CPT 13131Surgery

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CPT 13131 covers complex repair of wounds on the face, ears, eyelids, nose, lips, or mucous membranes measuring 1.1 to 2.5 cm. These repairs involve layered closures requiring more than simple stitches.

Showing rates for

National Average

Base Medicare rate

$374.57

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

3.73

PE RVU (NF)

7.37

MP RVU

0.48

Total RVU

11.58

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Combine total length of all repairs in same anatomic grouping and complexity level - never bill multiple codes for same complexity/location
Impact: Prevents $235-$375 denial for improper fragmentation; add lengths together and bill single code for total
Document wound length before debridement and after if tissue was removed - use post-debridement measurement for coding
Impact: Ensures proper code selection; failure to document can result in downcoding from 13131 ($374.57) to 12052 ($194.63) - a $180 loss
Clearly document layered closure technique including specific layers closed (subcutaneous, dermal, epidermal)
Impact: Justifies complex vs intermediate repair; lack of layer documentation commonly results in downcoding to 12052, reducing reimbursement by $180
Bill facility codes (POS 22, 23) vs non-facility appropriately - same procedure yields $139 difference ($374.57 vs $235.48)
Impact: Incorrect place of service can trigger recoupment of $139.09 overpayment per claim
When multiple wounds require complex repair in same anatomic area, measure total linear length and bill one code - do not bill per wound
Impact: Prevents unbundling denials; proper summation ensures maximum reimbursement without compliance risk
Verify wound size falls within 1.1-2.5 cm range; use 13132 for each additional 5 cm beyond 2.5 cm on same sites
Impact: Wounds >2.5 cm require add-on code 13132 for additional $133.92 per 5 cm increment

Common denials

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 13131 in 2025?

The 2025 Medicare national average reimbursement for CPT 13131 is $374.57 in non-facility settings and $235.48 in facility settings. The rate difference reflects practice expense variations based on where the procedure is performed.

What is the difference between CPT 13131 and 12052?

CPT 13131 is for complex repairs requiring layered closure of subcutaneous tissue and fascia in addition to skin closure, while 12052 covers intermediate repairs involving layered closure of one or more deeper dermal layers without fascia involvement. Complex repairs (13131) reimburse approximately $180 more than intermediate repairs due to increased technical difficulty.

Can you bill CPT 13131 with an E/M code on the same day?

Yes, but you must append modifier 25 to the E/M code and document a separately identifiable evaluation and management service beyond the decision to perform the repair. The E/M must address distinct concerns or involve significant assessment unrelated to the wound repair itself.

How do you measure wound length for CPT 13131?

Measure the total linear length of all wounds in the same anatomic grouping (face/ears/eyelids/nose/lips/mucous membranes) requiring the same complexity level. Add together multiple wounds in the same area and bill one code for the total length. Measure after debridement if tissue was removed. CPT 13131 covers 1.1 to 2.5 cm total length.

What are the RVU values for CPT code 13131?

CPT 13131 has a total RVU of 11.58, composed of 3.73 work RVUs, 7.37 non-facility practice expense RVUs (3.07 facility PE RVUs), and 0.48 malpractice RVUs. These values are from the 2025 Medicare Physician Fee Schedule.

What documentation is required to support billing CPT 13131?

Required documentation includes measured wound length in centimeters, specific anatomic location, detailed description of layered closure technique identifying each tissue layer closed (subcutaneous, fascia, dermal, epidermal), suture materials used, and any special techniques like undermining or debridement. Photos are strongly recommended for audit protection.

When should I use CPT 13132 instead of 13131?

CPT 13132 is an add-on code used in addition to 13131 when the total wound length exceeds 2.5 cm. Bill 13131 for the first 1.1 to 2.5 cm, then add 13132 for each additional 5 cm or portion thereof. For example, a 6 cm facial laceration would be coded as 13131 + 13132.