{"id":175765,"date":"2026-08-12T12:43:54","date_gmt":"2026-08-12T12:43:54","guid":{"rendered":"https:\/\/pabau.com\/?p=175765"},"modified":"2026-08-12T13:26:29","modified_gmt":"2026-08-12T13:26:29","slug":"icd-10-code-v7949xs","status":"publish","type":"post","link":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/","title":{"rendered":"ICD-10 code V79.49XS: Driver of bus injured in collision, sequela"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"ICD-10 code V79.49XS: Driver of bus injured in collision with other motor vehicles, sequela\",\"description\":\"ICD-10 code V79.49XS covers the driver of a bus injured in a collision with other motor vehicles in a traffic accident (sequela). Billable FY2026 code, effective October 1, 2025.\",\"url\":\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-v7949xs\/\",\"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\":\"2025-10-15\",\"dateModified\":\"2026-08-12\"}<\/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>ICD-10 code V79.49XS covers a bus driver injured in a collision with other motor vehicles, billed for the late effects of that crash.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>The code is billable and specific, valid on FY2026 claims since October 1, 2025.<\/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>Sequence the residual condition first and V79.49XS second, because an external cause code never leads a 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=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>The 7th character S applies only after the original injury has healed, so a nonunion still counts as subsequent care.<\/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>Leave place of occurrence and activity codes off a sequela claim, since those belong to the initial encounter.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\">ICD-10 code V79.49XS is the external cause code for a bus driver injured in a collision with other motor vehicles in traffic. You report it when the visit treats a late effect of that crash, not the crash itself.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That distinction is where claims come unstuck. The 7th character S fits only once the original injury has healed, and the code never travels alone on a claim form. Miss either detail and the claim comes back.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"ICD-10 Revisions: Stay Updated or Fall Behind\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/bqAyb-BCA0w?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 id=\"h-what-icd-10-code-v79-49xs-covers-and-when-it-s-billable\" class=\"wp-block-heading\">What ICD-10 code V79.49XS covers and when it&rsquo;s billable<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V79.49XS is a billable, specific ICD-10-CM code and it is valid on FY2026 claims. The 2026 edition took effect on October 1, 2025, per the <a href=\"https:\/\/www.cms.gov\/medicare\/coding-billing\/icd-10-codes\" target=\"_blank\" rel=\"nofollow noopener\">CMS ICD-10 codes page<\/a>. It can be reported on inpatient, outpatient, and physician claims.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The official description reads: <strong>Driver of bus injured in collision with other motor vehicles in traffic accident, sequela.<\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Two facts are baked into that wording. The patient was driving, and the crash happened in traffic, which in ICD-10-CM means on a public highway.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The code lives in the external causes of morbidity chapter, V00-Y99, inside the bus occupant block V70-V79. Everything else about it follows from those two facts and one letter at the end.<\/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\/diagnostic_codes\/icd-10-code-v7949xs\/automate-claims-through-healthcode.webp\" alt=\"Automate claims and billing with Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Pabau, our practice management platform, keeps the diagnosis code with the invoice, so a sequela claim goes out with its coding intact.<\/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<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\">Attribute<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Detail<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">V79.49XS<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Full description<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Driver of bus injured in collision with other motor vehicles in traffic accident, sequela<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Billable\/specific<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Effective date<\/td>\n<td style=\"padding:12px 16px;color:#374151\">October 1, 2025 (FY2026 edition)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Code type<\/td>\n<td style=\"padding:12px 16px;color:#374151\">External cause of morbidity (V00-Y99)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">POA exempt<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes. External cause codes are exempt from Present on Admission reporting<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Sequencing<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Secondary only. The residual condition is reported first<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h2 id=\"h-what-the-7th-character-s-tells-the-payer\" class=\"wp-block-heading\">What the 7th character S tells the payer<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">It tells the payer the crash is history and the visit is about what the crash left behind. V79.49 is incomplete on its own, so the code stays invalid and unbillable until a 7th character is added.