is eligible on April 1, 2025 &#8211; not March 15, 2025. Billing before this date results in denial.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784274860421\"><h3 class=\"schema-faq-question\">Can G0439 be billed on the same day as an E&amp;M visit?<\/h3> <p class=\"schema-faq-answer\">Yes, with conditions. An E&amp;M code can be billed on the same day as G0439 when a separately identifiable medical problem is addressed and clearly documented in a distinct note. Modifier 25 must be appended to the E&amp;M code. Without Modifier 25, the E&amp;M claim will be bundled and denied.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784274860422\"><h3 class=\"schema-faq-question\">What ICD-10 codes should be paired with G0439?<\/h3> <p class=\"schema-faq-answer\">Z00.00 (encounter for general adult medical examination without abnormal findings) or Z00.01 (with abnormal findings) are the standard first-listed diagnosis codes for G0439 claims. Chronic condition codes (hypertension, diabetes) may be listed as secondary diagnoses but must not be listed first, as this can trigger a medical-visit reclassification and cost-sharing application.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784274860423\"><h3 class=\"schema-faq-question\">What is the Medicare reimbursement rate for G0439?<\/h3> <p class=\"schema-faq-answer\">The national average non-facility Medicare reimbursement for G0439 is approximately $137.61 per visit under the 2026 Physician Fee Schedule, with geographic adjustment factors causing variation by MAC region. No patient deductible or coinsurance applies when the visit is billed correctly as a standalone preventive service. Verify your region&#8217;s current rate using the CMS Physician Fee Schedule lookup tool.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1784274860424\"><h3 class=\"schema-faq-question\">What modifiers apply to HCPCS code G0439?<\/h3> <p class=\"schema-faq-answer\">G0439 itself does not require a modifier for standalone billing. Modifier 25 is required on the accompanying E&amp;M code (not on G0439) when both are billed on the same date of service. No other modifiers are routinely required for G0439 in standard Medicare fee-for-service billing.<\/p> <\/div> <\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>HCPCS code G0439 is the Medicare Part B billing code for a subsequent Annual Wellness Visit, billed once a patient&#8217;s initial visit (G0438) is on file and the required 12-month interval has passed. It&#8217;s also one of the most routinely denied preventive codes in family and internal medicine, usually the result of a missed PPPS [&hellip;]<\/p>\n","protected":false},"author":77,"featured_media":158000,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"83","_yoast_wpseo_content_score":"30","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[1433,1548],"tags":[1582,2395,2949,3044,3234],"class_list":["post-158002","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-billing-codes","category-hcpcs","tag-hcpcs","tag-medicare-billing","tag-medicare-hcpcs-codes","tag-medicare-part-b","tag-preventive-care-codes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - 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is an all-in-one healthcare practice management software platform designed for clinics, medspas, therapists, and medical professionals. It combines scheduling, electronic health records, clinical forms, payments, marketing automation, reporting, and patient engagement tools into one secure cloud system to help practices streamline operations and grow their business.\",\"foundingDate\":\"2011-10-20\",\"numberOfEmployees\":{\"@type\":\"QuantitativeValue\",\"minValue\":\"201\",\"maxValue\":\"500\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/#\\\/schema\\\/person\\\/5de22f4ff3ec59b1925ef02dce956d7d\",\"name\":\"Katy Piper\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"nl-NL\",\"@id\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/cropped-Snip20260306_177-96x96.png\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/cropped-Snip20260306_177-96x96.png\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/cropped-Snip20260306_177-96x96.png\",\"caption\":\"Katy Piper\"},\"description\":\"Katy Piper is a content writer covering aesthetics, dermatology, and clinic operations, with a knack for making clinical detail feel approachable. Outside of work, she's usually chasing her border collie around muddy fields or hunting down the best flat white in town.