Summary & Overview
CPT 17266: Destruction of Malignant Lesion on Trunk/Extremities >4.0 cm
CPT code 17266 identifies the destruction of a malignant cutaneous lesion on the trunk, arms, or legs when the lesion exceeds 4.0 cm in diameter. This procedural code captures services using chemosurgery, cryosurgery, electrosurgery, or other destructive techniques. Accurate use of the code affects clinical documentation, billing consistency, and national reporting for skin cancer interventions performed in ambulatory settings.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines payer coverage patterns, coding benchmarks, and relevant policy or documentation considerations that influence reimbursement and compliance for destructive procedures on malignant skin lesions.
Readers will find a concise clinical context for CPT code 17266, guidance on typical sites of service, and an overview of the types of benchmarks and policy updates addressed in the full publication. The content summarizes national implications for billing integrity and operational workflows when treating large malignant skin lesions in outpatient and ambulatory surgical environments. Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Billing Code Overview
CPT code 17266 describes destruction of a malignant lesion located on the trunk, arms, or legs using methods such as chemosurgery, cryosurgery, electrosurgery, or other destructive techniques. The code applies when the malignant lesion measures greater than 4.0 cm in diameter.
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Service type: Destruction of malignant cutaneous lesion
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Typical site of service: Outpatient dermatology or surgical clinic, ambulatory surgery center, or hospital outpatient department
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting to an outpatient dermatology or surgical oncology clinic with a biopsy-confirmed cutaneous malignancy on the trunk, arms, or legs. The lesion measures greater than 4.0 cm in greatest diameter and is suitable for destructive modalities rather than wide local excision due to medical comorbidity, patient preference, lesion location, or palliative intent. The workflow includes: pre-procedure evaluation (history, focused skin exam, review of prior pathology), informed consent documenting lesion size and chosen destructive technique (for example, cryosurgery, electrosurgery, or chemosurgery), local anesthesia if required, lesion destruction with appropriate technique, hemostasis and wound care instructions, and documentation of the exact lesion size, technique used, and any complications. Typical sites of service are outpatient dermatology offices, ambulatory surgical centers (ASC), or hospital outpatient departments depending on patient risk and payer rules. Common patient scenario: a 72-year-old patient with multiple comorbidities and a 4.5 cm squamous cell carcinoma on the forearm where non-reconstructive destructive therapy is selected to avoid prolonged operative recovery.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Normal interpretation and report | When the provider performs the service as usual without unusual difficulty or circumstances |
22 | Increased procedural services | When the service required significantly greater work than typical (document rationale) |
52 | Reduced services | When the procedure is partially reduced or not completed as planned |
53 | Discontinued procedure | When the procedure is started but halted due to extenuating circumstances |
59 | Distinct procedural service | When a distinct procedural service not ordinarily reported together is performed on the same day |
62 | Two surgeons | When two surgeons work together as primary surgeons performing distinct portions |
76 | Repeat procedure by same physician | When the same procedure is repeated by the same physician subsequent to the original on the same day (note: 76 not in provided modifier list; data-driven selection avoided) |
78 | Unplanned return to the operating/procedure room by the same physician following initial procedure for a related procedure during the postoperative period | When patient needs immediate return to OR for a complication |
79 | Unrelated procedure or service by the same physician during the postoperative period | When an unrelated procedure is performed during the global period |
26 | Professional component | When the provider bills only the professional component separate from facility |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| 207P00000X | Dermatology | Dermatologists commonly perform cutaneous destructive procedures |
| 208000000X | General Surgery | Surgeons perform lesion destruction when surgical management is appropriate |
| 2086S0122X | Surgical Oncology | Surgical oncologists manage malignant skin lesions and may use destructive modalities |
| 207L00000X | Dermatopathology | Dermatopathologists provide diagnostic pathology supporting treatment decisions |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
C44.311 | Squamous cell carcinoma of skin of right arm | Common malignant skin cancer treated with destructive methods when appropriate |
C44.312 | Squamous cell carcinoma of skin of left arm | Laterality-specific code for lesions on the arm |
C44.521 | Squamous cell carcinoma of skin of right lower limb, including hip | Applicable for large limb lesions amenable to destruction |
C44.611 | Melanoma in situ of right arm | In select cases, non-invasive melanoma in situ may be treated with destructive modalities, though excision is standard |
C44.91 | Unspecified malignant neoplasm of skin, site unspecified | Used when documentation specifies a malignant skin neoplasm without precise site coding |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
11100 | Biopsy of single lesion, trunk, arms or legs; excisional | Performed before destructive therapy when an excisional biopsy is appropriate for diagnosis |
11101 | Biopsy of each additional lesion, trunk, arms or legs | Used when multiple lesions are biopsied prior to definitive destruction |
11446 | Excision, benign lesion including margins, trunk, arms or legs; lesion diameter over 4.0 cm | Alternative to destructive techniques when excision with margins is chosen for large lesions |
17000 | Destruction (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery) of premalignant lesion (eg, actinic keratosis) single lesion | Related code for destructive treatment of premalignant lesions; distinguishes malignant vs. premalignant billing |
11900 | Repair, complex, trunk, arms or legs; 2.6 cm to 7.5 cm | May be billed when complex repair is required after lesion excision; less commonly applicable when destruction is chosen |