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The X in the sixth position is a placeholder, not a code choice. V79.49 has no fifth or sixth character of its own, so the X holds the space and keeps S in the seventh slot.<\/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\">7th character<\/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\">Full 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\">Encounter 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\">When to use it<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">A<\/td>\n<td style=\"padding:12px 16px;color:#374151\">V79.49XA<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Initial encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Active treatment of the injury, such as the emergency visit, surgery, or first fracture care<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">D<\/td>\n<td style=\"padding:12px 16px;color:#374151\">V79.49XD<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Routine care while the injury heals, such as a cast change or a medication review<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S<\/td>\n<td style=\"padding:12px 16px;color:#374151\">V79.49XS<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Treatment of a residual problem that remains after the original crash injury has healed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">The record has to show which phase of care the patient is in, which is a job for <a href=\"https:\/\/pabau.com\/features\/medical-records-management\/\">clinical documentation<\/a> rather than the coder&rsquo;s judgment. Mixing up D and S is the error to watch, because both look identical in a note that never mentions injury status.<\/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\/diagnostic_codes\/icd-10-code-v7949xs\/comprehensive-emr-patient-record-management.webp\" alt=\"Comprehensive EMR and patient record management in Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&rsquo;s client records hold the full injury history, so you can see whether the crash injury has healed before choosing D or S.<\/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 id=\"h-sequela-subsequent-or-initial-let-the-healing-decide\" class=\"wp-block-heading\">Sequela, subsequent, or initial? Let the healing decide<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Healing status picks the 7th character, not the calendar. If the crash injury has healed and a residual problem remains, S is the right letter. If the injury is still healing, it is not.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Take a bus driver who comes in six months after a multi-vehicle collision. Her fractured ribs healed months ago, but she now has lumbar pain and post-traumatic headaches that started with the crash. Those residuals are sequelae, so the external cause code is V79.49XS.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>V79.49XA<\/strong> covers active treatment of the crash injury, from the emergency visit through the first round of fracture care.<\/li>\n\n\n\n<li><strong>V79.49XD<\/strong> covers routine care while that injury heals, such as a cast change, a wound check, or a medication review.<\/li>\n\n\n\n<li><strong>V79.49XS<\/strong> covers a residual problem being treated after the original injury has healed.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">No guideline sets a waiting period, so elapsed time alone never turns a condition into a sequela. A fracture that has not knitted makes the point. Nonunion is still subsequent care, coded like <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s52262k\/\">S52.262K<\/a>, and the external cause code stays on D.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practices that see a lot of collision follow-up, <a href=\"https:\/\/pabau.com\/industry\/chiropractic-software\/\">chiropractic practices<\/a> in particular, face this call every week. A <a href=\"https:\/\/pabau.com\/blog\/patient-care-management\/\">patient care management<\/a> routine that records injury status at each visit turns it into a five-second decision.<\/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>Record injury status in the chart at every visit. A crash injury that is still healing points to the D character. One that healed with a residual problem points to the S character. That single habit prevents most 7th character errors on external cause claims.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-how-the-code-is-built-from-chapter-to-7th-character\" class=\"wp-block-heading\">How the code is built, from chapter to 7th character<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V79.49XS sits at the bottom of a six-level structure, and the levels above it set the rules it inherits. Excludes notes and instructions cascade down from the block and the category, so reading upward is part of coding it correctly.