Skin sub graft f/n/hf/g addl
CPT 15276 is an add-on code used when a surgeon applies additional skin substitute grafts to the face, scalp, neck, hands, feet, or genitals beyond the first 25 square centimeters. Each unit represents an additional 25 sq cm or less of graft material applied.
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
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
NCCI bundling edits
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Billing tips
Calculate and document exact square centimeters of each graft area; bill one unit of 15276 for each additional 25 sq cm or portion thereof beyond the first 100 sq cm covered by 15275
Impact: Each correctly documented unit adds $23.94-$31.70; undercounting costs hundreds in lost revenue on large grafts
Always bill 15276 with primary code 15275; this add-on code cannot be billed alone and will auto-deny without the parent code on the same claim
Impact: Prevents 100% denial; ensures payment of the add-on units
Document the specific type and manufacturer of skin substitute used (e.g., Integra, AlloDerm, Apligraf) as payers increasingly require product details for verification
Impact: Reduces audit risk and secondary documentation requests that delay payment by 30-60 days
Verify facility vs non-facility setting before billing; the $7.76 differential (24.5% higher non-facility rate) affects practice revenue significantly
Impact: Proper place of service coding ensures maximum reimbursement of $31.70 vs $23.94
Check if your skin substitute product requires a separate supply code (Q-code or C-code); many biological grafts are billed separately from the application procedure
Impact: Missing supply codes can leave $200-$2000+ in product costs unreimbursed per case
When billing multiple units, maintain detailed operative report documentation showing exact measurements and anatomical locations for each 25 sq cm increment
Impact: Prevents downcoding from auditors; protects 3-10 units worth $71.82-$317.00 in typical complex cases
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