{"id":183265,"date":"2026-08-18T08:30:24","date_gmt":"2026-08-18T08:30:24","guid":{"rendered":"https:\/\/pabau.com\/?p=183265"},"modified":"2026-08-18T08:30:27","modified_gmt":"2026-08-18T08:30:27","slug":"cpt-code-21602","status":"publish","type":"post","link":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-21602\/","title":{"rendered":"CPT code 21602: Chest wall tumor excision billing guide"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"CPT Code 21602: Chest wall tumor excision with rib resection\",\"description\":\"CPT code 21602 covers excision of chest wall tumor involving rib(s), with plastic reconstruction, without mediastinal lymphadenectomy. Billing guide for 2026.\",\"url\":\"https:\/\/pabau.com\/procedure-codes\/cpt-code-21602\/\",\"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\/\"}}<\/script>\n\n\n        <div id=\"key_takeaways\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/12\/Key-Takeaways-Icon.svg\" alt=\"Key takeaways\" height=\"42\" width=\"42\">\n                                <h3>Key takeaways<\/h3>\n            <\/div>\n            <div class=\"list\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>CPT code 21602 describes excision of a chest wall tumor involving rib(s), with plastic reconstruction, without mediastinal lymphadenectomy.<\/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>Reconstruction is what separates 21602 from sibling code 21601, and lymphadenectomy status separates it from 21603.<\/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>A paired ICD-10-CM diagnosis code is required on the claim. Pairing the wrong one is a common audit trigger.<\/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>CPT 21602 is a facility code with a 90-day global period, so routine post-operative visits are already paid for.<\/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>Claims management software like Pabau validates every claim before it is sent, so missing details surface early.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\"><strong>CPT code 21602<\/strong> describes the excision of a chest wall tumor involving rib(s), with plastic reconstruction, without mediastinal lymphadenectomy. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It sits in the Excision Procedures on the Neck (Soft Tissues) and Thorax subsection, which runs from 21550 to 21630. That subsection belongs to the musculoskeletal section of the American Medical Association&#8217;s CPT code set.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Three components define this code precisely. The tumor has to involve rib bone rather than soft tissue alone, and the resection has to be followed by chest wall reconstruction. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No mediastinal lymph node dissection can be performed in the same session. Each component is a billing decision point, and missing one in documentation shifts the claim to a sibling code.<\/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\">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\">CPT code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">21602<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Short descriptor<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Excision chest wall tumor, rib(s) with reconstruction<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Full descriptor<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Excision of chest wall tumor involving rib(s), with plastic reconstruction, without mediastinal lymphadenectomy<\/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 section<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Musculoskeletal System, Excision Procedures on the Neck (Soft Tissues) and Thorax<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Surgical setting<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Facility (hospital or ASC)<\/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 type<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Surgical CPT, Category I<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Global period<\/td>\n<td style=\"padding:12px 16px;color:#374151\">90 days (major surgery)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"CPT Coding Pitfalls Every Medical Practice Faces\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/vbvV5okdXKg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 id=\"h-procedure-description-for-cpt-code-21602\" class=\"wp-block-heading\">Procedure description for CPT code 21602<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This procedure is a full-thickness resection of the chest wall where a tumor has invaded rib bone. Surgeons remove the affected rib segment along with any involved soft tissue. They then close the defect using mesh, flap repair, or prosthetic material. <a href=\"https:\/\/pabau.com\/industry\/plastic-surgery-emr\/\">Plastic surgery practices<\/a> and thoracic teams need documentation that names each component to support the code.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Clinical indications fall into three groups. Primary chest wall malignancies such as sarcomas and chondrosarcomas qualify, as do secondary malignancies invading from adjacent structures. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Benign tumors qualify when their size or structural involvement forces a rib resection. &#8222;Without mediastinal lymphadenectomy&#8220; means no node dissection of the mediastinal compartment happened in the same session.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Rib involvement required:<\/strong> Tumor must involve rib bone, not only soft tissue<\/li>\n\n\n\n<li><strong>Reconstruction required:<\/strong> Chest wall defect must be repaired with plastic reconstruction technique<\/li>\n\n\n\n<li><strong>No lymph node dissection:<\/strong> Mediastinal lymphadenectomy not performed in the same session<\/li>\n\n\n\n<li><strong>Primary or secondary malignancy:<\/strong> Both are valid indications; documentation must specify diagnosis<\/li>\n\n\n\n<li><strong>Benign tumors with rib involvement:<\/strong> Eligible when size or structural invasion requires rib resection and reconstruction<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-cpt-21601-vs-21602-vs-21603-choosing-the-right-sibling-code\" class=\"wp-block-heading\">CPT 21601 vs 21602 vs 21603: Choosing the right sibling code<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Miscoding between 21601, 21602, and 21603 is one of the most common errors in thoracic surgery billing. All three share the same base procedure, chest wall tumor excision involving rib. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They differ on two binary factors, reconstruction and mediastinal lymphadenectomy. Getting either one wrong means billing for a procedure that wasn&#8217;t performed.<\/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\">Plastic reconstruction<\/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\">Mediastinal lymphadenectomy<\/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\">Use when<\/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\">21601<\/td>\n<td style=\"padding:12px 16px;color:#374151\">No<\/td>\n<td style=\"padding:12px 16px;color:#374151\">No<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Tumor excised with rib; defect closed primarily, no reconstruction<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">21602<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<td style=\"padding:12px 16px;color:#374151\">No<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Tumor excised with rib; chest wall reconstructed; no lymph node dissection<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">21603<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Tumor excised with rib; chest wall reconstructed; mediastinal lymphadenectomy performed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">The operative report must document reconstruction explicitly. A surgeon may close the defect with mesh or a flap and never write the words &#8222;plastic reconstruction.&#8220; That leaves billers with an ambiguous record, and an ambiguous record usually defaults to 21601. A note review before claim submission catches the pattern reliably.<\/p>\n\n\n\n<h2 id=\"h-icd-10-cm-codes-for-cpt-code-21602-diagnosis-crosswalk\" class=\"wp-block-heading\">ICD-10-CM codes for CPT code 21602: Diagnosis crosswalk<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CPT code 21602 requires a paired ICD-10-CM diagnosis code to establish medical necessity. Payers cross-reference the diagnosis against the procedure at adjudication; a mismatch triggers automatic denial. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use the <a href=\"https:\/\/www.aapc.com\/codify\/icd-10-crosswalk.aspx\" target=\"_blank\" rel=\"nofollow noopener\">AAPC CPT-to-ICD-10 crosswalk<\/a> to verify pairing coverage for your specific payer&#8217;s LCD. The table below lists the most commonly paired diagnosis codes.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">ICD-10-CM code<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Description<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Tumor type<\/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\">C41.3<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Malignant neoplasm of ribs, sternum and clavicle<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary malignancy<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">C49.3<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Malignant neoplasm of connective and soft tissue of thorax<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary malignancy (soft tissue)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">C78.1<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Secondary malignant neoplasm of mediastinum<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Secondary\/metastatic<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">C79.89<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Secondary malignant neoplasm of other specified sites<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Secondary\/metastatic<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">D16.7<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Benign neoplasm of ribs, sternum and clavicle<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Benign tumor<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">D21.3<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Benign neoplasm of connective and other soft tissue of thorax<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Benign (soft tissue)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Clinical documentation must support the ICD-10-CM code chosen. Pathology reports, imaging findings, and the surgeon&#8217;s assessment of malignant versus benign nature belong in the notes. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Auditors look for consistency between the diagnosis code and the clinical record. The same discipline applies in <a href=\"https:\/\/pabau.com\/industry\/dermatology-emr-software\/\">dermatology practices<\/a> billing soft tissue excisions.<\/p>\n\n\n\n<h2 id=\"h-medicare-reimbursement-for-cpt-code-21602\" class=\"wp-block-heading\">Medicare reimbursement for CPT code 21602<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Reimbursement for CPT code 21602 comes from the <a href=\"https:\/\/www.cms.gov\/medicare\/physician-fee-schedule\/search\/overview\" target=\"_blank\" rel=\"nofollow noopener\">CMS Medicare Physician Fee Schedule (MPFS)<\/a>. Two variables drive the number. One is place of service, facility versus non-facility. The other is your Geographic Practice Cost Index (GPCI) locality. Verify current figures in the live MPFS lookup before billing.<\/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\">Rate 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\">Setting<\/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\">Facility rate<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Hospital inpatient or outpatient, ASC<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Lower physician rate; facility billed separately for overhead<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Non-facility rate<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Office (uncommon for this code)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Higher physician rate; practice absorbs overhead costs<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">GPCI adjustment<\/td>\n<td style=\"padding:12px 16px;color:#374151\">All settings<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Locality multiplier applied to work, PE, and malpractice RVUs separately<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Private payer rates<\/td>\n<td style=\"padding:12px 16px;color:#374151\">All settings<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Negotiated separately; may be a multiplier of Medicare or a fixed contracted rate<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">CPT code 21602 is almost exclusively performed in a facility setting. Billing a non-facility place-of-service code (POS 11) for major reconstruction will almost certainly trigger a denial. Use POS 21 (inpatient hospital), POS 22 (outpatient hospital), or POS 24 (ASC) as appropriate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The code also carries a 90-day global period, which changes what you can bill afterwards. Routine post-operative visits inside that window are already paid for in the surgical fee. Billing them as separate office visits produces duplicate-service denials. Only care unrelated to the surgery is separately billable, with the appropriate modifier.<\/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>Verify CPT code 21602 reimbursement rates for your specific MAC locality using the CMS MPFS lookup before submitting claims. National averages can differ from your local GPCI-adjusted rate by 15-20%. Rates are updated annually. Bookmark the CMS fee schedule tool and run a verification each January.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-rvu-breakdown-for-cpt-21602\" class=\"wp-block-heading\">RVU breakdown for CPT 21602<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Relative Value Units (RVUs) determine how Medicare calculates payment. Three components apply here: work (wRVU), practice expense (PE RVU), and malpractice (MP RVU). Each is multiplied by its GPCI value, then by the annual conversion factor. Use the <a href=\"https:\/\/fastrvu.com\/tools\/rvu-lookup\" target=\"_blank\" rel=\"nofollow noopener\">FastRVU 2026 lookup tool<\/a> for current values in your locality.<\/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\">RVU component<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">What it covers<\/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\">GPCI applied<\/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\">Work RVU (wRVU)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Physician time, skill, and mental effort<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Work GPCI<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Practice expense RVU (PE RVU)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Staff, equipment, supplies (facility rate is lower)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">PE GPCI<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Malpractice RVU (MP RVU)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Professional liability insurance allocation<\/td>\n<td style=\"padding:12px 16px;color:#374151\">MP GPCI<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Total RVU<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Sum of all three components (GPCI-adjusted)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Used with conversion factor to calculate payment<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">The payment formula is (wRVU x Work GPCI) + (PE RVU x PE GPCI) + (MP RVU x MP GPCI), multiplied by the conversion factor. CMS publishes that factor in the final MPFS rule, released each November for the following year. Because 21602 carries significant wRVU weight, small GPCI differences produce meaningful payment variation between localities.