<\/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\">Level<\/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\">Code or range<\/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<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Chapter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">V00-Y99<\/td>\n<td style=\"padding:12px 16px;color:#374151\">External causes of morbidity<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Block<\/td>\n<td style=\"padding:12px 16px;color:#374151\">V70-V79<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bus occupant injured in transport accident<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Category<\/td>\n<td style=\"padding:12px 16px;color:#374151\">V79<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bus occupant injured in other and unspecified transport accidents<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Subcategory<\/td>\n<td style=\"padding:12px 16px;color:#374151\">V79.4<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Driver of bus injured in collision with other and unspecified motor vehicles in traffic accident<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Code (base)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">V79.49<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Driver of bus injured in collision with other motor vehicles in traffic accident. Needs a 7th character<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Billable code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">V79.49XS<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Driver of bus injured in collision with other motor vehicles in traffic accident, sequela<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">One row deserves a second look. V79.4 covers collisions with <strong>other and unspecified<\/strong> motor vehicles, and the fifth character splits those two ideas. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use V79.49 when the record names the other vehicle. Use V79.40 when the note simply says another vehicle was involved.<\/p>\n\n\n\n<h2 id=\"h-the-index-terms-that-lead-to-this-code\" class=\"wp-block-heading\">The index terms that lead to this code<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Coders arrive at V79.49XS from plain-language phrases, because charts rarely echo the code descriptor. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Knowing which phrases land here saves a trip through the tabular list. The <a href=\"https:\/\/icd10cmtool.cdc.gov\/\" target=\"_blank\" rel=\"nofollow noopener\">CDC coding tool<\/a> searches the same index if the wording in the note is unusual.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bus operator injured in a motor vehicle collision in traffic, late effect<\/li>\n\n\n\n<li>Motorcoach driver injured in a collision with another motor vehicle in traffic, sequela<\/li>\n\n\n\n<li>Driver of bus in a traffic accident with another motor vehicle, sequela<\/li>\n\n\n\n<li>Late effect of a bus driver&rsquo;s injury from a multi-vehicle traffic collision<\/li>\n\n\n\n<li>Residual condition following a bus driver&rsquo;s traffic collision<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Watch what the other vehicle was, because that detail moves the code out of V79 entirely. If the note names a car, a pick-up truck, or a van, the bus occupant codes sit in the V73 family instead. A sport utility vehicle counts there too. V79.4 is for other and unspecified motor vehicles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One more piece of vocabulary. \u00ab\u00a0Late effect\u00a0\u00bb in older documentation means the same thing as \u00ab\u00a0sequela\u00a0\u00bb in ICD-10-CM. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Both point to a residual condition left behind after the acute phase resolved. Rehabilitation notes in a <a href=\"https:\/\/pabau.com\/industry\/physical-therapy-emr\/\">physical therapy practice<\/a> still use the older phrase regularly.<\/p>\n\n\n\n<h2 id=\"h-which-excludes-notes-apply-and-which-don-t\" class=\"wp-block-heading\">Which excludes notes apply, and which don&rsquo;t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Only one Excludes1 note above this code changes what you may report. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The V70-V79 block excludes a minibus, which is classified with pick-up trucks and vans in V50-V59. Everything else you may have heard about excludes notes here needs checking.<\/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\/diagnostic_codes\/icd-10-code-v7949xs\/medical-forms-new-medical-form-with-components-2x.webp\" alt=\"Pabau digital medical form with question components\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&rsquo;s digital forms capture how the crash happened at intake, which is the detail that decides between a traffic and a nontraffic code.<\/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\">\n<li><strong>Includes (V70-V79):<\/strong> motorcoach. A motorcoach injury belongs in this block, so the wording in the chart does not have to say \u00ab\u00a0bus\u00a0\u00bb.<\/li>\n\n\n\n<li><strong>Excludes1 (V70-V79):<\/strong> minibus, classified to V50-V59. Excludes1 means the two are never reported together for the same event.<\/li>\n\n\n\n<li><strong>Traffic and nontraffic:<\/strong> separate subcategories, not an excludes rule. V79.0 to V79.3 cover nontraffic events and V79.4 to V79.9 cover traffic events.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">So the traffic decision is a selection choice rather than a restriction. A crash either happened on a public highway or it did not, and the subcategory follows. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Other vehicle families work the same way, which is how a nontraffic sequela such as <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-v8654xs\/\">V86.54XS<\/a> ends up in a different block.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nothing stops V79.49XS from sitting next to the code for the residual condition. The guidelines actually require that pairing, which is where most of the claim trouble starts.<\/p>\n\n\n\n<h2 id=\"h-the-claim-needs-two-codes-in-this-order\" class=\"wp-block-heading\">The claim needs two codes, in this order<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The residual condition goes first and V79.49XS goes second. An external cause code explains how an injury happened, so it never carries the medical necessity for the visit. On its own it tells a payer nothing about what was treated.