Surgical decompression of the fingers and/or hand, typically performed for injection injuries such as high-pressure grease gun or paint gun wounds, involving incision and release of involved compartments and tissue planes.

Verified May 8, 2026 · 5 sources ↓

Medicare: $815.32
Total RVUs: 24.41
Global, days: 90
Region: Hand

Drawn from CMSMdclarityFindacode

Documentation requirements

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

Source · Editorial brief grounded in 5 cited references ↓

Mechanism of injury documented with specificity — injected material (grease, paint, hydraulic fluid), estimated pressure, and time from injury to surgery
Anatomic extent of contamination: which fingers, which compartments, involvement of tendon sheaths or neurovascular structures
Named structures decompressed and irrigated, including fasciotomy levels performed
Wound status at conclusion — whether closed primarily, packed open, or treated with negative pressure wound therapy
Intraoperative findings describing tissue viability and degree of contamination
Laterality documented explicitly (right vs. left hand)

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 50 Bilateral procedure 51 Multiple procedures 52 Reduced services 58 Staged or related 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 5 cited references ↓

CPT 26035 covers open surgical decompression of the fingers and/or hand. The classic indication is a high-pressure injection injury — grease guns, paint guns, hydraulic fluid — where injected material tracks along fascial planes and causes rapid compartment syndrome. The procedure involves incising skin, fascia, and tendon sheaths as needed to decompress involved structures, irrigate injected material, and prevent ischemic necrosis. Debridement of devitalized tissue is typically part of the same operative session.

The 90-day global period applies. That window covers the operation, the day-before visit, and all routine post-op care through day 90. Additional procedures during the global — staged debridements, wound closures, or skin grafting — require modifier 58 if planned/staged or modifier 78 if an unplanned return for a related complication. Anything truly unrelated uses modifier 79. Laterality modifiers (LT/RT) are required for all single-hand cases.

Site of service matters here: HOPD and ASC reimbursements differ substantially (see the Site of Service comparison table). Most payers expect this procedure performed in a facility setting given its emergent or urgent nature. Document the injected material, injection pressure if known, anatomic extent of contamination, structures decompressed, and wound status at closure — open versus closed. Vague operative notes citing only 'hand decompression' without specifying the extent of involvement are a common audit flag.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	11.09
Practice expense RVU	10.96
Malpractice RVU	2.36
Total RVU	24.41
Medicare national rate	$815.32
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	$815.32
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 26035 get rejected.

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

Missing laterality modifier — claims for a unilateral hand procedure submitted without LT or RT are routinely rejected
Operative note too vague — phrases like 'standard decompression performed' without naming structures trigger medical necessity denials on audit
Unbundling error — separately billing wound irrigation or fasciotomy components that are integral to 26035
Global period conflict — staged debridement or wound closure billed in the 90-day window without modifier 58 (staged) or 78 (unplanned related return)
Medical necessity not established — diagnosis code does not reflect high-pressure injection injury or acute compartment syndrome of the hand

Frequently asked questions

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

01Does modifier 50 apply if both hands are decompressed in the same session?

Yes. If decompression is performed on both hands during the same operative session, append modifier 50 and bill on a single line. Some payers require separate line items with LT and RT instead — verify payer preference before submitting.

02Can I bill a staged debridement separately during the 90-day global?

Yes, but only with modifier 58. A planned or staged return to the OR for debridement or wound closure within the global period requires modifier 58 to indicate a staged procedure. Using no modifier will result in a global period denial.

03What diagnosis codes support 26035?

High-pressure injection injuries (ICD-10 W31.89XA for initial encounter, S60-range for hand wound codes) and acute compartment syndrome of the hand (M79.A21/M79.A22) are the primary supporting diagnoses. The diagnosis must reflect the urgency and mechanism — a routine laceration code will not support medical necessity for this level of decompression.

04Is 26035 bundled with fasciotomy codes for the same hand?

Fasciotomy is integral to the decompression procedure and should not be billed separately for the same hand in the same session. NCCI bundles most component incision and release codes into 26035. Review the current NCCI PTP edits before adding any secondary hand incision code.

05When does modifier 22 apply to 26035?

Modifier 22 applies when the procedure required substantially greater effort than typical — for example, extensive multilevel contamination through multiple finger compartments and the deep palmar space, or unusually prolonged operative time due to the extent of injected material. The operative note must document the specific factors that increased complexity; modifier 22 without supporting documentation will not survive audit.

06What is the global period for 26035, and what does it cover?

26035 carries a 90-day global period. It covers the operation itself, the one required preoperative visit on the day before surgery, and all routine postoperative evaluation and management visits through day 90. Unrelated E/M visits in that window need modifier 24; unrelated procedures need modifier 79.

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 injection mechanism (material type, estimated pressure), time from injury to OR, specific anatomic structures decompressed, tendon sheath involvement, extent of contamination, and wound closure status from dictation. This prevents the vague operative note language — 'hand decompressed, irrigated' — that auditors flag for medical necessity denials and that fails to justify the procedure's complexity when modifier 22 applies.

See how Mira captures CPT 26035 documentation