{"id":170746,"date":"2026-07-31T13:52:36","date_gmt":"2026-07-31T13:52:36","guid":{"rendered":"https:\/\/pabau.com\/?p=170746"},"modified":"2026-08-17T12:01:22","modified_gmt":"2026-08-17T12:01:22","slug":"hcpcs-code-g0008","status":"publish","type":"post","link":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/","title":{"rendered":"HCPCS Code G0008: Influenza vaccine administration billing guide"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"HCPCS Code G0008: Influenza vaccine administration billing guide\",\"description\":\"Guide to HCPCS Code G0008, the Medicare Part B code for influenza vaccine administration: the 2026 national rate of $34.62, paired vaccine product codes, diagnosis codes, billing rules, and common errors.\",\"url\":\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0008\/\",\"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\":\"2026-07-30\",\"dateModified\":\"2026-08-03\"}<\/script>\n\n\n        <div id=\"key_takeaways\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/12\/Key-Takeaways-Icon.svg\" alt=\"Key takeaways\" height=\"42\" width=\"42\">\n                                <h3>Key takeaways<\/h3>\n            <\/div>\n            <div class=\"list\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>HCPCS Code G0008 covers the administration of an influenza virus vaccine under Medicare Part B, not the vaccine product itself.<\/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>Submit G0008 on the same claim as an eligible vaccine product code such as 90658, 90686, or 90656. Submitting it alone is the most common denial cause.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>ICD-10 Z23 is the required primary diagnosis code, and no patient deductible or coinsurance applies under Medicare Part B.<\/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 2026 national Medicare payment rate for G0008 is $34.62 per administration, before any locality adjustment.<\/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 pairs administration and product codes automatically, so fewer G0008 claims are denied after submission.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\">HCPCS Code G0008 covers the administration of an influenza virus vaccine to a Medicare Part B beneficiary. It pays for giving the shot, not for the vaccine itself. The vaccine product always needs its own code on the same claim.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The 2026 national payment rate is $34.62 per administration, and the patient owes no deductible or coinsurance. This guide covers the paired product codes, the required diagnosis code, place of service rules, and the errors behind most G0008 denials.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">HCPCS Code G0008: definition and clinical use<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Official description:<\/strong> HCPCS Code G0008 covers the administration of an influenza virus vaccine. The code captures the act of administering the vaccine, not the vaccine product itself. Both must appear on the same Medicare Part B claim.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">According to the <a href=\"https:\/\/www.cms.gov\/medicare\/coding-billing\/healthcare-common-procedure-system\" target=\"_blank\" rel=\"nofollow noopener\">Centers for Medicare and Medicaid Services (CMS)<\/a>, G0008 is a HCPCS Level II code in the G-code range. That range covers Medicare-specific services with no CPT equivalent. G0008 applies only to Medicare Part B beneficiaries and cannot be used on commercial claims.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Code type:<\/strong> HCPCS Level II (G-code)<\/li><li><strong>Payer:<\/strong> Medicare Part B only<\/li><li><strong>Service covered:<\/strong> Administration of influenza virus vaccine<\/li><li><strong>What is not covered:<\/strong> The vaccine product itself, which is billed separately<\/li><li><strong>Assignment:<\/strong> Provider must accept Medicare assignment<\/li><li><strong>Cost-sharing:<\/strong> No patient deductible or coinsurance<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">G0008 vs CPT 90471: key differences<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">G0008 and CPT 90471 are not interchangeable for influenza vaccine administration. Using 90471 on a Medicare Part B flu shot claim results in a denial.<\/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\">Factor<\/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\">HCPCS Code G0008<\/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 90471<\/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\">Payer<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Medicare Part B only<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Commercial payers (non-Medicare)<\/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 category<\/td>\n<td style=\"padding:12px 16px;color:#374151\">HCPCS Level II<\/td>\n<td style=\"padding:12px 16px;color:#374151\">CPT (AMA)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Vaccine type<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Influenza only<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Any immunization (first injection)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Cost-sharing<\/td>\n<td style=\"padding:12px 16px;color:#374151\">No deductible or coinsurance<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Per plan terms<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Assignment<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Mandatory<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Per payer contract<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Practices billing both Medicare and commercial payers have to hold two sets of code rules at once. That is where errors multiply, because a coder working mostly commercial claims reaches for 90471 out of habit. A workflow gate that confirms payer type before code selection prevents it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2026 Medicare reimbursement rate for G0008<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The 2026 national Medicare payment rate for G0008 is $34.62 per administration. CMS publishes that amount in its <a href=\"https:\/\/www.cms.gov\/medicare\/payment\/part-b-drugs\/vaccine-pricing\" target=\"_blank\" rel=\"nofollow noopener\">vaccine pricing<\/a> update for claims dated January 1 through December 31, 2026. Your Medicare Administrative Contractor (MAC) republishes the same figure with locality adjustments, so check the <a href=\"https:\/\/www.cms.gov\/medicare\/physician-fee-schedule\/search\/overview\" target=\"_blank\" rel=\"nofollow noopener\">Physician Fee Schedule<\/a> before billing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Three reimbursement rules apply regardless of locality:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>No patient deductible applies. Medicare Part B waives the annual Part B deductible for influenza vaccine administration.