CPT 17004: Destruction of 15 or More Premalignant Lesions
Headline: CPT code 17004: Destruction of 15+ Premalignant Lesions, Common Dermatologic Procedure
Lead: CPT code 17004 covers the destruction of 15 or more premalignant lesions using techniques such as chemosurgery, cryosurgery, electrosurgery, or similar methods. This procedural dermatology code is commonly used in outpatient clinic settings and is relevant to clinicians and billing teams across the country managing actinic keratoses and other premalignant skin conditions.
What the code represents and why it matters: CPT code 17004 designates a high-volume lesion destruction encounter — specifically the treatment of 15 or more premalignant lesions. Nationally, this code matters because it documents the scope of procedural dermatologic care delivered in a single session and impacts billing, coding workflows, and aggregated utilization metrics for skin care services.
Key payers covered: The analysis covers major commercial and public payers, including Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare.
What readers will learn: The publication provides clinical context for the procedure, explains typical sites of service, and situates CPT code 17004 within related code anatomy (first lesion and add-on lesion codes). Readers will find benchmarks, policy-relevant observations, and billing considerations relevant to high-volume premalignant lesion destruction encounters.
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Billing Code Overview
CPT code 17004 describes the destruction of 15 or more premalignant lesions using techniques such as chemosurgery, cryosurgery, electrosurgery, or other destructive methods. The service type is procedural dermatologic lesion destruction. The typical site of service is an ambulatory clinic or outpatient dermatology setting, where procedural lesion destruction is performed under local anesthesia or topical measures.
Clinical & Coding Specifications
Clinical Context
A 72-year-old patient with chronic sun exposure presents to a dermatology clinic with multiple rough, scaly patches on the forehead, scalp, and dorsal hands. The clinician documents more than 15 discrete premalignant lesions consistent with actinic keratoses (L57.0) on examination. After discussion of options, the dermatologist arranges an in‑office procedure using cryosurgery and electrosurgery to destroy the lesions in a single session. The clinical workflow includes: a focused history and targeted skin exam; photographic documentation of lesion distribution; local anesthesia if needed; sequential destruction of lesions with cryotherapy and focal electrodessication; brief post‑procedure wound care instructions and topical dressing as appropriate; documentation of lesion count, technique(s) used, anatomic sites treated, and estimated total time. The encounter note references the diagnosis L57.0 and reports the use of 17004 for destruction of 15 or more premalignant lesions. Follow‑up is arranged for wound check or return if signs of infection or delayed healing develop.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable E/M service by the same physician on the same day | Use when a distinct office evaluation is provided the same day as 17004 and meets E/M documentation requirements. |
52 | Reduced services | Use if the procedure is partially reduced or not completed as originally planned. |
53 | Discontinued procedure | Use when the procedure is started but halted due to extenuating circumstances or patient intolerance. |
59 | Distinct procedural service | Use to indicate a separate and distinct procedure when another unrelated service is billed on the same day. |
51 | Multiple procedures | Report when multiple different CPT procedures are billed on the same day; payer rules may require ordering or reduction. |
22 | Unusual procedural services | Use when the work required is substantially greater than typical for 17004; full documentation required. |
26 | Professional component | Use only if separate technical and professional components are reported (rare for in‑office dermatologic destruction). |
TC | Technical component | Use only if reporting the technical component separately (rare for in‑office procedures). |
59 | Distinct procedural service | See above — applicable when another procedure performed at a different site or session requires separation. |
RT | Right side | Use to indicate right side when laterality reporting is required by payer (if applicable). |
LT | Left side | Use to indicate left side when laterality reporting is required by payer (if applicable). |
50 | Bilateral procedure | Use when the procedure is performed bilaterally and payer requires a bilateral modifier. |
58 | Staged or related procedure or service by the same physician during the postoperative period | Use when the destruction is a planned staged service following an initial procedure. |
79 | Unrelated procedure or service by the same physician during the postoperative period | Use when 17004 is unrelated to a prior procedure's postoperative care. |
76 | Repeat procedure or service by same physician | Use when the same procedure is repeated later the same day. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207N00000X | Dermatology Physician | General dermatologists commonly perform lesion destruction for actinic keratoses. |
207ND0101X | MOHS-Micrographic Surgery Physician | MOHS surgeons may perform extensive field treatments or lesion destructions in complex cases. |
207NS0135X | Procedural Dermatology Physician | Procedural dermatologists perform office‑based destructive techniques including cryosurgery and electrosurgery. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
L57.0 | Actinic keratosis | Premalignant sun‑induced lesions commonly treated with destructive methods; primary indication for 17004 when 15 or more lesions are treated. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
17000 | Destruction (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery, surgical curettement), all benign or premalignant lesions; first lesion | Reported when a single premalignant lesion is destroyed; 17000 is used for the first lesion when fewer than two lesions are treated or to represent the primary lesion when fewer than 15 lesions exist. |
17003 | Add-on code for destruction of premalignant lesion, second through 14th lesion | Used in conjunction with 17000 to report the 2nd–14th lesions; when total lesions reach 15 or more, 17004 is used instead of 17000 + add-on codes. |
17004 | Destruction, 15 or more premalignant lesions (eg, actinic keratoses) | Primary code for the described procedure; used when 15 or more premalignant lesions are destroyed in a single session. |