<\/p>\n\n\n\n<h2 id=\"h-modifiers-for-cpt-code-21602\" class=\"wp-block-heading\">Modifiers for CPT code 21602<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Appending the correct modifier signals the billing context to payers and prevents automatic bundling denials. The table below lists modifiers applicable to CPT code 21602, based on standard NCCI and AMA modifier guidance. Always verify modifier applicability against your specific payer&#8217;s policies before submission.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Modifier<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Name<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">When to use<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-22<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Increased Procedural Services<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Procedure required substantially more time\/effort than typical; requires operative note documentation<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-51<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Multiple Procedures<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Additional procedures performed in the same session; apply to secondary codes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-62<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Two Surgeons<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Two surgeons of different specialties each perform distinct portions of the procedure<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-80<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Assistant Surgeon<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Qualified surgeon assists primary surgeon; reduced reimbursement applies<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-RT \/ -LT<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Right \/ Left Side<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Identifies laterality when relevant to the clinical scenario<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">NCCI bundling edits may combine 21602 with certain reconstruction or closure codes billed on the same claim. Before adding secondary codes, check the NCCI edit table for 21602 to confirm whether the combination requires a modifier or is a hard edit. Submitting unbundled codes without a valid modifier is a common audit finding for thoracic surgery claims.<\/p>\n\n\n\n<h2 id=\"h-cpt-code-21602-billing-guidelines-and-common-denial-patterns\" class=\"wp-block-heading\">CPT code 21602 billing guidelines and common denial patterns<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Billing CPT code 21602 successfully depends on the documentation elements lining up across the operative report, clinical record, and claim. Missing one element produces a preventable denial. For thoracic surgery billing, <a href=\"https:\/\/pabau.com\/features\/claims-management-software\/\">claims management software<\/a> checks those elements before a claim goes out, which manual review often skips.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cdn.pabau.com\/cdn\/attachments\/pulse\/content-engine\/billing_codes\/cpt-code-21602\/automate-claims-through-healthcode.webp\" alt=\"Pabau checkout screen with an insurer invoice and itemized amounts\"\/><figcaption class=\"wp-element-caption\"><em>Pabau attaches the insurer and policy to the invoice at checkout, so a claim leaves with the payer details already in place.<\/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>Document rib involvement explicitly:<\/strong> The note must state that the tumor involved rib(s), not that ribs were incidentally encountered. &#8222;Tumor adherent to and involving the third rib&#8220; works. &#8222;Adjacent to the rib&#8220; does not.<\/li>\n\n\n\n<li><strong>Name the reconstruction technique:<\/strong> Specify whether mesh, flap, prosthetic, or other material was used. &#8222;Primary closure&#8220; signals 21601, not 21602.<\/li>\n\n\n\n<li><strong>Confirm no mediastinal lymphadenectomy:<\/strong> If nodes were sampled but not formally dissected, say so in the note. Any documented mediastinal lymphadenectomy shifts the code to 21603.<\/li>\n\n\n\n<li><strong>Pre-authorization:<\/strong> Many commercial payers require <a href=\"https:\/\/pabau.com\/blog\/prior-authorization-process\/\">prior authorization<\/a> for chest wall resection with reconstruction. Confirm that before the procedure date.<\/li>\n\n\n\n<li><strong>Place of service:<\/strong> Use POS 21, 22, or 24. POS 11 does not match the complexity and will trigger an automated denial at most payers.<\/li>\n\n\n\n<li><strong>ICD-10-CM pairing:<\/strong> Match the diagnosis code to the pathology and the clinical record. Benign and malignant codes are not interchangeable. A mismatch is a top-five audit trigger.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For <a href=\"https:\/\/pabau.com\/blog\/hipaa-compliance-for-medical-offices\/\">HIPAA-compliant documentation<\/a>, store every operative report, pathology result, and pre-authorization record in the patient&#8217;s file before submission. Payers routinely request supporting documentation for surgical codes in the 21000-21999 range. Running <a href=\"https:\/\/pabau.com\/blog\/insurance-eligibility-verification\/\">eligibility verification<\/a> before the procedure date confirms the plan is active and the benefit applies.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Denial appeals for 21602 often hinge on reconstruction documentation. Say a claim comes back as &#8222;procedure not medically necessary&#8220; or &#8222;insufficient documentation.&#8220; Check first whether the operative note names the reconstruction technique and states the rib involvement. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pabau.com\/features\/patient-intake-software\/\">Digital clinical forms<\/a> with a structured field for reconstruction type settle that question 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\/cpt-code-21602\/digital-forms.webp\" alt=\"Pabau medical form template library with a patient-facing form preview\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s form builder turns pre-operative documentation into structured fields, so reconstruction type is recorded rather than left to free text.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:35px;width:800px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">A documentation checklist built into the pre-operative form captures every required billing element before the patient reaches the OR. That costs far less than rebuilding the record weeks later for an appeal. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pabau.com\/features\/compliance-management-software\/\">Compliance management<\/a> tools keep those records auditable, and a clear view of the <a href=\"https:\/\/pabau.com\/blog\/what-is-revenue-cycle-management\/\">revenue cycle<\/a> shows where high-value surgical claims stall.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"672\" height=\"474\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/03\/HIPAA-compliance-Pabau.webp\" alt=\"HIPAA compliance Pabau\" class=\"wp-image-129707\" srcset=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/03\/HIPAA-compliance-Pabau.webp 672w, https:\/\/pabau.com\/wp-content\/uploads\/2026\/03\/HIPAA-compliance-Pabau-300x212.webp 300w\" sizes=\"(max-width: 672px) 100vw, 672px\" \/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s security settings put two-factor authentication and HIPAA mode around the operative notes and pathology reports behind each 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\n<h2 id=\"h-how-practice-management-software-reduces-cpt-21602-billing-errors\" class=\"wp-block-heading\">How practice management software reduces CPT 21602 billing errors<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Thoracic surgery billing teams run into the same failure repeatedly. The surgeon documents a complex reconstruction, but the note uses language that doesn&#8217;t map cleanly to the 21602 criteria. By the time billing spots the ambiguity, the surgeon has moved on and the claim is already late.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practice management software like Pabau closes that loop earlier. Its <a href=\"https:\/\/pabau.com\/features\/automated-workflows-software\/\">automated workflows<\/a> keep the operative note, the insurer details, and the invoice in one record. Pabau then runs validation checks when you send a claim, and the send stays blocked until the details an insurer needs are present.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Validation before submission:<\/strong> Pabau checks the details an insurer requires, including authorization numbers, and blocks the send until they are present<\/li>\n\n\n\n<li><strong>One claim status view:<\/strong> Every claim sits in a single dashboard as pending, submitted, processing, paid, or error<\/li>\n\n\n\n<li><strong>Structured operative note templates:<\/strong> Fields for reconstruction type, rib involvement, and lymphadenectomy status live in the documentation workflow<\/li>\n\n\n\n<li><strong>Insurer details on the record:<\/strong> Policy and payer sit on the patient record, so each invoice routes to the right third party<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Practices running reconstructive cases alongside thoracic surgery can compare the options in our guide to <a href=\"https:\/\/pabau.com\/blog\/best-plastic-surgery-software\/\">plastic surgery software<\/a>. Three things matter for complex surgical billing. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You need claim validation, one place to see claim status, and documentation that lives with the patient record. Our rundown of <a href=\"https:\/\/pabau.com\/blog\/practice-management-software-features\/\">practice management features<\/a> covers the rest.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A unified record across <a href=\"https:\/\/pabau.com\/blog\/medical-forms-at-your-healthcare-practice\/\">clinical form types<\/a> also removes the transcription step where billing errors start. The pre-operative consent, the operative note, and the pathology report sit in the same patient record that feeds the claim.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When a denial does land, <a href=\"https:\/\/pabau.com\/blog\/denial-management-in-healthcare\/\">denial management<\/a> practice decides how fast you fix it, and <a href=\"https:\/\/pabau.com\/blog\/timely-filing-limits\/\">timely filing limits<\/a> decide whether you still can.<\/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                    Send surgical claims without the rework                <\/h3>\n\n                <p class=\"description\">\n                    Pabau keeps the operative note, insurer details, and invoice in one record, then validates each claim before it goes out. Every claim&#8217;s status sits in a single dashboard, so nothing stalls unnoticed.                <\/p>\n\n                <div class=\"button-group\">\n                    <a href=\"\/book-demo\/\" class=\"btn btn-scale-effect btn-cta-color btn-md\">\n                        <span class=\"btn-text\">Book a demo<\/span>\n                        <div class=\"btn-icon btn-icon-right\" aria-hidden=\"true\">\n                            <svg\n                                width=\"14\"\n                                height=\"12\"\n                                viewBox=\"0 0 14 12\"\n                                fill=\"none\"\n                                xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                            >\n                                <path\n                                    d=\"M0.75 4.77295C0.335786 4.77295 0 5.10874 0 5.52295C0 5.93716 0.335786 6.27295 0.75 6.27295V5.52295V4.77295ZM13.2803 6.05328C13.5732 5.76039 13.5732 5.28551 13.2803 4.99262L8.50736 0.219648C8.21447 -0.073245 7.73959 -0.073245 7.4467 0.219648C7.15381 0.512542 7.15381 0.987415 7.4467 1.28031L11.6893 5.52295L7.4467 9.76559C7.15381 10.0585 7.15381 10.5334 7.4467 10.8263C7.73959 11.1191 8.21447 11.1191 8.50736 10.8263L13.2803 6.05328ZM0.75 5.52295V6.27295L12.75 6.27295V5.52295V4.77295L0.75 4.77295V5.52295Z\"\n                                    fill=\"currentColor\"\n                                ><\/path>\n                            <\/svg>\n                        <\/div>\n                    <\/a>\n                <\/div>\n            <\/div>\n\n            <div class=\"right-side\">\n                <img decoding=\"async\"\n                    src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Home-Page-Concept-4.webp\"\n                    alt=\"Pabau claims management dashboard\"\n                    loading=\"lazy\"\n                \/>\n            <\/div>\n        <\/div>\n        \n\n\n<h2 id=\"h-conclusion\" class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CPT code 21602 turns on two variables that have to be right at the same time: reconstruction, and the absence of mediastinal lymphadenectomy. One wrong assumption sends the claim to 21601 or 21603, at a different payment level and with different documentation expectations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So the work sits upstream of billing, in the words the surgeon writes. A note that names the reconstruction technique and the rib involvement makes the code obvious to whoever reads it later. That is worth more than any appeal you can file.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Want the claim checked before it leaves your practice? <a href=\"https:\/\/pabau.com\/book-demo\/\">Book a demo<\/a> to see how Pabau validates surgical claims and keeps every status in one view.<\/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>Need the compliance rules behind surgical billing?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/medical-billing-compliance\/\">Medical billing compliance<\/a> sets out the laws, the common violations, and the checks that keep claims defensible.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Working through repeat surgical denials?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/denial-codes-in-medical-billing\/\">Denial codes in medical billing<\/a> explains the 20 most common reason codes and how to clear each one.<\/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 tissue diagnosis before you code?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-32408\/\">CPT code 32408<\/a> covers billing for a core needle biopsy of the lung or mediastinum.<\/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>Submitting claims electronically?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/medical-claims-clearinghouse\/\">Medical claims clearinghouse<\/a> explains what a clearinghouse does and what it checks before your claim reaches the payer.