CPT Code 15757Complete Billing & Coding Guide (2026)Free skin flap microvasc
About CPT 15757
CPT 15757 is a Current Procedural Terminology code in the Anesthesia category maintained by the American Medical Association. The CMS short descriptor reads "Free skin flap microvasc". For the full AMA long descriptor and clinical guidance, refer to the current CPT code manual.
Major surgical codes carry a 90-day global period that bundles all related post-operative care. Improper billing of post-op E/M (without modifier 24 for unrelated care) is a common audit finding. Documentation of medical necessity for the procedure itself remains the foundation of any successful claim.
CPT 15757 has a 90-day global period. Any E/M visit within that window for the same condition is bundled into the procedure payment. Use modifier 24 for unrelated E/M, modifier 79 for unrelated procedures, and modifier 78 for related returns to the OR.
Code Properties
RVU Breakdown
Every CPT code’s Medicare payment is calculated from three Relative Value Unit components: physician work, practice expense, and malpractice. Together they multiply by the conversion factor to produce the payment amount.
Payment = Total RVU × Conversion Factor ($33.4009) × Geographic Adjustment (GPCI). National averages shown. Actual payment varies by locality.
Medicare Payment by State
Medicare adjusts payment by locality based on GPCI (Geographic Practice Cost Index). Higher cost-of-living areas like California and New York pay more. Rural states pay less. Top 12 states shown.
Showing top 12 of 53 states. Full locality data available in CMS PFS Locality file.
NCCI Bundling Edits
10 pairsThese codes trigger National Correct Coding Initiative edits when billed with 15757. An indicator of 0 means the pair cannot be unbundled. Indicator 1 means modifier 59 or X-modifiers may allow separate billing with supporting documentation.
Billing 15757 alongside a bundled code without the correct modifier generates CARC 97 denials. Payers often flag these as audit risks. Document medical necessity for the separate service and apply modifier 59 or the appropriate X-modifier (XE, XS, XP, XU) only when clinically justified.
Anesthesia service included in surgical procedure
Anesthesia service included in surgical procedure
Misuse of Column Two code with Column One code
Misuse of Column Two code with Column One code
Standards of medical/surgical practice
Standards of medical/surgical practice
Misuse of Column Two code with Column One code
Misuse of Column Two code with Column One code
Misuse of Column Two code with Column One code
Misuse of Column Two code with Column One code
Bundling denials on 15757 are recoverable when the edit indicator is 1 and the chart documents a distinct, separately identifiable service. Our coders verify the indicator and pick the precise X-modifier (XE, XS, XP, XU) instead of defaulting to modifier 59.
Applicable Modifiers
Modifiers commonly paired with 15757 based on its category. Apply only when the clinical circumstance warrants. Incorrect modifier use is a top audit target.
Modifier audits catch what scrubbers miss. Our AAPC-certified team reviews every modifier choice on 15757 against the chart documentation before submission, surfacing missed and misapplied modifiers across the practice.
Supporting ICD-10 Diagnoses
These diagnosis codes commonly support medical necessity for CPT 15757. Using the correct ICD-10 prevents CARC 50 denials. Payer rejects when the diagnosis doesn’t support the procedure.
CARC 50 medical-necessity denials carry both rework cost and an audit-risk signal when patterns repeat. Our coders verify ICD-10 specificity and policy alignment at the coding stage so these losses get prevented upstream.
Find the revenue leakage in your 15757 claims.
Wrong modifier, missing documentation, bundling without justification, stale ICD-10 linkage: these are the silent revenue killers on Anesthesia claims. Our AAPC-certified team audits your last 90 days of 15757 claims, surfaces the recoverable dollars, and appeals them. Free, no obligation.
Losing revenue on CPT 15757? We’ll find it.
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Related CPT Codes
Codes in the same family as 15757
Specialty billing guides
CPT 15757 is among the top codes profiled in these specialty billing guides.
Everything about CPT 15757
What does CPT code 15757 cover?
CPT 15757 is a Current Procedural Terminology code in the Anesthesia category maintained by the American Medical Association. The CMS short descriptor reads "Free skin flap microvasc". For the full AMA long descriptor and clinical guidance, refer to the current CPT code manual.
What is the Medicare payment for CPT 15757?
The national average Medicare payment for CPT 15757 is approximately $1945.6 in a non-facility setting and $1945.6 in a facility setting. Actual payment varies by locality based on GPCI adjustments. Total RVU is 58.25 with a conversion factor of $33.4009.
What is the global period for CPT 15757?
CPT 15757 has a 90-day global period (indicator 090). Routine post-op care for the next 90 days is bundled into the procedure payment, including all related E/M visits. Bill modifier 24 for unrelated E/M, modifier 79 for unrelated procedures, or modifier 78 for related returns to the OR during this window.
What codes bundle with CPT 15757?
CPT 15757 has NCCI Procedure-to-Procedure edits with 10+ codes including 01951, 01952, 0213T. Modifier indicator 0 means the edit cannot be bypassed. Indicator 1 means modifier 59 or X-modifiers may allow separate billing with documentation.
CPT codes and descriptions are copyright of the American Medical Association. RVU values reflect current CMS publications. Actual payment varies by locality. Commercial payer rates vary by contract.
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We audit your last 90 days of claims and surface the revenue leakage: wrong modifiers, missed bundling appeals, ICD-10 specificity gaps. AAPC-certified coders. 2.49% of collections. No setup fees.