Skin substitute graft application to the trunk, arms, or legs in pediatric patients, covering the first 100 sq cm of wound surface area when total wound surface area is 100 sq cm or greater.

Verified May 8, 2026 · 5 sources ↓

Medicare: $321.98
Total RVUs: 9.64
Global, days: 0
Region: General

Drawn from CMSAAPC

Documentation requirements

What must appear in the operative or office note to support the claim.

Source · Editorial brief grounded in 5 cited references ↓

Record total wound surface area in sq cm — this determines which code family (15271–15274 vs. 15275–15278) applies and whether the ≥100 sq cm threshold is met.
Document the specific anatomic location(s) treated — trunk, arm, or leg — separately from face, scalp, hands, or feet.
Confirm and document patient age or weight classification to support use of the infant/child-specific code rather than the adult series.
Identify the skin substitute product by name and HCPCS code; document medical necessity and reason autograft was not used.
Record area of graft applied per session in sq cm (length × width); distinguish from total wound surface area.
If site preparation (15002/15003) was performed, document that work separately in the operative note with its own measured surface area.

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 51 Multiple procedures 52 Reduced services 58 Staged or related 59 Distinct service 76 Repeat, same physician 77 Repeat, another physician 78 Unplanned return — related 79 Unrelated during global LT Left side RT Right side

What this code covers

Source · Editorial summary grounded in 5 cited references ↓

CPT 15273 covers the initial 100 sq cm application of a skin substitute graft to the trunk, arms, or legs of infants and children when the total wound surface area being treated reaches or exceeds 100 sq cm. The pediatric size threshold — expressed as either 100 sq cm or 1% of total body surface area — distinguishes this code from its adult counterpart. Code selection hinges on two measurements: total wound surface area (which determines which code family applies) and the area actually grafted per session.

This is a add-on-adjacent primary code in the 15271–15278 series. When treating multiple anatomic zones in the same session, the correct series must be matched to each zone — trunk/arms/legs codes (15271–15274) are separate from face/scalp/hands/feet codes (15275–15278). Site preparation (15002–15003 for pediatric patients) is separately reportable and should not be overlooked; it represents distinct work that predates the graft application itself.

The global period is 000, meaning post-operative care is not bundled — each follow-up visit is billed separately. CMS LCDs governing skin substitute grafts for lower-extremity chronic wounds have undergone significant revision; as of April 2025, CMS withdrew several final LCDs and issued a national coverage statement. Verify current MAC-specific guidance before billing 15273 for chronic wound indications in the pediatric population.

RVU & reimbursement

Component RVUs and Medicare national rate. Actual payment varies by GPCI locality.

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	3.41
Practice expense RVU	5.61
Malpractice RVU	0.62
Total RVU	9.64
Medicare national rate	$321.98
Global period	0 days

Payment by site of service

Medicare pays different rates by setting. HOPD typically pays substantially more than ASC for the same procedure.

Source · CMS OPPS Addendum B·ASC HCPCS payment rates·2026

Setting	Medicare rate (national)
Office (PFS non-facility) Procedure performed in physician's office	$321.98
HOPD (APC 5054) Hospital outpatient department	$2,107.97
ASC (PI G2) Ambulatory surgical center (freestanding)	$1,128.57

Common denial reasons

The recurring reasons claims for CPT 15273 get rejected.

Source · Editorial brief grounded in CMS NCCI edits, AAOS coding appeals, and cited references ↓

Wrong code series selected — trunk/arm/leg codes used for face, scalp, hand, or foot wounds, which require 15275–15278.
Total wound surface area not documented or falls below the ≥100 sq cm threshold required for 15273 vs. 15271.
Skin substitute product not covered under applicable LCD or NCD, or HCPCS supply code for the graft material is missing from the claim.
Patient age not documented or ambiguous, causing payer to apply adult-series edits instead of the infant/child series.
Site preparation billed without separate operative documentation confirming distinct preparatory work prior to graft placement.

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 5 cited references ↓

01What is the difference between 15273 and 15271?

15271 applies when total wound surface area across the trunk, arms, and legs is less than 100 sq cm and covers the first 25 sq cm grafted. 15273 applies when total wound surface area is 100 sq cm or greater and covers the first 100 sq cm grafted. The total wound measurement drives code selection; the per-session graft area determines add-on units.

02Can 15273 and 15275 be billed together on the same date?

Yes, if grafts are applied to both trunk/arm/leg zones AND face/scalp/hand/foot zones in the same session, you may bill the appropriate code from each series. Document each anatomic zone and its measured surface area separately. Modifier 59 or an X modifier may be required to bypass NCCI bundling edits depending on payer.

03Is site preparation (15002/15003) separately billable with 15273?

Yes. Surgical site preparation for pediatric patients is reported with 15002 for the first 100 sq cm and 15003 for each additional 100 sq cm. The operative note must clearly describe the preparatory excision as distinct work. Failing to report it leaves reimbursement on the table; failing to document it invites denial.

04What is the global period for 15273, and how does that affect post-op billing?

The global period is 000 — the day of surgery only. Post-operative visits the following day and beyond are not bundled into the procedure payment and should be billed separately with the appropriate E/M code. No modifier 24 or 79 is required for those subsequent visits.

05How does the April 2025 CMS LCD withdrawal affect billing 15273?

CMS withdrew several final LCDs covering skin substitute grafts in April 2025 and replaced them with a national coverage statement. MAC-specific billing and coverage articles (such as A57680 and A54117) remain in effect for lower-extremity chronic wounds. Check your MAC's current article before billing 15273 for any chronic wound indication to confirm which products and diagnoses are covered.

06When should modifier 58 be used with 15273?

Use modifier 58 when a staged or planned return to the OR for additional grafting was documented in the initial operative note. It signals the second procedure was anticipated, resets the global clock, and distinguishes planned staging from an unplanned complication-driven return (which would use modifier 78).

Sources & references

Editorial content was developed using the following public sources. Last verified May 8, 2026.

Mira AI Scribe

Mira's AI scribe captures the total wound surface area, the per-session grafted area, the specific anatomic zone (trunk, arm, or leg), patient age, and the skin substitute product name from dictation. It flags when the documented total surface area falls below 100 sq cm — the threshold that separates 15273 from 15271 — preventing the most common upcoding denial for this code family.

See how Mira captures CPT 15273 documentation