CPT 15135Surgery

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CPT code 15135 covers the surgical procedure of taking healthy skin from one part of a patient's body and grafting it to another area that needs coverage, specifically for the first 100 square centimeters of dermal autograft applied to the face, scalp, neck, hands, feet, or genitalia.

Showing rates for

National Average

Base Medicare rate

$848.77

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

11.03

PE RVU (NF)

13.66

MP RVU

1.55

Total RVU

26.24

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

NCCI bundling edits

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Billing tips

Always measure and document exact graft size in square centimeters or convert from measurements (length x width) in operative notes, as 15135 covers only the first 100 sq cm
Impact: For grafts larger than 100 sq cm, add-on code 15136 reimburses an additional $83.49 per each additional 100 sq cm or part thereof, potentially adding $167-$334 for larger grafts
Bill facility rate ($740.41) for hospital/ASC settings and non-facility rate ($848.77) for office-based procedures, ensuring place of service code matches
Impact: Incorrect POS code can result in $108.36 underpayment or trigger audit flags for potential overpayment
Separately bill donor site preparation and closure (15002-15005) when performed, as these are not bundled with 15135
Impact: Adds $186-$373 per procedure depending on donor site size and location; commonly overlooked revenue opportunity
Document anatomic site with extreme specificity (e.g., 'dorsal right hand including thumb and index finger' rather than just 'hand') to justify 15135 over lower-paying codes
Impact: Prevents downcoding to non-specific sites (15120-15121) which reimburse $412-$495 less per 100 sq cm
For burn patients, ensure diagnosis coding includes TBSA (total body surface area) percentage and burn degree to support medical necessity
Impact: Missing TBSA/degree documentation is the #1 cause of medical necessity denials, delaying payment 30-90 days
When grafting multiple non-contiguous sites during one session, bill each site separately with modifier 59 and detailed operative note showing distinct anatomic locations

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Frequently asked questions

What is the difference between CPT 15135 and 15120 for skin grafts?

CPT 15135 is used for dermal autografts to anatomically complex areas (face, scalp, hands, feet, neck, genitalia) and reimburses $848.77, while 15120 covers simpler anatomic sites (trunk, arms, legs) and pays $435.88. The anatomic location documented in the operative note determines which code to use.

How do you calculate square centimeters for CPT 15135 billing?

Measure the graft's length and width in centimeters and multiply them together (e.g., 8 cm x 12 cm = 96 sq cm). For irregular shapes, measure the maximum dimensions that encompass the grafted area. Document these measurements explicitly in the operative note, as 15135 covers the first 100 sq cm and 15136 is used for each additional 100 sq cm.

Can CPT 15135 be billed with debridement codes?

Yes, recipient site preparation codes (15002-15005) can be billed separately with 15135 when documented as distinct procedures with separate work. However, minor debridement inherent to graft placement is bundled. The debridement must be extensive, separately documented, and medically necessary beyond routine graft site preparation.

What is the 2025 Medicare reimbursement for CPT 15135?

The 2025 Medicare national average reimbursement is $848.77 for non-facility settings and $740.41 for facility settings (hospital or ASC). Actual payment varies by geographic location based on locality-specific adjustments to the conversion factor of 32.3465.

Does CPT 15135 include the donor site harvest?

No, CPT 15135 covers only the application of the autograft to the recipient site. Donor site harvesting and closure are separately reportable using codes 15002-15005 (recipient site preparation) or may be considered included depending on graft type. Always document donor site work separately to support additional coding.

What diagnosis codes support medical necessity for CPT 15135?

Common supporting diagnoses include full-thickness burns (T20-T25 with appropriate TBSA), traumatic wounds (S00-S99 series), non-healing ulcers (L89.x for pressure ulcers, E11.621 for diabetic foot ulcers), post-oncologic defects (Z85.x with reconstruction), and necrotizing infections (M72.6). Documentation must show wound depth and failed conservative management.

How many times can CPT 15135 be billed per patient?

CPT 15135 can be billed once per operative session for the first 100 sq cm of graft to qualifying anatomic sites. For larger grafts, add code 15136 for each additional 100 sq cm. For multiple non-contiguous sites during one session, 15135 may be billed multiple times with modifier 59, but expect scrutiny and potential multiple procedure reductions.