\",\"url\":\"https:\\\/\\\/pabau.com\\\/nl\\\/blog\\\/author\\\/katy-piper\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/procedure-codes\\\/hcpcs-code-g0439\\\/#faq-question-1784274860418\",\"position\":1,\"url\":\"https:\\\/\\\/pabau.com\\\/nl\\\/procedure-codes\\\/hcpcs-code-g0439\\\/#faq-question-1784274860418\",\"name\":\"What is HCPCS code G0439?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"HCPCS code G0439 is the Medicare Part B billing code for a subsequent Annual Wellness Visit (AWV), defined by CMS as \\\"annual wellness visit, includes a personalized prevention plan of service (PPPS), subsequent visit.\\\" It is billed after a patient has already received an initial AWV (G0438) and at least 12 months have elapsed since that first visit.\",\"inLanguage\":\"nl-NL\"},\"inLanguage\":\"nl-NL\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/procedure-codes\\\/hcpcs-code-g0439\\\/#faq-question-1784274860419\",\"position\":2,\"url\":\"https:\\\/\\\/pabau.com\\\/nl\\\/procedure-codes\\\/hcpcs-code-g0439\\\/#faq-question-1784274860419\",\"name\":\"What is the difference between G0438 and G0439?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"G0438 is the initial Annual Wellness Visit code, used once per lifetime for a Medicare beneficiary who has never had an AWV. G0439 is the subsequent AWV code, used for every annual visit after that first one. G0439 cannot be billed if G0438 has not yet been used for that patient.\",\"inLanguage\":\"nl-NL\"},\"inLanguage\":\"nl-NL\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/procedure-codes\\\/hcpcs-code-g0439\\\/#faq-question-1784274860420\",\"position\":3,\"url\":\"https:\\\/\\\/pabau.com\\\/nl\\\/procedure-codes\\\/hcpcs-code-g0439\\\/#faq-question-1784274860420\",\"name\":\"When can G0439 be billed after G0438?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"G0439 can be billed on or after the first day of the month that is 12 months after the month G0438 was provided. For example, if G0438 was billed on March 15, 2024, G0439 is eligible on April 1, 2025 - not March 15, 2025. Billing before this date results in denial.\",\"inLanguage\":\"nl-NL\"},\"inLanguage\":\"nl-NL\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/procedure-codes\\\/hcpcs-code-g0439\\\/#faq-question-1784274860421\",\"position\":4,\"url\":\"https:\\\/\\\/pabau.com\\\/nl\\\/procedure-codes\\\/hcpcs-code-g0439\\\/#faq-question-1784274860421\",\"name\":\"Can G0439 be billed on the same day as an E&amp;M visit?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, with conditions. An E&amp;M code can be billed on the same day as G0439 when a separately identifiable medical problem is addressed and clearly documented in a distinct note. Modifier 25 must be appended to the E&amp;M code. Without Modifier 25, the E&amp;M claim will be bundled and denied.\",\"inLanguage\":\"nl-NL\"},\"inLanguage\":\"nl-NL\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/procedure-codes\\\/hcpcs-code-g0439\\\/#faq-question-1784274860422\",\"position\":5,\"url\":\"https:\\\/\\\/pabau.com\\\/nl\\\/procedure-codes\\\/hcpcs-code-g0439\\\/#faq-question-1784274860422\",\"name\":\"What ICD-10 codes should be paired with G0439?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Z00.00 (encounter for general adult medical examination without abnormal findings) or Z00.01 (with abnormal findings) are the standard first-listed diagnosis codes for G0439 claims. 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Outside of work, she's usually chasing her border collie around muddy fields or hunting down the best flat white in town.","url":"https:\/\/pabau.com\/nl\/blog\/author\/katy-piper\/"},{"@type":"Question","@id":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860418","position":1,"url":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860418","name":"What is HCPCS code G0439?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"HCPCS code G0439 is the Medicare Part B billing code for a subsequent Annual Wellness Visit (AWV), defined by CMS as \"annual wellness visit, includes a personalized prevention plan of service (PPPS), subsequent visit.\" It is billed after a patient has already received an initial AWV (G0438) and at least 12 months have elapsed since that first visit.","inLanguage":"nl-NL"},"inLanguage":"nl-NL"},{"@type":"Question","@id":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860419","position":2,"url":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860419","name":"What is the difference between G0438 and G0439?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"G0438 is the initial Annual Wellness Visit code, used once per lifetime for a Medicare beneficiary who has never had an AWV. G0439 is the subsequent AWV code, used for every annual visit after that first one. G0439 cannot be billed if G0438 has not yet been used for that patient.","inLanguage":"nl-NL"},"inLanguage":"nl-NL"},{"@type":"Question","@id":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860420","position":3,"url":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860420","name":"When can G0439 be billed after G0438?