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    OpenPayerBilling CodesIncision Procedures on the Neck (Soft Tissues) and ThoraxCPT cpt-21501-deep-neck-chest-incision-drainage
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    CPT 21501: Incision and Drainage, Deep Neck or Chest

    Medicare pays $535 on average nationally for this procedure.

    CPT code 21501 describes an incision and drainage of a deep abscess, hematoma, or infected pocket in the neck or chest performed to relieve pain and pressure; the procedure is a surgical incision and drainage service usually delivered in an operating room, emergency department, or procedure suite depending on clinical urgency and depth of tissue involvement.

    For related coverage guidance, see recent payer policy updates: Surgical Procedures, Outpatient Surgical Procedures - Site of Service, Site of Service Ambulatory Service Center (ASC) Select — Surgical or Diagnostic Procedures in Adults.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult presenting to the emergency department or an outpatient surgical clinic with acute neck or anterior chest wall pain, swelling, tenderness, erythema, and fluctuance after trauma, infected central line, or spread of cellulitis. Imaging (ultrasound or CT) identifies a localized deep collection (hematoma or abscess) in the deep tissues of the neck or upper chest. The provider (general surgeon, otolaryngologist, or emergency physician) performs an incision and drainage of the deep soft tissue collection under local anesthesia with or without conscious sedation, obtains cultures, evacuates purulent or bloody material, may place a drain, and prescribes antibiotics and follow-up for wound care. The clinical workflow includes initial evaluation, imaging to define extent and depth, informed consent, procedural preparation (sterile field, appropriate anesthesia), performance of the deep tissue incision and drainage (21501), specimen handling for culture, documentation of procedure details (site, depth, anesthesia, drains placed), and post-procedure instructions and follow-up.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    10160Incision and drainage, finger, or toe; simplePerformed for superficial digital abscesses; may be used for more distal or superficial soft tissue infections when 21501 is not applicable
    20610Arthrocentesis, aspiration and/or injection; major joint or bursa (e.g., shoulder, hip)Used when chest/neck collection involves a deep bursal space or joint aspiration is required in differential diagnosis
    10060Incision and drainage of abscess; simple or singleUsed for superficial abscesses not requiring deep tissue exploration; contrasts with deep tissue code 21501
    20000Debridement, open, complex; chest wall, neckUsed when extensive debridement of soft tissue or fasciotomy is required in addition to incision and drainage
    77012CT guidance for biopsy, aspiration, or drainageUsed when imaging guidance (CT) is required to access a deep neck or chest collection prior to or during 21501

    Related Modifiers

    10 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…
    24Modifier 24 denotes an unrelated evaluation and management (E/M) service performed by the same physician or qualified healthcare professional during a postoperative global period. Per CPT guidance,…- Use modifier 24 when you report an evaluation and management (E/M) service performed by the same physician or same-specialty group during a procedure’s postoperative global period that is unrelated…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207P00000X
    208D00000X
    207L00000X
    208000000X
    2865M2000X
    207VF0040X
    163WH0200X
    146L00000X

    Related ICD-10-CM Codes

    28 rows

    ICD-10-CM CodeDescription
    A41.9Sepsis, unspecified organism
    A48.3Toxic shock syndrome
    B96.89Other specified bacterial agents as the cause of diseases classified elsewhere
    C77.0Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck
    C77.1Secondary and unspecified malignant neoplasm of intrathoracic lymph nodes
    C77.2Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodes
    I82.409Acute embolism and thrombosis of unspecified deep veins of unspecified lower extremity
    I83.10Varicose veins of unspecified lower extremity with inflammation
    J36Peritonsillar abscess
    J39.0Retropharyngeal and parapharyngeal abscess

    Showing 1–10 of 28

    Related Payer Policy Updates

    Specialty: General Surgery1 / 3

    10 rows

    PolicyPayerEffective Date
    Surgical ProceduresUnitedHealthcare2026-09-01
    Outpatient Surgical Procedures - Site of ServiceUnitedHealthcare2026-09-01
    Site of Service Ambulatory Service Center (ASC) Select — Surgical or Diagnostic Procedures in AdultsPremera Bluecross2026-09-01
    Site of Service Ambulatory Surgical Center (ASC) Select — Surgical or Diagnostic Procedures in AdultsPremera Bluecross2026-09-01
    Site of Service Ambulatory Service Center (ASC) SelectPremera Bluecross2026-09-01
    Site of Service Ambulatory Surgical Center (ASC) Select — Site of Service for Ambulatory Surgical Procedures (ASC Select)Premera Bluecross2026-09-01
    Site of Service Ambulatory Service Center (ASC) SelectPremera Bluecross2026-09-01
    Outpatient Surgical Procedures - Site of Servicesierra health and life2026-08-01
    Medical Necessity Guidelines — Inpatient Surgical CareMass General Brigham Health Plan2026-08-01
    Ambulatory Surgery Center (ASC) - Site of Care PolicyKaiser Permanente2026-08-01

    Related Codes

    CPT-21502-DEEP-NECK-CHEST-INCISION-DRAINAGE-WITH-RIB-RESECTION

    CPT 21502: Incision and Drainage with Rib Resection

    CPT-21510-CHEST-BONE-CORTICAL-INCISION-DECOMPRESSION-DRAINAGE

    CPT 21510: Open Cortical Incision of Chest Bone for Osteomyelitis

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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