<\/li><li>No coinsurance applies. The standard 20% patient coinsurance is not collected for this service.<\/li><li>Providers must accept assignment. Billing the beneficiary above the Medicare-approved amount is prohibited.<\/li><\/ul>\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>Before flu season starts, pull your MAC&#8217;s locality-specific G0008 rate from the CMS Physician Fee Schedule. Then confirm your practice management system reflects the updated amount. A discrepancy caught in July prevents revenue leakage across hundreds of administrations in October and November.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\">Comparing the <a href=\"https:\/\/pabau.com\/blog\/best-primary-care-ehr\/\">best EHRs for primary care<\/a> matters here, since G-code services live or die on documentation quality.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vaccine product codes that pair with G0008<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">G0008 must appear on the same claim as the vaccine product code. The product code identifies which influenza vaccine was administered. CMS publishes an annual influenza vaccine policy article listing every eligible product code, and that list changes as new formulations are approved.<\/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\">Product 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\">Vaccine 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\">Notes<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">90658<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Trivalent, split virus, 0.5 mL (ages 3+)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Standard seasonal formulation<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">90686<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Quadrivalent, split virus, 0.5 mL (ages 3+)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Most commonly administered formulation<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">90661<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Trivalent, cell culture derived, subunit, 0.5 mL<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Cell-based ccIIV3, preservative and antibiotic free<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">90674<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Quadrivalent, cell culture derived, subunit, 0.5 mL<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Cell-based ccIIV4, the quadrivalent counterpart to 90661<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">90656<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Trivalent, split virus, 0.5 mL, preservative free<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Preservative-free formulation<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">90662<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Split virus, preservative free, increased antigen content, 0.7 mL<\/td>\n<td style=\"padding:12px 16px;color:#374151\">High-dose formulation for adults aged 65 and over<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Verify the current-year list before each flu season. A product code dropped from the Medicare-approved list will be denied even when G0008 itself is correct. The same pairing discipline applies to other preventive services.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practices serving mostly older patients. Check which formulations your ordering pattern actually covers before the season starts.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Diagnosis codes required when billing G0008<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ICD-10-CM code Z23 (encounter for immunization) is the required primary diagnosis code on G0008 claims. MAC guidance consistently identifies Z23 as the correct pairing. Submitting no diagnosis code, or an influenza illness code instead, results in a denial.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Secondary diagnosis codes can be appropriate in specific clinical contexts, such as a high-risk condition that influenced the vaccination decision. They supplement Z23 rather than replace it. The Z-code category covers encounters for preventive services where no illness is being treated, which is exactly a routine flu shot visit.<\/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\">Role on claim<\/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\">Z23<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Encounter for immunization<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Required primary diagnosis<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Z87.01<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Personal history of pneumonia<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Secondary only, if clinically applicable<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Z79.899<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Other long-term drug therapy, including immunosuppressants<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Secondary only, if clinically applicable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h2 class=\"wp-block-heading\">Medicare billing guidelines for G0008<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CMS and MAC contractors publish detailed billing instructions for G0008. The rules below reflect guidance from Palmetto GBA and CGS Medicare, two of the largest MAC jurisdictions. Check your own MAC for jurisdiction-specific variations.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Same-claim submission:<\/strong> G0008 and the vaccine product code must appear on the same claim. Separate claims for the administration and the product get one or both denied.<\/li><li><strong>Mandatory assignment:<\/strong> Providers must accept Medicare assignment for this service. Billing the patient above the Medicare-approved amount violates assignment rules.<\/li><li><strong>No cost-sharing collection:<\/strong> Do not collect a deductible or coinsurance from the beneficiary. Doing so is a compliance violation.<\/li><li><strong>Same-day E\/M visit:<\/strong> G0008 may be billed on the same day as an evaluation and management (E\/M) visit when the E\/M is separately identifiable. Confirm current NCCI edit status before billing both on one date of service.<\/li><li><strong>Claim form:<\/strong> Submit on the CMS-1500 form, or its electronic equivalent 837P, with the correct place of service code.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Digital intake and digital forms remove the paper trail that creates audit exposure.<\/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-g0008\/customizable-consent-and-intake-forms.webp\" alt=\"Customizable consent and intake forms\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s customizable intake and consent forms capture the vaccine details your G0008 claim needs, so nothing is missing at submission.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:35px;width:800px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Place of service codes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The place of service (POS) code must reflect where the vaccine was administered. An incorrect POS code is a common source of claim processing delays.<\/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\">POS 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\">Setting<\/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\">11<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Office<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">01<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Pharmacy<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">32<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Nursing facility<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">99<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Other or unclassified, such as a mobile unit or community event<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h2 class=\"wp-block-heading\">Common billing errors with G0008<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">MAC audit data and <a href=\"https:\/\/www.aapc.com\/codes\/hcpcs-codes-range\/\" target=\"_blank\" rel=\"nofollow noopener\">AAPC coding guidance<\/a> highlight the same G0008 error patterns year after year. Each one is preventable.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Missing vaccine product code:<\/strong> Submitting G0008 without a paired product code on the same claim. This is the most frequent denial cause.<\/li><li><strong>Using CPT 90471 instead of G0008:<\/strong> CPT 90471 is for commercial payers. Medicare Part B requires G0008.<\/li><li><strong>Wrong or missing diagnosis code:<\/strong> Omitting Z23, or substituting an influenza illness code such as J10 or J11 for a preventive encounter.<\/li><li><strong>Collecting patient cost-sharing:<\/strong> Collecting a deductible or coinsurance for this service violates CMS policy and can trigger a compliance review.<\/li><li><strong>Incorrect POS code:<\/strong> Billing POS 11 when the vaccine was given at a nursing facility or a pharmacy.<\/li><li><strong>Out-of-date product code:<\/strong> Using a product code no longer on the current CMS influenza vaccine list. CMS updates that list annually.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Related vaccine administration codes: G0009 and G0010<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">G0008 sits in a three-code family covering Medicare Part B preventive vaccine administration. Practices offering several vaccine types.<\/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\">Vaccine 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\">Payer<\/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\">Typical diagnosis code<\/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\">G0008<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Influenza virus vaccine<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Medicare Part B<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Z23<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">G0009<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Pneumococcal vaccine<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Medicare Part B<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Z23<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">G0010<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Hepatitis B vaccine<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Medicare Part B<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Z23<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">All three share the same cost-sharing waiver and mandatory assignment rules. Each needs a paired vaccine product code on the same claim. The only difference is the vaccine type, which is why the hepatitis B guidance under <a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0010\/\">G0010<\/a> reads almost identically.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How practice management software streamlines flu vaccine billing<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Flu season compresses hundreds of vaccine administrations into six to eight weeks. Manual code entry at that volume creates denial patterns that take months to unwind. Practice management software like Pabau closes those paths off with built-in claims management, so every claim is checked before it leaves your building.<\/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-g0008\/automate-claims-through-healthcode.webp\" alt=\"Automate claims and billing with Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s claims management sends flu vaccine claims out with the administration and product codes already paired.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:35px;width:800px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Automatic code pairing:<\/strong> The system links G0008 to the product code documented in the patient record before the claim is assembled.<\/li><li><strong>Diagnosis code validation:<\/strong> Claim scrubbing flags anything missing Z23 or carrying an incompatible diagnosis code.<\/li><li><strong>Payer routing:<\/strong> Medicare Part B claims route to G0008 and commercial claims route to CPT 90471, with no manual selection.