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"G0439 can be billed on or after the first day of the month that is 12 months after the month G0438 was provided. For example, if G0438 was billed on March 15, 2024, G0439 is eligible on April 1, 2025 - not March 15, 2025. Billing before this date results in denial.","inLanguage":"nl-NL"},"inLanguage":"nl-NL"},{"@type":"Question","@id":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860421","position":4,"url":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860421","name":"Can G0439 be billed on the same day as an E&amp;M visit?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, with conditions. An E&amp;M code can be billed on the same day as G0439 when a separately identifiable medical problem is addressed and clearly documented in a distinct note. Modifier 25 must be appended to the E&amp;M code. Without Modifier 25, the E&amp;M claim will be bundled and denied.","inLanguage":"nl-NL"},"inLanguage":"nl-NL"},{"@type":"Question","@id":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860422","position":5,"url":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860422","name":"What ICD-10 codes should be paired with G0439?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Z00.00 (encounter for general adult medical examination without abnormal findings) or Z00.01 (with abnormal findings) are the standard first-listed diagnosis codes for G0439 claims. Chronic condition codes (hypertension, diabetes) may be listed as secondary diagnoses but must not be listed first, as this can trigger a medical-visit reclassification and cost-sharing application.","inLanguage":"nl-NL"},"inLanguage":"nl-NL"},{"@type":"Question","@id":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860423","position":6,"url":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860423","name":"What is the Medicare reimbursement rate for G0439?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The national average non-facility Medicare reimbursement for G0439 is approximately $137.61 per visit under the 2026 Physician Fee Schedule, with geographic adjustment factors causing variation by MAC region. No patient deductible or coinsurance applies when the visit is billed correctly as a standalone preventive service. Verify your region's current rate using the CMS Physician Fee Schedule lookup tool.","inLanguage":"nl-NL"},"inLanguage":"nl-NL"},{"@type":"Question","@id":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860424","position":7,"url":"https:\/\/pabau.com\/nl\/procedure-codes\/hcpcs-code-g0439\/#faq-question-1784274860424","name":"What modifiers apply to HCPCS code G0439?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"G0439 itself does not require a modifier for standalone billing. Modifier 25 is required on the accompanying E&amp;M code (not on G0439) when both are billed on the same date of service. No other modifiers are routinely required for G0439 in standard Medicare fee-for-service billing.","inLanguage":"nl-NL"},"inLanguage":"nl-NL"}]}},"yoast":{"focus_keyword":"HCPCS code G0439","seo_title":"HCPCS code G0439: Billing guide to prevent claim denials","meta_description":"G0439 is Medicare's subsequent Annual Wellness Visit code, reimbursed around $137.61 per visit under the 2026 PFS with no cost-sharing.","content_score":"30","is_cornerstone":"","related_keyphrases":[{"keyword":"annual wellness visit billing","score":72},{"keyword":"g0438 cpt code","score":61},{"keyword":"Medicare preventive visit","score":61}]},"_links":{"self":[{"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/posts\/158002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/users\/77"}],"replies":[{"embeddable":true,"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/comments?post=158002"}],"version-history":[{"count":3,"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/posts\/158002\/revisions"}],"predecessor-version":[{"id":182684,"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/posts\/158002\/revisions\/182684"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/media\/158000"}],"wp:attachment":[{"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/media?parent=158002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/categories?post=158002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pabau.com\/nl\/wp-json\/wp\/v2\/tags?post=158002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}