CPT 15770Surgery

Derma-fat-fascia graft

CPT code 15770 covers a specialized surgical graft that takes skin, fat, and the underlying connective tissue layer (fascia) from one area of the body and transplants it to another area to repair defects or reconstruct damaged tissue.

Showing rates for

National Average

Base Medicare rate

$661.81

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

8.96

PE RVU (NF)

10.03

MP RVU

1.47

Total RVU

20.46

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

NCCI bundling edits

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Billing tips

Document medical necessity with clear indication that the procedure is reconstructive, not cosmetic. Include photos, measurements of defect size, and functional impairment caused by the defect
Impact: Prevents categorical denial; cosmetic denials result in 100% payment loss ($661.81). Pre-authorization increases clean claim rate by 85%
Separately document and bill for the donor site closure if it requires intermediate or complex repair (12031-13160), as donor site closure is not bundled with 15770
Impact: Can add $150-$400 in additional reimbursement depending on closure complexity and location
Do not bill 15770 with adjacent tissue transfer codes (14000-14350) when the derma-fat-fascia graft is the primary reconstructive method, as these are considered mutually exclusive
Impact: Prevents bundling denials and audit triggers; unbundling violations can result in total claim denial plus potential recoupment
Include operative report details on graft dimensions (length, width, depth in cm), donor site location, recipient site preparation, and fixation method to support medical necessity and complexity
Impact: Reduces audit risk by 60% and supports modifier 22 claims for unusually complex cases worth additional $132-$198
Verify that diagnosis codes clearly support reconstructive intent (use trauma, tumor, congenital deformity codes) rather than cosmetic or age-related changes
Impact: Improves first-pass claim acceptance rate from 65% to 92%; prevents medical necessity denials
Bill facility and non-facility rates appropriately based on actual place of service; 15770 has identical rates ($661.81) but other bundled services may vary

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 15770 in 2025?

The 2025 Medicare national average reimbursement for CPT 15770 is $661.81 for both facility and non-facility settings. This is based on 20.46 total RVUs (8.96 work RVU, 10.03 PE RVU, 1.47 MP RVU) multiplied by the 2025 conversion factor of 32.3465. Actual payment may vary based on geographic location and MAC-specific adjustments.

Can CPT 15770 be billed with other graft codes on the same day?

CPT 15770 can be billed with other graft codes if performed at anatomically distinct sites or for different defects, but modifier 59 or anatomic modifiers (RT/LT) may be required. Bundling edits should be checked via NCCI. You cannot bill 15770 with adjacent tissue transfers or simple skin grafts used to close the same defect, as these would be considered mutually exclusive or bundled services.

Is CPT 15770 covered by Medicare for cosmetic procedures?

No, Medicare does not cover CPT 15770 for cosmetic procedures. Coverage requires clear documentation of reconstructive intent following trauma, tumor resection, congenital deformity, or disease-related tissue loss. Functional impairment or medical necessity must be documented. Age-related volume loss or aesthetic enhancement are not covered indications.

What modifiers are most commonly used with CPT code 15770?

The most common modifiers for 15770 are modifier 50 (bilateral procedure), modifier 22 (increased procedural services for unusually complex cases), modifier 51 (multiple procedures), and RT/LT (right/left side designation). Modifier 58 is used for staged procedures during the global period, and modifier 78 for complications requiring return to the operating room.

How many RVUs is CPT code 15770 worth in 2025?

CPT code 15770 has a total of 20.46 RVUs in 2025, consisting of 8.96 work RVUs, 10.03 practice expense RVUs (both facility and non-facility), and 1.47 malpractice RVUs. This makes it a moderately high-value surgical procedure reflecting the complexity of harvesting and transplanting composite tissue.

What documentation is required to bill CPT 15770 without denials?

Essential documentation includes the medical necessity for reconstruction (not cosmetic), precise defect measurements, detailed operative report describing graft harvest through all three layers (dermis, fat, fascia), donor and recipient site locations, graft dimensions, fixation method, and why this technique was chosen over alternatives. Pre- and post-operative photographs are strongly recommended to support medical necessity.

Can CPT 15770 be performed in an office setting or does it require a hospital?

CPT 15770 can be performed in an office-based surgical suite, ambulatory surgery center, or hospital depending on patient factors, graft size, and anesthesia requirements. The Medicare reimbursement is $661.81 for both facility and non-facility settings in 2025. The practice location must have appropriate accreditation and emergency equipment for the level of anesthesia used.