<\/li><li><strong>POS code capture:<\/strong> The practice location or off-site event setting pre-populates the POS code from the appointment record.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pabau&#8217;s vaccination management tools log lot numbers, injection sites, and administering staff against the appointment. That record supports the code you billed when a MAC asks for documentation. It also keeps immunization histories in one place from one season to the next.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pabau&#8217;s automated workflows run claim scrubbing before submission rather than after a denial. The medical forms layer captures the clinical documentation that supports correct coding at the point of care.<\/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-g0008\/appointment-scheduling-in-pabau.webp\" alt=\"Appointment scheduling in Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s appointment scheduling records the visit setting, which pre-populates the place of service code on the G0008 claim.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:35px;width:800px\" 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 G0008 denial rate at the close of each flu season. If more than 2% of G0008 claims are denied, categorize the reason codes. Missing product code and wrong diagnosis account for over 80% of denials in most practices. Fixing those two error types with workflow automation pays for itself within one flu season.<\/p>\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-g0101\/\">HCPCS G0101 \u2014 Medicare billing for pelvic and breast exams<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0103\/\">HCPCS Code G0103 \u2014 Prostate cancer screening PSA<\/a><\/li>\n<\/ul>\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                    Stop losing flu season revenue to G0008 denials                <\/h3>\n\n                <p class=\"description\">\n                    Pabau&#8217;s claims management software pairs vaccine administration codes with product codes automatically and flags a missing diagnosis code before submission. See how it handles your flu season volume.                <\/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\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">G0008 is a simple code with an unforgiving claim structure. Almost every denial traces back to the pairing rules rather than to a hard coding judgment. Fix the pairing in the system and the denial rate falls on its own.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The work worth doing before October is checking your locality rate and your product code list against the current CMS figures. Everything after that is a workflow decision you only have to make once.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pabau.com\/book-demo\/\">Book a demo<\/a> to see how Pabau pairs vaccine codes, validates Z23, and routes Medicare claims automatically through flu season.<\/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 another Medicare G-code?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0168\/\">G0168<\/a> covers wound closure by tissue adhesive and follows the same Part B claim structure.<\/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>Pairing a drug with its administration code?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-j0190\/\">J0190<\/a> shows how a product code and an administration code sit together on one claim.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Coding supplies used during a visit?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-a4234\/\">A4234<\/a> walks through supply-code billing and the documentation that has to support it.<\/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 other Medicare preventive services?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0104\/\">G0104<\/a> covers screening flexible sigmoidoscopy, another service with waived patient cost-sharing.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Need the prostate screening equivalent?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/hcpcs-code-g0103\/\">G0103<\/a> covers the screening PSA test and the Medicare frequency limits that apply to it.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<h2 class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1785497211708\"><h3 class=\"schema-faq-question\">What is HCPCS Code G0008 used for?<\/h3> <p class=\"schema-faq-answer\">HCPCS Code G0008 is the Medicare Part B code for administering an influenza virus vaccine. It covers the administration service only. The vaccine product is billed separately with an eligible product code, such as 90658, 90686, or 90656, on the same claim.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497211709\"><h3 class=\"schema-faq-question\">What is the difference between G0008 and CPT 90471?<\/h3> <p class=\"schema-faq-answer\">G0008 is a HCPCS Level II code used only for Medicare Part B influenza vaccine administration. CPT 90471 is the immunization administration code for commercial payers. Using 90471 on a Medicare Part B claim results in a denial, so the two are not interchangeable.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497211714\"><h3 class=\"schema-faq-question\">How much does Medicare pay for G0008 in 2026?<\/h3> <p class=\"schema-faq-answer\">The 2026 national Medicare payment rate for G0008 is $34.62 per administration. Your MAC applies a locality adjustment, so the amount you actually receive can differ from the national figure.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497211710\"><h3 class=\"schema-faq-question\">What diagnosis code is used with G0008?<\/h3> <p class=\"schema-faq-answer\">ICD-10-CM Z23, encounter for immunization, is the required primary diagnosis code for G0008. Secondary codes reflecting a high-risk condition can be added, but they never replace Z23 as the primary.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497211711\"><h3 class=\"schema-faq-question\">Does Medicare reimburse G0008 without patient cost-sharing?<\/h3> <p class=\"schema-faq-answer\">Yes. Medicare Part B waives both the annual deductible and the 20% coinsurance for influenza vaccine administration under G0008. Providers must accept assignment and cannot bill the beneficiary for any cost-sharing amount.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497211712\"><h3 class=\"schema-faq-question\">What are the most common billing errors with G0008?<\/h3> <p class=\"schema-faq-answer\">The two most frequent denial causes are submitting G0008 without a paired vaccine product code, and using CPT 90471 on a Medicare claim. Other errors include omitting Z23, collecting patient cost-sharing, and using a product code that CMS has dropped.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785497211713\"><h3 class=\"schema-faq-question\">Can G0008 be billed on the same day as an E\/M visit?<\/h3> <p class=\"schema-faq-answer\">G0008 may be billed on the same date as an evaluation and management visit when the E\/M is separately identifiable. Verify current National Correct Coding Initiative (NCCI) edit status with your MAC first, because bundling edits change annually.<\/p> <\/div> <\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>HCPCS Code G0008 covers the administration of an influenza virus vaccine to a Medicare Part B beneficiary. It pays for giving the shot, not for the vaccine itself. The vaccine product always needs its own code on the same claim. The 2026 national payment rate is $34.62 per administration, and the patient owes no deductible [&hellip;]<\/p>\n","protected":false},"author":81,"featured_media":170744,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"","_yoast_wpseo_content_score":"90","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[1433,1548],"tags":[1582,2395,3044,1092],"class_list":["post-170746","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-billing-codes","category-hcpcs","tag-hcpcs","tag-medicare-billing","tag-medicare-part-b","tag-vaccine-management"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>HCPCS Code G0008: 2026 rate and billing rules<\/title>\n<meta name=\"description\" content=\"G0008 covers flu vaccine administration under Medicare Part B and pays $34.62 in 2026. It must share a claim with the vaccine product code.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HCPCS Code G0008: 2026 rate and billing rules\" \/>\n<meta property=\"og:description\" content=\"G0008 covers flu vaccine administration under Medicare Part B and pays $34.62 in 2026. It must share a claim with the vaccine product code.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/\" \/>\n<meta property=\"og:site_name\" content=\"Pabau\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Pabau\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-31T13:52:36+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-17T12:01:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/07\/hcpcs-code-g0008.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Aleksandar Kochovski\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@pabaucrm\" \/>\n<meta name=\"twitter:site\" content=\"@pabaucrm\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Aleksandar Kochovski\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\u00a0Minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/\"},\"author\":{\"name\":\"Aleksandar Kochovski\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/#\\\/schema\\\/person\\\/73b672a49e20bfba8161e3c17ee3dda2\"},\"headline\":\"HCPCS Code G0008: Influenza vaccine administration billing guide\",\"datePublished\":\"2026-07-31T13:52:36+00:00\",\"dateModified\":\"2026-08-17T12:01:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/\"},\"wordCount\":1900,\"publisher\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/hcpcs-code-g0008.webp\",\"keywords\":[\"Hcpcs\",\"Medicare Billing\",\"Medicare Part B\",\"vaccine management\"],\"articleSection\":[\"Billing Codes\",\"HCPCS\"],\"inLanguage\":\"de\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/\",\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/\",\"name\":\"HCPCS Code G0008: 2026 rate and billing rules\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/hcpcs-code-g0008.webp\",\"datePublished\":\"2026-07-31T13:52:36+00:00\",\"dateModified\":\"2026-08-17T12:01:22+00:00\",\"description\":\"G0008 covers flu vaccine administration under Medicare Part B and pays $34.62 in 2026. 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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\\\/de\\\/#\\\/schema\\\/person\\\/73b672a49e20bfba8161e3c17ee3dda2\",\"name\":\"Aleksandar Kochovski\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-aleksandar-kochovski-profile-picture-96x96.jpeg\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-aleksandar-kochovski-profile-picture-96x96.jpeg\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-aleksandar-kochovski-profile-picture-96x96.jpeg\",\"caption\":\"Aleksandar Kochovski\"},\"description\":\"Aleksandar is a content strategist and editor working in tech publishing, with a background in higher education. He specializes in topics around compliance in software solutions. When he's not writing at Pabau, you can find him tending to his bonsai collection or hitting the gym.\",\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/blog\\\/author\\\/aleksandar-kochovski\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211708\",\"position\":1,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211708\",\"name\":\"What is HCPCS Code G0008 used for?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"HCPCS Code G0008 is the Medicare Part B code for administering an influenza virus vaccine. It covers the administration service only. The vaccine product is billed separately with an eligible product code, such as 90658, 90686, or 90656, on the same claim.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211709\",\"position\":2,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211709\",\"name\":\"What is the difference between G0008 and CPT 90471?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"G0008 is a HCPCS Level II code used only for Medicare Part B influenza vaccine administration. CPT 90471 is the immunization administration code for commercial payers. Using 90471 on a Medicare Part B claim results in a denial, so the two are not interchangeable.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211714\",\"position\":3,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211714\",\"name\":\"How much does Medicare pay for G0008 in 2026?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The 2026 national Medicare payment rate for G0008 is $34.62 per administration. Your MAC applies a locality adjustment, so the amount you actually receive can differ from the national figure.