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That order comes from Section I.C.20.i of the <a href=\"https:\/\/www.cms.gov\/files\/document\/fy-2026-icd-10-cm-coding-guidelines.pdf\" target=\"_blank\" rel=\"nofollow noopener\">ICD-10-CM Official Guidelines<\/a>, the sequela guidance inside the external cause chapter.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>First:<\/strong> the code for the residual condition being treated today. Cervicalgia, M54.2, and post-traumatic headache, G44.309, are common choices, and cervical spondylosis with radiculopathy would be M47.22.<\/li>\n\n\n\n<li><strong>Second:<\/strong> V79.49XS, which records the crash that caused the residual condition.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">When the residual is itself an injury code, it carries its own 7th character. A residual after a lumbar sprain is reported as <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s338xxs\/\">S33.8XXS<\/a> first, then V79.49XS. A healed wrist fracture that still causes trouble works the same way, coded as <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s62032s\/\">S62.032S<\/a>. A residual coded as a condition, such as cervicalgia, has no 7th character at all.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Two code groups stay off a sequela claim. Place of occurrence codes (Y92), activity codes (Y93), and the external cause status code (Y99) are reported once, at the initial encounter. They are not used for sequelae.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On the claim itself, V79.49XS is an additional diagnosis rather than a billed target. Service lines point at the residual condition, since that is the diagnosis a payer reads for medical necessity. V79.49XS supplies the backstory that supports it.<\/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>Never send V79.49XS on its own. It always follows the code for the residual condition being treated. A claim carrying only the external cause code comes back as a rejection or a medical necessity denial. Reworking it costs more than coding it right the first time.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-before-you-submit-a-quick-check\" class=\"wp-block-heading\">Before you submit: A quick check<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Seven checks catch nearly every problem this code creates. Run them before the claim leaves the practice.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The note says the original crash injury has healed, and names the residual being treated today.<\/li>\n\n\n\n<li>The residual condition is the first-listed diagnosis, with V79.49XS sitting after it.<\/li>\n\n\n\n<li>The 7th character is S, and the placeholder X fills the sixth position.<\/li>\n\n\n\n<li>The other vehicle was not a car, a pick-up truck, or a van. Those collisions belong in V73.<\/li>\n\n\n\n<li>The crash happened on a public highway, which is what makes it a traffic accident.<\/li>\n\n\n\n<li>No place of occurrence, activity, or external cause status code rides along.<\/li>\n\n\n\n<li>Your state or your payer actually wants external cause codes, because no national mandate requires them.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Two mistakes show up more than the rest. The first is reporting V79.49XS beside a current injury code. The guidelines rule that out, because one visit cannot be both acute care and sequela care for the same injury.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The second is carrying S forward out of habit. A fracture that fails to knit is still subsequent care. So is a routine follow-up visit with no documented residual. Both sit in the healing phase rather than the late-effect phase.<\/p>\n\n\n\n<h2 id=\"h-sibling-codes-in-v79-worth-knowing\" class=\"wp-block-heading\">Sibling codes in V79 worth knowing<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The rest of the V79 family turns on two questions: who the patient was in the vehicle, and whether the crash was in traffic. Use the table as a cross-reference when the note answers those questions differently.<\/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\">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\">Billable<\/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\">V79.49XA<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Driver of bus injured in collision with other motor vehicles in traffic accident, initial encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">V79.49XD<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Driver of bus injured in collision with other motor vehicles in traffic accident, subsequent encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">V79.40XS<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Driver of bus injured in collision with unspecified motor vehicles in traffic accident, sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">V79.59XS<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Passenger on bus injured in collision with other motor vehicles in traffic accident, sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">V79.69XS<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unspecified bus occupant injured in collision with other motor vehicles in traffic accident, sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">V79.3XXS<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bus occupant (driver)(passenger) injured in unspecified nontraffic accident, sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Driver against passenger matters beyond the code set. Workers&rsquo; compensation and liability cases turn on the role in the record, so pick the code that matches where the patient was sitting. V79.3XXS covers either role, but only for a nontraffic event.