CPT 15111Surgery

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CPT 15111 covers each additional area of skin grafting where the surgeon takes a very thin layer of the patient's own skin (epidermal autograft) and applies it to a wound or burn area. This is an add-on code used after the primary skin graft procedure code.

Showing rates for

National Average

Base Medicare rate

$110.95

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

1.85

PE RVU (NF)

1.15

MP RVU

0.43

Total RVU

3.43

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

NCCI bundling edits

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Billing tips

Always verify primary code 15110 is billed first; 15111 will auto-deny without the base code on same claim
Impact: Prevents 100% denial; ensures $110.95 payment per additional site
Document total body surface area percentage and specific anatomical sites for each unit billed; use body diagram in operative note
Impact: Reduces audit risk by 60-70% and supports medical necessity for multiple units worth $110.95 each
Bill in facility setting when performed in hospital/ASC to capture higher facility overhead; non-facility only for office-based procedures
Impact: Facility rate is $98.66 vs non-facility $110.95; setting must match actual place of service or face recoupment
Per CMS guidelines, each additional 100 sq cm of trunk/arms/legs or each additional hand/foot/face area justifies one unit
Impact: Proper measurement documentation supports multiple units; undercoding by even 2 units = $221.90 loss per case
Include wound preparation codes (11042-11047) separately when extensive debridement performed prior to grafting
Impact: Can add $150-400 per case; requires separate documentation of debridement depth and surface area
For Medicare patients, verify LCD/NCD coverage criteria for autografts; some payers require failure of conservative management documentation
Impact: Pre-authorization compliance prevents post-payment recoupment of entire claim potentially exceeding $500-1000

Common denials

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 15111 in 2025?

The 2025 Medicare national average payment is $110.95 for non-facility settings and $98.66 for facility settings. The total RVU is 3.43 (1.85 work RVU, 1.15 non-facility PE RVU, 0.77 facility PE RVU, and 0.43 MP RVU) multiplied by the conversion factor of 32.3465.

Can CPT 15111 be billed alone or does it require another code?

CPT 15111 is an add-on code (indicated by the + symbol in CPT manual) and cannot be billed alone. It must be reported with primary code 15110 for the first epidermal autograft site. Billing 15111 without 15110 will result in automatic denial.

How many units of 15111 can be billed for one procedure?

The number of units depends on the total surface area grafted and number of distinct anatomical sites. Generally, each additional 100 square centimeters of trunk/arms/legs, or each additional distinct area like separate hand, foot, or facial segment, justifies one unit. Documentation must support each unit billed with specific measurements and anatomical locations.

What is the difference between CPT 15111 and skin substitute codes?

CPT 15111 specifically covers epidermal autograft using the patient's own skin tissue, while skin substitute codes (15271-15278) cover application of manufactured or processed biologics. Autografts involve harvesting patient tissue; substitutes do not. These are mutually exclusive and should not be billed together for the same anatomical site.

What documentation is needed to support multiple units of 15111?

Documentation must include specific anatomical sites grafted, total body surface area percentages or square centimeter measurements for each site, detailed operative notes describing each graft application, wound bed preparation, and ideally a body diagram. Vague descriptions like 'multiple areas' are insufficient and invite denials.

Does CPT 15111 include wound debridement or is that billed separately?

Wound debridement is not included in 15111 and can be billed separately using codes 11042-11047 when extensive debridement is performed and documented. However, minor wound preparation integral to graft application is included and should not be separately coded. Documentation must clearly distinguish extensive debridement from routine preparation.

What is the global period for CPT 15111?

CPT 15111 follows a 90-day global surgical package. All routine postoperative care for 90 days after the procedure is included in the reimbursement. Complications requiring return to OR may be billed with modifier 78, while unrelated procedures use modifier 79. The global period applies from the date of the primary procedure (15110).