Decompressive fasciotomy of the hand — incision through fascial compartments to relieve elevated pressure and restore blood flow, excluding finger-only decompression covered by 26035.

Verified May 8, 2026 · 5 sources ↓

Medicare: $527.07
Work RVU: 7.38
Global, days: 90
Region: Hand

Drawn from CMSCgsmedicareEatonhand

Documentation requirements

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

Source · Editorial brief grounded in 5 cited references ↓

Preoperative diagnosis confirming compartment syndrome or severe fascial compression with clinical or pressure-measurement findings
Operative note specifying which fascial compartments were released and the exact incision locations
Documentation of whether incisions were primarily closed or left open with dressing, and rationale
Confirmation that decompression extended to the hand (not digits only), distinguishing this procedure from 26035
Anesthesia type used (regional vs. general) and identity of any co-surgeon if modifier 62 is applied
Postoperative neurovascular status assessment recorded before patient leaves the OR or recovery

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 52 Reduced services 59 Distinct service 62 Co-surgeons 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 26037 describes a decompressive fasciotomy of the hand in which the surgeon opens one or more fascial compartments through longitudinal incisions to release dangerously elevated compartment pressure. The procedure addresses acute compartment syndrome or severe chronic compression that has not responded to conservative management. Incisions may be left open and packed if swelling is significant, or primarily closed when tension allows — the operative note must specify which was done.

The code explicitly excludes decompression limited to the fingers alone (see 26035). If both the hand and digits are released in the same session, code selection and sequencing must reflect the anatomical extent documented in the operative report. The 90-day global period means all routine wound checks, dressing changes, and follow-up visits through day 90 are bundled — bill unrelated E/M services in that window with modifier 24.

Site of service matters here: facility and ASC payments differ substantially (see the Site of Service comparison table). When performed bilaterally, Medicare Part B requires modifier 50 on a single line; ASC billing uses modifier LT and RT on separate lines with one unit each.

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 (7.38) is the surgeon's own effort — the figure physician pay and productivity targets are built on. The total RVU (15.78) adds practice overhead and malpractice, and is what drives the Medicare payment below.

Work RVU	7.38
Practice expense RVU	6.96
Malpractice RVU	1.44
Total RVU	15.78
Medicare national rate	$527.07
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	$527.07
HOPD (APC 5113) Hospital outpatient department	$3,342.87
ASC (PI G2) Ambulatory surgical center (freestanding)	$1,644.87

Common denial reasons

The recurring reasons claims for CPT 26037 get rejected.

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

Operative note describes 'standard decompression' without specifying which hand compartments were opened — auditors flag vague language
Code billed as 26037 when the documentation supports digit-only release, which maps to 26035 instead
Routine post-op E/M visits billed without modifier 24 during the 90-day global period
Bilateral procedure submitted without modifier 50 (Part B) or without LT/RT on separate lines (ASC), causing one side to deny
Missing compartment pressure measurements or clinical criteria in the record when payer requires objective evidence of acute compartment syndrome for medical necessity

Frequently asked questions

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

01What distinguishes 26037 from 26035?

26035 covers decompression of the fingers only. 26037 is for fasciotomy of the hand itself. If both the hand and digits are released in the same operative session, document the full anatomical extent so the correct code — or combination — is supported.

02Can I bill an E/M on the same day as 26037?

Only if it is a significant, separately identifiable service unrelated to the decision to perform the fasciotomy. Attach modifier 25 and document the distinct medical decision-making. The fact that the patient is new does not by itself justify a same-day E/M.

03How do I bill 26037 when both hands are decompressed in the same session?

Medicare Part B: report one line with modifier 50. ASC: report two lines, one with modifier LT and one with modifier RT, each with one unit of service.

04What falls inside the 90-day global and what can be billed separately?

All routine post-op visits, wound checks, and dressing changes through day 90 are bundled. Unrelated E/M services require modifier 24. An unplanned return to the OR for a related complication uses modifier 78; an unrelated procedure in the global window uses modifier 79.

05Does payer medical necessity policy require compartment pressure documentation?

Many commercial payers require objective evidence — measured compartment pressures or documented clinical signs consistent with acute compartment syndrome — to approve 26037. Record the pressure values or the specific clinical findings (tense swelling, pain with passive stretch, paresthesias) in the preoperative note.

06When is modifier 22 appropriate for 26037?

Use modifier 22 when the procedure is substantially more work than typical — for example, severely scarred tissue from prior surgery, multi-compartment release with complex wound management, or significantly prolonged operative time. Attach a cover letter explaining the increased complexity; expect payer requests for operative notes.

Sources & references

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

Mira Scribe

Mira's AI scribe captures the specific fascial compartments released, number and orientation of incisions, wound closure status (open vs. closed), intraoperative compartment pressure readings if measured, and neurovascular exam findings before and after decompression. This prevents the most common audit flag — an operative note that says 'hand decompression performed' without anatomical detail — and supports medical necessity documentation required by payers scrutinizing acute compartment syndrome claims.

See how Mira captures CPT 26037 documentation