<\/p>\n\n\n\n<h2 id=\"h-how-pabau-keeps-the-code-the-note-and-the-claim-together\" class=\"wp-block-heading\">How Pabau keeps the code, the note, and the claim together<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Most sequencing errors start life as a documentation problem. The coder cannot tell from the note whether the crash injury healed. So the 7th character becomes a guess, and payers send guesses back.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pabau.com\/blog\/practice-management-software\/\">Practice management software<\/a> like Pabau keeps the treatment note, the injury history, and the invoice on one client record. Nothing gets re-keyed between a clinical system and a billing system. So the detail that decides D or S is on screen at the moment the code is picked.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pabau.com\/features\/patient-intake-software\/\">Digital intake forms<\/a> capture how the accident happened in the patient&rsquo;s own words. That is the same detail that separates a traffic code from a nontraffic one. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pabau.com\/features\/claims-management-software\/\">Claims management<\/a> then bills from the record the clinician wrote in. The crash story travels with the claim rather than being rebuilt from memory months later.<\/p>\n\n\n        <div id=\"book_a_demo\">\n            <div class=\"left-side\">\n                <div class=\"logo\">\n                    <img decoding=\"async\"\n                        src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Logo.svg\"\n                        alt=\"Logo\"\n                        loading=\"lazy\"\n                    \/>\n                <\/div>\n\n                <h3 class=\"heading\">\n                    Keep diagnosis codes with the note that earns them                <\/h3>\n\n                <p class=\"description\">\n                    Pabau holds client records, treatment notes, and invoicing in one system, so the injury detail behind a 7th character never has to be reconstructed. See how documentation and claims work together in a live demo.                <\/p>\n\n                <div class=\"button-group\">\n                    <a href=\"\/book-demo\/\" class=\"btn btn-scale-effect btn-cta-color btn-md\">\n                        <span class=\"btn-text\">Book a demo<\/span>\n                        <div class=\"btn-icon btn-icon-right\" aria-hidden=\"true\">\n                            <svg\n                                width=\"14\"\n                                height=\"12\"\n                                viewBox=\"0 0 14 12\"\n                                fill=\"none\"\n                                xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                            >\n                                <path\n                                    d=\"M0.75 4.77295C0.335786 4.77295 0 5.10874 0 5.52295C0 5.93716 0.335786 6.27295 0.75 6.27295V5.52295V4.77295ZM13.2803 6.05328C13.5732 5.76039 13.5732 5.28551 13.2803 4.99262L8.50736 0.219648C8.21447 -0.073245 7.73959 -0.073245 7.4467 0.219648C7.15381 0.512542 7.15381 0.987415 7.4467 1.28031L11.6893 5.52295L7.4467 9.76559C7.15381 10.0585 7.15381 10.5334 7.4467 10.8263C7.73959 11.1191 8.21447 11.1191 8.50736 10.8263L13.2803 6.05328ZM0.75 5.52295V6.27295L12.75 6.27295V5.52295V4.77295L0.75 4.77295V5.52295Z\"\n                                    fill=\"currentColor\"\n                                ><\/path>\n                            <\/svg>\n                        <\/div>\n                    <\/a>\n                <\/div>\n            <\/div>\n\n            <div class=\"right-side\">\n                <img decoding=\"async\"\n                    src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Home-Page-Concept-4.webp\"\n                    alt=\"Pabau practice management platform\"\n                    loading=\"lazy\"\n                \/>\n            <\/div>\n        <\/div>\n        \n\n\n<h2 id=\"h-conclusion\" class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The 7th character is a documentation decision before it is a coding decision. Once a note states plainly that the crash injury healed and names what it left behind, S is easy to defend and easy to audit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Two habits keep V79.49XS out of the denial pile. Sequence the residual condition first, and record injury status at every visit. <a href=\"https:\/\/pabau.com\/book-demo\/\">Book a demo<\/a> to see how Pabau keeps treatment notes, diagnosis codes, and claims on the same record.<\/p>\n\n\n        <div id=\"expert_picks\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/11\/Expert-Picks.svg\" alt=\"Continue your research\" height=\"42\" width=\"42\">\n                                <h3>Continue your research<\/h3>\n            <\/div>\n            <div class=\"content\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Coding a nontraffic sequela instead?<\/strong> <a href=\\u0022https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-v8654xs\/\\u0022>V86.54XS<\/a> shows how the nontraffic side of external cause coding is handled.<\/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 sequencing rules for a residual sprain?<\/strong> <a href=\\u0022https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s338xxs\/\\u0022>S33.8XXS<\/a> covers billing, sequencing, and the denials that follow a late effect.<\/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>Not sure whether a fracture counts as healed?