Palmar fasciectomy for contracture release, palm only, with or without Z-plasty, local tissue rearrangement, or skin grafting including graft harvest

Verified May 8, 2026 · 5 sources ↓

Medicare: $561.80
Total RVUs: 16.82
Global, days: 90
Region: Hand

Drawn from CMSAAPCEmedny

Documentation requirements

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

Source · Editorial brief grounded in 5 cited references ↓

Diagnosis of palmar fascia contracture with clinical findings supporting surgical indication (e.g., degree of metacarpophalangeal flexion contracture, failed conservative treatment)
Operative note specifying fasciectomy limited to the palm — any digit-level PIP joint release must be coded separately with 26123/26125
If Z-plasty or local tissue rearrangement was performed, explicitly describe technique; if skin graft was used, document donor site and graft dimensions
Laterality documented (right vs. left hand) to support LT/RT modifier assignment
Confirmation that graft harvest, if performed, occurred during the same operative session — this is bundled into 26121 and must not be billed separately
Post-operative plan and any staged procedures anticipated, relevant for global period management

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 51 Multiple procedures 58 Staged or related 59 Distinct service 78 Unplanned return — related 79 Unrelated during global 80 Assistant surgeon AS PA/NP/CNS assistant LT Left side RT Right side

What this code covers

Source · Editorial summary grounded in 5 cited references ↓

CPT 26121 covers surgical release of palmar fascia contracture (Dupuytren's disease) limited to the palm, without digit-level release. The procedure includes excision of diseased fascial cords, and the code bundles any Z-plasty, local tissue rearrangement, or skin grafting performed at the same time — including harvest of the graft itself. If the surgeon also releases a single digit's proximal interphalangeal joint, that shifts to 26123, and each additional digit adds 26125.

The 90-day global period governs all post-operative care through day 90 — wound checks, suture removal, and routine dressing changes are all bundled. Unrelated E/M services in that window require modifier 24; a significant separate E/M on the day of surgery needs modifier 25. You cannot report 26121 and 26123 together on the same hand — NCCI bundles them, and neither code can be reported more than once per hand per session.

This procedure is performed predominantly by orthopedic surgery, hand surgery, and plastic and reconstructive surgery specialists. Site of service matters: HOPD and ASC payments differ substantially, so verify facility designation before submitting. Document whether skin grafting was performed and where the graft was harvested from — failing to specify pulls the procedure out of the bundled code logic and creates audit exposure.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	7.54
Practice expense RVU	7.84
Malpractice RVU	1.44
Total RVU	16.82
Medicare national rate	$561.80
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	$561.80
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 26121 get rejected.

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

Billing 26121 and 26123 together for the same hand — NCCI bundles these codes and will reject the lower-valued code without an appropriate modifier
Upcoding to 26123 when documentation shows palmar-only release with no digit or PIP joint work performed
Separate billing of skin graft harvest (e.g., 15040-range codes) when graft is already included in 26121
Missing or ambiguous laterality when payer requires LT/RT modifiers for hand procedures
Post-op E/M visits billed without modifier 24 inside the 90-day global period, resulting in automatic bundling denial

Frequently asked questions

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

01Can I bill 26121 and 26123 together when the surgeon released the palm and one digit in the same session?

No. NCCI bundles 26121 and 26123 for the same hand. When the palm and a digit are released together, bill 26123 (partial palmar with single digit release) as the primary code, and add 26125 for each additional digit. Drop 26121 entirely.

02Is the skin graft separately billable when performed with 26121?

No. 26121 explicitly includes obtaining the graft when skin grafting is part of the same palmar fasciectomy. Billing a separate graft harvest code alongside 26121 will be denied as unbundling.

03What modifier applies if the surgeon performs a separate, unrelated procedure on the same hand during the global period?

Use modifier 79 for a return to the operating room for an unrelated procedure during the 90-day global. Modifier 78 applies only if the return is for a complication or condition directly related to the original fasciectomy.

04Do I need LT or RT modifiers for 26121?

Many payers require laterality modifiers for hand procedures. Append LT or RT based on operative documentation. If both hands are released in the same session, bill with modifier 50 or on separate lines with LT and RT per payer preference.

05Can I bill an E/M visit on the same day as the fasciectomy if the surgeon also evaluated a new problem?

Yes, but only with modifier 25 on the E/M code. The E/M must be clearly documented as a significant, separately identifiable service unrelated to the decision to perform the fasciectomy. Routine pre-op assessment does not qualify.

06What distinguishes 26121 from 26040 and 26045?

26040 and 26045 are fasciotomy codes — they involve incising the fascia without excision. 26121 is a fasciectomy, meaning diseased fascial tissue is actually removed. The operative note must describe excision of palmar cord or fascial tissue to support 26121; incision alone does not.

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 extent of palmar cord involvement, confirms the procedure was limited to the palm versus digit extension, documents whether Z-plasty or skin grafting was performed and the graft donor site, and records laterality. This prevents the most common audit flag for 26121: operative notes that don't explicitly distinguish palmar-only release from digit-level release, which leads to undercoding to 26121 when 26123 was warranted — or overcoding in the reverse direction.

See how Mira captures CPT 26121 documentation