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211710\",\"position\":4,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211710\",\"name\":\"What diagnosis code is used with G0008?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"ICD-10-CM Z23, encounter for immunization, is the required primary diagnosis code for G0008. Secondary codes reflecting a high-risk condition can be added, but they never replace Z23 as the primary.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211711\",\"position\":5,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211711\",\"name\":\"Does Medicare reimburse G0008 without patient cost-sharing?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Medicare Part B waives both the annual deductible and the 20% coinsurance for influenza vaccine administration under G0008. Providers must accept assignment and cannot bill the beneficiary for any cost-sharing amount.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211712\",\"position\":6,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211712\",\"name\":\"What are the most common billing errors with G0008?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The two most frequent denial causes are submitting G0008 without a paired vaccine product code, and using CPT 90471 on a Medicare claim. Other errors include omitting Z23, collecting patient cost-sharing, and using a product code that CMS has dropped.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211713\",\"position\":7,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/hcpcs-code-g0008\\\/#faq-question-1785497211713\",\"name\":\"Can G0008 be billed on the same day as an E\\\/M visit?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"G0008 may be billed on the same date as an evaluation and management visit when the E\\\/M is separately identifiable. Verify current National Correct Coding Initiative (NCCI) edit status with your MAC first, because bundling edits change annually.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"HCPCS Code G0008: 2026 rate and billing rules","description":"G0008 covers flu vaccine administration under Medicare Part B and pays $34.62 in 2026. It must share a claim with the vaccine product code.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/","og_locale":"de_DE","og_type":"article","og_title":"HCPCS Code G0008: 2026 rate and billing rules","og_description":"G0008 covers flu vaccine administration under Medicare Part B and pays $34.62 in 2026. 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He specializes in topics around compliance in software solutions. When he's not writing at Pabau, you can find him tending to his bonsai collection or hitting the gym.","url":"https:\/\/pabau.com\/de\/blog\/author\/aleksandar-kochovski\/"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211708","position":1,"url":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211708","name":"What is HCPCS Code G0008 used for?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"HCPCS Code G0008 is the Medicare Part B code for administering an influenza virus vaccine. It covers the administration service only. The vaccine product is billed separately with an eligible product code, such as 90658, 90686, or 90656, on the same claim.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211709","position":2,"url":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211709","name":"What is the difference between G0008 and CPT 90471?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"G0008 is a HCPCS Level II code used only for Medicare Part B influenza vaccine administration. CPT 90471 is the immunization administration code for commercial payers. Using 90471 on a Medicare Part B claim results in a denial, so the two are not interchangeable.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211714","position":3,"url":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211714","name":"How much does Medicare pay for G0008 in 2026?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The 2026 national Medicare payment rate for G0008 is $34.62 per administration. Your MAC applies a locality adjustment, so the amount you actually receive can differ from the national figure.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211710","position":4,"url":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211710","name":"What diagnosis code is used with G0008?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"ICD-10-CM Z23, encounter for immunization, is the required primary diagnosis code for G0008. Secondary codes reflecting a high-risk condition can be added, but they never replace Z23 as the primary.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211711","position":5,"url":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211711","name":"Does Medicare reimburse G0008 without patient cost-sharing?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. Medicare Part B waives both the annual deductible and the 20% coinsurance for influenza vaccine administration under G0008. Providers must accept assignment and cannot bill the beneficiary for any cost-sharing amount.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211712","position":6,"url":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211712","name":"What are the most common billing errors with G0008?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The two most frequent denial causes are submitting G0008 without a paired vaccine product code, and using CPT 90471 on a Medicare claim. Other errors include omitting Z23, collecting patient cost-sharing, and using a product code that CMS has dropped.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211713","position":7,"url":"https:\/\/pabau.com\/de\/procedure-codes\/hcpcs-code-g0008\/#faq-question-1785497211713","name":"Can G0008 be billed on the same day as an E\/M visit?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"G0008 may be billed on the same date as an evaluation and management visit when the E\/M is separately identifiable. Verify current National Correct Coding Initiative (NCCI) edit status with your MAC first, because bundling edits change annually.","inLanguage":"de"},"inLanguage":"de"}]}},"yoast":{"focus_keyword":"HCPCS Code G0008","seo_title":"HCPCS Code G0008: 2026 rate and billing rules","meta_description":"G0008 covers flu vaccine administration under Medicare Part B and pays $34.62 in 2026. 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