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CPT 15201 covers additional skin grafts applied to the trunk, arms, or legs beyond the first graft. This add-on code is used when a patient requires more than one 100 sq cm area of skin grafting during the same surgical session.
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
Always bill 15201 with primary code 15200; this add-on code cannot be billed independently
Impact: Prevents automatic denial; ensures proper pairing for $134.24 reimbursement per additional unit
Calculate total surface area grafted and report one unit of 15201 for each additional 100 sq cm beyond the first
Impact: Accurate unit calculation can add hundreds of dollars to claims for extensive grafts (e.g., 300 sq cm = 15200 + 2 units of 15201 = additional $268.48)
Document exact surface area measurements in square centimeters in the operative report, not estimates
Impact: Prevents downcoding and medical necessity denials; precise documentation supports each $134.24 unit billed
Verify facility vs non-facility setting as rate differential is $60.49 per unit (non-facility pays 82% more)
Impact: Correct place of service coding ensures proper payment: $134.24 vs $73.75 per unit
Bill on same date of service as 15200 only; staging procedures require separate primary codes, not add-on codes
Impact: Prevents denial of add-on code if billed on different date; maintains full reimbursement
Include donor site preparation and harvesting documentation; these are included in the graft codes and should not be separately billed
Impact: Avoids unbundling audits and recoupment actions while supporting medical necessity for units billed
Common denials
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