Surgical drainage of a hand tendon sheath involving incision into the protective covering surrounding a tendon in the digit or palm to evacuate fluid or purulent material.

Verified May 8, 2026 · 5 sources ↓

Medicare: $532.08
Total RVUs: 15.93
Global, days: 90
Region: Hand

Drawn from CMSAAPCAbosDownloads

Documentation requirements

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

Source · Editorial brief grounded in 5 cited references ↓

Identify the specific structure incised — must confirm tendon sheath, not bursa or subcutaneous abscess
Name the digit and anatomic location (e.g., volar aspect, proximal phalanx of right ring finger)
Document the indication: tenosynovitis, purulent tenosynovitis, or other diagnosis driving the drainage
Describe surgical findings including fluid character (serous, purulent, hemorrhagic) and volume
Record closure technique and dressing applied
If multiple sheaths drained, document each separately with distinct location and findings to support 'each' billing

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 78 Unplanned return — related 79 Unrelated during global 80 Assistant surgeon LT Left side RT Right side

What this code covers

Source · Editorial summary grounded in 5 cited references ↓

CPT 26020 covers open drainage of a tendon sheath in the digit and/or palm — one reporting unit per sheath drained. It is the correct code when the surgeon incises into the tendon sheath itself, not merely a subcutaneous abscess or palmar bursa. The distinction matters: finger abscess drainage is 26010/26011, palmar bursa drainage is 26025/26030, and trigger finger release is 26055. If the operative note doesn't name the structure incised, you cannot support 26020.

The procedure carries a 90-day global period. All routine follow-up care, wound checks, and dressing changes through day 90 are bundled. Separate E/M visits during the global window require modifier 24 (unrelated) or 25 (significant, separately identifiable service on the day of procedure). Re-operation for persistent or recurrent infection during the global period is reported with modifier 78 if related, modifier 79 if unrelated.

The code descriptor includes the phrase 'each,' meaning it can be reported per sheath when multiple distinct sheaths are drained in the same session. Use modifier 59 to distinguish separate sheath procedures from unbundling scrutiny, and document each sheath by digit and anatomic location.

RVU & reimbursement

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

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	6.67
Practice expense RVU	7.95
Malpractice RVU	1.31
Total RVU	15.93
Medicare national rate	$532.08
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	$532.08
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 26020 get rejected.

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

Operative note says 'incision and drainage' without specifying the tendon sheath as the structure entered — payer downcodes to 26010 or 10060
26020 billed same-day with 26055 (trigger finger release) on the same digit without modifier 59, triggering NCCI bundling edits
Routine post-op E/M visit billed within the 90-day global without modifier 24 or 25
Multiple units billed for the same session without per-digit documentation supporting separate sheath drainage
Missing laterality — payers requiring LT/RT designations reject unmodified claims for unilateral hand procedures

Frequently asked questions

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

01What is the difference between 26020, 26025, and 26030?

26020 is for tendon sheath drainage in the digit or palm. 26025 covers drainage of a single palmar bursa; 26030 covers multiple palmar bursae. The operative note must name the structure — tendon sheath vs. bursa — to support the correct code.

02Can 26020 be billed more than once on the same date?

Yes. The descriptor includes 'each,' so you can bill one unit per distinct sheath drained. Document each sheath by digit and anatomic location. Use modifier 59 on the second and subsequent units to clear NCCI edits.

03Can 26020 and 26055 be billed together on the same digit?

NCCI bundles these when performed on the same structure. If the surgeon drains a tendon sheath AND releases a trigger finger on a separate digit or distinct structure at the same session, append modifier 59 and document both sites clearly. Billing both on the same digit without a clear distinction will be denied.

04What global period applies, and what does it bundle?

26020 carries a 90-day global. That covers the day-before visit, the procedure day, and all routine post-op care through day 90 — wound checks, dressing changes, suture removal. Unrelated E/M services in the global window need modifier 24; a significant separately identifiable service on the day of surgery needs modifier 25.

05How do you bill if the patient returns to the OR for re-irrigation of the same tendon sheath during the global period?

Use modifier 78 (unplanned return to the OR for a related procedure during the postoperative period). Document why re-operation was necessary — typically persistent purulence or failure of initial drainage. Modifier 79 applies only if the return procedure is unrelated to the original.

06Is modifier 50 appropriate for bilateral tendon sheath drainage?

Yes, if the same sheath is drained bilaterally in a single session. Many payers prefer two claim lines with LT and RT rather than a single line with modifier 50 — confirm your payer's bilateral billing preference before submitting.

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 specific tendon sheath entered, digit and surface (volar/dorsal), fluid character, and each distinct sheath drained when multiple are addressed. It flags operative notes that describe only a generic 'incision and drainage' without naming the tendon sheath — the documentation gap most likely to trigger a downcode to 26010 or 10060 on audit.

See how Mira captures CPT 26020 documentation