<\/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>Reconciling payments after a claim is paid?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/electronic-remittance-advice\/\">Electronic remittance advice<\/a> shows how to read an ERA and post it against the right invoice.<\/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-1786974819018\"><h3 class=\"schema-faq-question\">What is CPT code 21602?<\/h3> <p class=\"schema-faq-answer\">CPT code 21602 is a surgical procedure code describing excision of a chest wall tumor involving rib(s), with plastic reconstruction, without mediastinal lymphadenectomy. It applies when the tumor requires rib resection and the defect requires chest wall reconstruction. No mediastinal lymph node dissection can have been performed in the same session.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786974819019\"><h3 class=\"schema-faq-question\">What is the difference between CPT 21601 and CPT 21602?<\/h3> <p class=\"schema-faq-answer\">CPT 21601 covers excision of a chest wall tumor involving rib(s) without plastic reconstruction, while CPT 21602 adds plastic reconstruction of the chest wall defect. Both codes exclude mediastinal lymphadenectomy. Use 21601 when the defect closes primarily. Use 21602 when mesh, flap, or prosthetic reconstruction is required.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786974819020\"><h3 class=\"schema-faq-question\">What ICD-10-CM codes are used with CPT 21602?<\/h3> <p class=\"schema-faq-answer\">Commonly paired ICD-10-CM codes include C41.3 for malignant neoplasm of ribs, sternum and clavicle, and C49.3 for connective tissue of thorax. D16.7 covers benign neoplasm of ribs, while C78.1 and C79.89 cover secondary disease. The correct code depends on pathology confirmation and the clinical record. Incorrect pairing is a top audit trigger.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786974819021\"><h3 class=\"schema-faq-question\">Is CPT 21602 a facility or non-facility code?<\/h3> <p class=\"schema-faq-answer\">CPT code 21602 is billed in a facility setting (POS 21, 22, or 24) in virtually all cases. Chest wall tumor excision with rib resection and reconstruction does not belong in an office setting. Billing POS 11 triggers denial at most payers.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786974819022\"><h3 class=\"schema-faq-question\">What are the modifiers for CPT code 21602?<\/h3> <p class=\"schema-faq-answer\">Applicable modifiers include -22 for increased procedural services, -51 for multiple procedures in the same session, and -62 for co-surgery. Modifier -80 covers an assistant surgeon. Verify each one against NCCI edits and your payer&#8217;s policy before submission.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786974819023\"><h3 class=\"schema-faq-question\">What are the billing guidelines for CPT code 21602?<\/h3> <p class=\"schema-faq-answer\">The operative note must document rib involvement rather than proximity, name the reconstruction technique, and confirm that no mediastinal lymphadenectomy was performed. The claim needs the matching ICD-10-CM diagnosis code and a facility place-of-service code. Most commercial payers also require pre-authorization before the procedure date.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786974819024\"><h3 class=\"schema-faq-question\">What is the global period for CPT 21602?<\/h3> <p class=\"schema-faq-answer\">CPT 21602 carries a 90-day global period. Routine post-operative care inside those 90 days is included in the surgical payment. Only care unrelated to the surgery is separately billable, with the appropriate modifier.<\/p> <\/div> <\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>CPT code 21602 describes the excision of a chest wall tumor involving rib(s), with plastic reconstruction, without mediastinal lymphadenectomy. It sits in the Excision Procedures on the Neck (Soft Tissues) and Thorax subsection, which runs from 21550 to 21630. That subsection belongs to the musculoskeletal section of the American Medical Association&#8217;s CPT code set. Three [&hellip;]<\/p>\n","protected":false},"author":83,"featured_media":183262,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"89","_yoast_wpseo_content_score":"30","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[1433,1546],"tags":[1586,3499,2776],"class_list":["post-183265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-billing-codes","category-cpt-codes","tag-billing-guide","tag-cardiothoracic-billing","tag-cpt-coding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>CPT code 21602: Billing, modifiers, and 21601 vs 21603<\/title>\n<meta name=\"description\" content=\"Reconstruction is what separates CPT 21602 from 21601. The documentation, ICD-10 pairing and modifiers a clean claim needs.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-21602\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CPT code 21602: Billing, modifiers, and 21601 vs 21603\" \/>\n<meta property=\"og:description\" content=\"Reconstruction is what separates CPT 21602 from 21601. The documentation, ICD-10 pairing and modifiers a clean claim needs.