Summary & Overview
CPT 13131: Complex Wound Repair of Cheek/Chin/Mouth/Neck/Hands
CPT code 13131 denotes a complex repair of wounds measuring 1.1 cm to 2.5 cm on anatomically sensitive areas such as the cheeks, chin, mouth, neck, axillae, genitalia, hands, and feet. It captures procedures that go beyond basic layered closures by including scar revision, debridement, extensive undermining of tissues, and the potential use of stents or retention sutures. This code matters nationally because it differentiates higher-complexity soft-tissue repairs from simpler closures, affecting clinical documentation, coding accuracy, and payment classification across outpatient and inpatient surgical settings.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for when CPT code 13131 is appropriate, benchmarks and comparative coverage considerations across major national payers, and the typical sites of service where this procedure is performed. The publication also outlines coding nuances that influence claims adjudication and common modifier usage (listed separately), helping billing professionals and policy analysts understand how this code fits into broader surgical repair coding frameworks. Data not available in the input is indicated where relevant.
Billing Code Overview
CPT code 13131 describes repair of a wound measuring 1.1 cm to 2.5 cm located on the cheeks, chin, mouth, neck, axillae, genitalia, hands, and/or feet. The procedure may include scar revision, debridement, extensive undermining of tissues, and use of stents or retention sutures in addition to a layered closure.
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Service type: Complex wound repair with layered closure and possible scar revision or extensive tissue undermining
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Typical site of service: Ambulatory surgical center, outpatient surgical suite, or hospital operating room, depending on clinical complexity and patient needs
Clinical & Coding Specifications
Clinical Context
A 34-year-old male presents to the emergency department after sustaining a laceration to the left cheek from a bicycle accident. The wound measures approximately 1.8 cm in greatest length, with irregular edges and partial tissue loss. The patient is healthy, tetanus up to date, and there is no active infection. The treating physician (board-certified plastic surgeon or emergency medicine physician with wound expertise) performs a layered complex repair under local anesthesia. The procedure includes wound bed debridement, extensive undermining to mobilize tissue edges, scar revision of previous traumatic margins, placement of deep absorbable sutures for layered closure, and use of retention sutures/stents to reduce tension on the skin closure.
The clinical workflow includes triage and wound assessment, photographic documentation, informed consent, local anesthesia administration, wound irrigation and debridement, layered closure with deep and superficial sutures, application of sterile dressing, and post-procedure wound care instructions. Typical sites of service are the emergency department, ambulatory surgery center, outpatient clinic procedure room, or hospital operating room depending on patient stability and complexity. Common payors for billing include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure |