Surgical restoration of a fascial defect in the leg, repairing the connective tissue layer that envelops leg muscles, vessels, and nerves.

Verified May 8, 2026 · 7 sources ↓

Medicare: $531.74
Work RVU: 4.59
Global, days: 90
Region: Foot & ankle

Drawn from CMSFastrvuAAPCFindacodeAbos

Documentation requirements

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

Source · Editorial brief grounded in 7 cited references ↓

Describe the etiology of the fascial defect — traumatic laceration, dehiscence, chronic defect, or post-compartment syndrome — not just 'fascial defect present'
Document the specific anatomic location within the leg (anterior compartment, posterior compartment, lateral compartment, or superficial posterior) and estimated defect size
Detail the repair technique used: primary suture closure, fascial advancement flap, graft source and type, or layered closure with specific suture materials
Confirm the surgical approach and extent of dissection required; notes that say only 'standard approach' are flagged on audit
If modifier 22 is appended, include a separate paragraph quantifying the additional time, complexity, or intraoperative findings that substantially increased work beyond typical
For traumatic cases, document the mechanism of injury and relationship to any concurrent fracture or open wound to support medical necessity

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 24 Unrelated E/M during global 25 Significant separate E/M 50 Bilateral procedure 51 Multiple procedures 57 Decision for surgery 58 Staged or related 59 Distinct service 76 Repeat, same physician 78 Unplanned return — related 79 Unrelated during global LT Left side RT Right side XS Separate structure

What this code covers

Source · Editorial summary grounded in 7 cited references ↓

CPT 27656 covers open surgical repair of a fascial defect in the leg — the region from knee to ankle, encompassing the tibia and fibula compartments. The procedure addresses disruptions to the fascia caused by trauma (including open fractures), iatrogenic injury, or degenerative conditions, and typically involves direct suture closure, fascial advancement, or graft reinforcement to restore structural integrity and compartment support.

The 90-day global period means all routine post-op care through day 90 is bundled into the single surgical payment. If you're managing an unrelated condition during that window — say, treating a new ankle sprain or performing an E/M for a separate diagnosis — append modifier 24 to the E/M code and link it to the unrelated diagnosis. A decision-for-surgery E/M on the day of or day before the procedure requires modifier 57, since this is a major (90-day) surgery.

Podiatry accounts for the dominant billing volume on this code per CMS PUF data, reflecting its use in lower-leg fascial repairs beyond the classic orthopedic trauma context. When the procedure is performed bilaterally — uncommon but possible in bilateral compartment conditions — append modifier 50. For staged or planned secondary repairs, use modifier 58, which resets the global clock. Unplanned return to the OR for a related fascial complication takes modifier 78; an unrelated same-surgeon procedure during the global takes modifier 79.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU vs. total RVU

The work RVU (4.59) is the surgeon's own effort — the figure physician pay and productivity targets are built on. The total RVU (15.92) adds practice overhead and malpractice, and is what drives the Medicare payment below.

Work RVU	4.59
Practice expense RVU	10.72
Malpractice RVU	0.61
Total RVU	15.92
Medicare national rate	$531.74
Global period	90 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	$531.74
HOPD (APC 5113) Hospital outpatient department	$3,342.87
ASC (PI A2) Ambulatory surgical center (freestanding)	$1,644.87

Common denial reasons

The recurring reasons claims for CPT 27656 get rejected.

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

Medical necessity not established — diagnosis codes submitted don't clearly support the need for fascial repair (e.g., unspecified soft tissue disorder without clinical context)
Bundling conflict when 27656 is billed same-session with a related open fracture or wound repair code without a supporting modifier 59 or XS to establish distinct service
Incomplete operative note that omits defect size, repair technique, or anatomic compartment, triggering documentation insufficiency on pre-pay or post-pay audit
Unrelated E/M billed within the 90-day global without modifier 24 or without a clearly distinct diagnosis linked to that visit
Modifier 50 applied for bilateral repair without documentation confirming the contralateral leg was treated in the same operative session

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 7 cited references ↓

01Can 27656 be billed with an open tibial fracture repair on the same day?

It depends on whether the fascial repair is distinct from the wound closure inherent to the fracture procedure. If the fascial defect required separate dissection and dedicated repair beyond routine fracture wound management, append modifier 59 or XS and document the distinct service in the operative note. Without that documentation, payers will bundle it.

02What ICD-10 codes typically support 27656?

M62.869 (muscle and fascia disorders, lower leg), traumatic laceration codes (S81.xx- open wound of lower leg), or sequela codes for prior trauma are the most defensible. The diagnosis must match the documented etiology — chronic defect, acute traumatic tear, or post-surgical dehiscence.

03Is modifier 57 required when the decision for this surgery is made the same day as the procedure?

Yes. Since 27656 carries a 90-day global, any E/M service at which the surgical decision is made on the day of or the day before surgery needs modifier 57 to be separately payable. Without it, that E/M is considered part of the pre-operative global.

04How does the 90-day global affect billing for post-op visits?

All routine follow-up care — wound checks, suture removal, and post-op evaluations related to the fascial repair — is bundled through day 90. To bill a separate E/M in that window, it must address a new or unrelated problem, require modifier 24, and be linked to a distinct diagnosis code.

05When is modifier 78 correct versus modifier 79 for a return to the OR during the global?

Modifier 78 applies when the patient returns to the OR for an unplanned procedure that is related to the original fascial repair — for example, re-exploration for wound dehiscence or hematoma at the repair site. Modifier 79 applies when the return procedure is completely unrelated to the original surgery. Inverting these is a common audit finding.

06Why does podiatry dominate the billing volume for 27656 over orthopedic surgery?

Per CMS Physician Fee Schedule 2026 utilization data, podiatrists bill 27656 most frequently, likely reflecting lower-leg and ankle fascial repairs in the context of diabetic complications, wound care sequelae, and Achilles region pathology. Orthopedic surgeons typically use it for trauma-related fascial disruptions alongside fracture or compartment syndrome management.

Sources & references

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

Mira Scribe

Mira's AI scribe captures the compartment location, defect dimensions, repair technique (primary suture, advancement, or graft), and intraoperative findings from dictation and maps them directly to the operative note fields required for 27656. This prevents the most common audit flag — a note that documents a fascial repair occurred but omits the anatomic compartment or repair method, leaving reviewers unable to confirm the procedure matches the billed code.

See how Mira captures CPT 27656 documentation