<\/strong> <a href=\\u0022https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s52262k\/\\u0022>S52.262K<\/a> explains why nonunion stays in the subsequent encounter phase.<\/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>Looking for a nature-of-sequela example to sequence first?<\/strong> <a href=\\u0022https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s62032s\/\\u0022>S62.032S<\/a> walks through a healed wrist fracture with a residual problem.<\/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>Want the same 7th character outside road traffic?<\/strong> <a href=\\u0022https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-v9021xs\/\\u0022>V90.21XS<\/a> applies sequela rules to a water transport accident.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-frequently-asked-questions\" class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1786446759712\"><h3 class=\"schema-faq-question\">Is reporting V79.49XS mandatory?<\/h3> <p class=\"schema-faq-answer\">No. There is no national requirement to report external cause codes. Report V79.49XS when your state has a reporting mandate, or when the payer asks for it. Auto and workers&rsquo; compensation carriers usually do.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786446759713\"><h3 class=\"schema-faq-question\">Can V79.49XS be the first-listed diagnosis?<\/h3> <p class=\"schema-faq-answer\">No. An external cause code is never first-listed or principal. The residual condition being treated takes that slot, and V79.49XS follows it as an additional diagnosis.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786446759714\"><h3 class=\"schema-faq-question\">Do place of occurrence and activity codes go with it?<\/h3> <p class=\"schema-faq-answer\">No. Y92, Y93, and Y99 codes are assigned at the initial encounter only. A sequela claim carries the residual condition and the external cause code, and nothing else from Chapter 20.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786446759715\"><h3 class=\"schema-faq-question\">How long can V79.49XS stay on claims?<\/h3> <p class=\"schema-faq-answer\">For as long as the residual condition is treated, since no guideline sets an end date. The record has to keep tying that condition back to the crash, so causation stays documented at each visit.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786446759716\"><h3 class=\"schema-faq-question\">Does the claim need the accident date?<\/h3> <p class=\"schema-faq-answer\">Usually yes for auto and workers&rsquo; compensation claims. Those payers want the date of the original accident on the claim, since V79.49XS alone does not prove causation.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786446759717\"><h3 class=\"schema-faq-question\">Does a follow-up visit with no residual use V79.49XS?<\/h3> <p class=\"schema-faq-answer\">No. Routine follow-up on a healing injury takes the subsequent encounter character. Use S only when a late effect is documented and treated at that visit.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>ICD-10 code V79.49XS covers the late effects of a bus driver&rsquo;s collision injury. Read more for the 7th character test, sequencing order, and claim checks.<\/p>\n","protected":false},"author":85,"featured_media":175761,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"89","_yoast_wpseo_content_score":"90","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[1433,1549,1550],"tags":[1163],"class_list":["post-175765","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-billing-codes","category-diagnostic-codes","category-icd-10-cm","tag-medical-billing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>ICD-10 code V79.49XS: Sequela coding and claim rules<\/title>\n<meta name=\"description\" content=\"Discover ICD-10 code V79.49XS, including 7th character rules, sequencing order, late effects, and claim checks for bus collision injuries.\" \/>\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\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ICD-10 code V79.49XS: Sequela coding and claim rules\" \/>\n<meta property=\"og:description\" content=\"Discover ICD-10 code V79.49XS, including 7th character rules, sequencing order, late effects, and claim checks for bus collision injuries.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/\" \/>\n<meta property=\"og:site_name\" content=\"Pabau\" \/>\n<meta property=\"article:publisher\" 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injuries.\",\"mainEntity\":[{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759712\"},{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759713\"},{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759714\"},{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759715\"},{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759716\"},{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759717\"}],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#primaryimage\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/icd-10-code-v7949xs.webp\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/icd-10-code-v7949xs.webp\",\"width\":1200,\"height\":630},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#website\",\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/\",\"name\":\"Pabau\",\"description\":\"Clinic 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Today\",\"publisher\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/pabau.com\\\/fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#organization\",\"name\":\"Pabau\",\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/Logo-4-e1654525062364.png\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/Logo-4-e1654525062364.png\",\"width\":736,\"height\":195,\"caption\":\"Pabau\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/Pabau\\\/\",\"https:\\\/\\\/x.com\\\/pabaucrm\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/pabau-ltd\\\/\",\"https:\\\/\\\/www.instagram.com\\\/pabausoftware\\\/\"],\"description\":\"Pabau 