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-21602\/\" \/>\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=\"2026-08-18T08:30:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-18T08:30:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/08\/cpt-code-21602.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=\"Anja Dodevska\" \/>\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=\"Anja Dodevska\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"12\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/\"},\"author\":{\"name\":\"Anja Dodevska\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/#\\\/schema\\\/person\\\/f2e43b25ed02313e8781f0f4507398b9\"},\"headline\":\"CPT code 21602: Chest wall tumor excision billing guide\",\"datePublished\":\"2026-08-18T08:30:24+00:00\",\"dateModified\":\"2026-08-18T08:30:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/\"},\"wordCount\":2405,\"publisher\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/cpt-code-21602.webp\",\"keywords\":[\"Billing Guide\",\"Cardiothoracic Billing\",\"CPT coding\"],\"articleSection\":[\"Billing Codes\",\"CPT Codes\"],\"inLanguage\":\"de\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/\",\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/\",\"name\":\"CPT code 21602: Billing, modifiers, and 21601 vs 21603\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/cpt-code-21602.webp\",\"datePublished\":\"2026-08-18T08:30:24+00:00\",\"dateModified\":\"2026-08-18T08:30:27+00:00\",\"description\":\"Reconstruction is what separates CPT 21602 from 21601. 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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\\\/f2e43b25ed02313e8781f0f4507398b9\",\"name\":\"Anja Dodevska\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-CE0C072E-91B7-4BB7-BD27-D1E3B38ED0CA-scaled-1-96x96.jpg\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-CE0C072E-91B7-4BB7-BD27-D1E3B38ED0CA-scaled-1-96x96.jpg\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-CE0C072E-91B7-4BB7-BD27-D1E3B38ED0CA-scaled-1-96x96.jpg\",\"caption\":\"Anja Dodevska\"},\"description\":\"Anja Dodevska writes about healthcare, dermatology, and the day-to-day realities of running a medical practice for Pabau. She enjoys breaking down complex topics into clear, accessible content and has a soft spot for the often-overlooked aspects of clinic life. When she's not writing, she's exploring cafes, walking her dog, or spending time with friends and family.\",\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/blog\\\/author\\\/anja-dodevska\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/#faq-question-1786974819018\",\"position\":1,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/#faq-question-1786974819018\",\"name\":\"What is CPT code 21602?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"CPT code 21602 is a surgical procedure code describing excision of a chest wall tumor involving rib(s), with plastic reconstruction, without mediastinal lymphadenectomy. It applies when the tumor requires rib resection and the defect requires chest wall reconstruction. No mediastinal lymph node dissection can have been performed in the same session.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/#faq-question-1786974819019\",\"position\":2,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/#faq-question-1786974819019\",\"name\":\"What is the difference between CPT 21601 and CPT 21602?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"CPT 21601 covers excision of a chest wall tumor involving rib(s) without plastic reconstruction, while CPT 21602 adds plastic reconstruction of the chest wall defect. Both codes exclude mediastinal lymphadenectomy. Use 21601 when the defect closes primarily. Use 21602 when mesh, flap, or prosthetic reconstruction is required.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/#faq-question-1786974819020\",\"position\":3,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/procedure-codes\\\/cpt-code-21602\\\/#faq-question-1786974819020\",\"name\":\"What ICD-10-CM codes are used with CPT 21602?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Commonly paired ICD-10-CM codes include C41.3 for malignant neoplasm of ribs, sternum and clavicle, and C49.3 for connective tissue of thorax. D16.7 covers benign neoplasm of ribs, while C78.1 and C79.89 cover secondary disease. The correct code depends on pathology confirmation and the clinical record. 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No mediastinal lymph node dissection can have been performed in the same session.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-21602\/#faq-question-1786974819019","position":2,"url":"https:\/\/pabau.com\/de\/procedure-codes\/cpt-code-21602\/#faq-question-1786974819019","name":"What is the difference between CPT 21601 and CPT 21602?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"CPT 21601 covers excision of a chest wall tumor involving rib(s) without plastic reconstruction, while CPT 21602 adds plastic reconstruction of the chest wall defect. Both codes exclude mediastinal lymphadenectomy. Use 21601 when the defect closes primarily. 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