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\\\/fr\\\/#\\\/schema\\\/person\\\/5763062f66fccbf75a390f99ee0b985a\",\"name\":\"Monika Lazarevska\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/cropped-Monika-Lazarevska-skala-2-1-e1783430903842-1-96x96.jpg\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/cropped-Monika-Lazarevska-skala-2-1-e1783430903842-1-96x96.jpg\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/cropped-Monika-Lazarevska-skala-2-1-e1783430903842-1-96x96.jpg\",\"caption\":\"Monika Lazarevska\"},\"description\":\"Monika Lazarevska writes content for owners and healthcare professionals who want clear, no-fluff content that actually helps them run their practice better. With a background in storytelling and SEO, she knows how to make even the driest topics worth reading. Off the clock, you'll find her in a caf\u00e9 somewhere in Europe, probably with a good book and an even better coffee.\",\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/blog\\\/author\\\/monika-lazarevska\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759712\",\"position\":1,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759712\",\"name\":\"Is reporting V79.49XS mandatory?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. There is no national requirement to report external cause codes. Report V79.49XS when your state has a reporting mandate, or when the payer asks for it. Auto and workers' compensation carriers usually do.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759713\",\"position\":2,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759713\",\"name\":\"Can V79.49XS be the first-listed diagnosis?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. An external cause code is never first-listed or principal. The residual condition being treated takes that slot, and V79.49XS follows it as an additional diagnosis.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759714\",\"position\":3,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759714\",\"name\":\"Do place of occurrence and activity codes go with it?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Y92, Y93, and Y99 codes are assigned at the initial encounter only. A sequela claim carries the residual condition and the external cause code, and nothing else from Chapter 20.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759715\",\"position\":4,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759715\",\"name\":\"How long can V79.49XS stay on claims?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For as long as the residual condition is treated, since no guideline sets an end date. The record has to keep tying that condition back to the crash, so causation stays documented at each visit.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759716\",\"position\":5,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759716\",\"name\":\"Does the claim need the accident date?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Usually yes for auto and workers' compensation claims. Those payers want the date of the original accident on the claim, since V79.49XS alone does not prove causation.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759717\",\"position\":6,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-v7949xs\\\/#faq-question-1786446759717\",\"name\":\"Does a follow-up visit with no residual use V79.49XS?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Routine follow-up on a healing injury takes the subsequent encounter character. 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Auto and workers' compensation carriers usually do.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/#faq-question-1786446759713","position":2,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/#faq-question-1786446759713","name":"Can V79.49XS be the first-listed diagnosis?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. An external cause code is never first-listed or principal. The residual condition being treated takes that slot, and V79.49XS follows it as an additional diagnosis.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/#faq-question-1786446759714","position":3,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/#faq-question-1786446759714","name":"Do place of occurrence and activity codes go with it?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. Y92, Y93, and Y99 codes are assigned at the initial encounter only. A sequela claim carries the residual condition and the external cause code, and nothing else from Chapter 20.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/#faq-question-1786446759715","position":4,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/#faq-question-1786446759715","name":"How long can V79.49XS stay on claims?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"For as long as the residual condition is treated, since no guideline sets an end date. The record has to keep tying that condition back to the crash, so causation stays documented at each visit.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/#faq-question-1786446759716","position":5,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-v7949xs\/#faq-question-1786446759716","name":"Does the claim need the accident date?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Usually yes for auto and workers' compensation claims. 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