Surgical removal of a subfascial (intramuscular or deeper) soft tissue tumor of the abdominal wall measuring 5 cm or greater in its greatest dimension.

Verified May 8, 2026 · 6 sources ↓

Medicare: $641.63
Work RVU: 9.86
Global, days: 90
Region: Other

Drawn from CMSAAPCFindacodePayerprice

Documentation requirements

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

Source · Editorial brief grounded in 6 cited references ↓

Preoperative imaging or clinical notes confirming subfascial (intramuscular or deeper) tumor location
Specimen size documented in the operative note — greatest dimension must be 5 cm or greater to support 22901 over 22900
Pathology report submitted with the claim or available on request to confirm soft tissue tumor diagnosis
Operative note describing the surgical approach, tissue planes entered, and depth of dissection through the fascial layer
Documentation distinguishing the lesion from a subcutaneous mass to justify subfascial code selection
If modifier 22 is appended, a separate written justification of increased complexity beyond the typical procedure

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 51 Multiple procedures 59 Distinct service 62 Co-surgeons 76 Repeat, same physician 77 Repeat, another physician 78 Unplanned return — related 79 Unrelated during global 80 Assistant surgeon AS PA/NP/CNS assistant

What this code covers

Source · Editorial summary grounded in 6 cited references ↓

CPT 22901 covers open excision of a soft tissue tumor located beneath the fascia of the abdominal wall — intramuscular or deeper — when the specimen measures 5 cm or greater. The subfascial depth distinguishes this code from subcutaneous excisions (22902–22903). Size and depth together determine code selection: if the mass is subfascial but under 5 cm, use 22900 instead.

The 90-day global period applies. Routine wound checks, suture removal, and post-op visits through day 90 are bundled. Anything unrelated to the excision billed in that window requires modifier 24 (E/M) or modifier 79 (unrelated procedure in the global).

When the pathology points to sarcoma or another high-grade malignancy requiring wide margins, consider whether 22904 or 22905 (radical resection) better reflects the work performed. Billing 22901 for a procedure that required radical oncologic resection invites a modifier 22 claim at minimum — or a code change after documentation review.

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 (9.86) is the surgeon's own effort — the figure physician pay and productivity targets are built on. The total RVU (19.21) adds practice overhead and malpractice, and is what drives the Medicare payment below.

Work RVU	9.86
Practice expense RVU	6.88
Malpractice RVU	2.47
Total RVU	19.21
Medicare national rate	$641.63
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	$641.63
HOPD (APC 5073) Hospital outpatient department	$2,967.63
ASC (PI G2) Ambulatory surgical center (freestanding)	$1,248.36

Common denial reasons

The recurring reasons claims for CPT 22901 get rejected.

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

Size not documented in the operative note — payer downcodes to 22900 (under 5 cm) without a recorded measurement
Depth ambiguity: operative note describes a 'mass excision' without confirming subfascial plane, triggering a recode to subcutaneous 22902 or 22903
Pathology report absent or not linked to the claim, causing medical necessity denial for soft tissue tumor excision
Unbundling of separately billed wound closure — closure is included in the excision and not separately payable
Incorrect global period billing: E/M or related follow-up visits submitted without modifier 24 during the 90-day global window

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 6 cited references ↓

01What is the size and depth threshold that separates 22901 from 22900?

Both codes are subfascial abdominal wall excisions. Use 22900 when the tumor is under 5 cm in greatest dimension; use 22901 at 5 cm or greater. Depth alone — subfascial versus subcutaneous — separates the 22900–22901 pair from the 22902–22903 subcutaneous pair.

02When should radical resection codes 22904 or 22905 be used instead of 22901?

If the pathology is a sarcoma or other malignancy and the resection required wide oncologic margins with removal of surrounding normal tissue, 22904 (less than 5 cm) or 22905 (5 cm or greater) is the correct code family. 22901 is for excision of benign or unspecified soft tissue tumors, not radical resection.

03Is wound closure separately billable with 22901?

No. Simple and layered closure of the operative wound is included in the excision code. Only complex repair involving a separate distinct wound — not the excision site — could potentially be billed separately, and that would require modifier 59 with strong documentation.

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

All routine follow-up visits, wound checks, and stitch removals through post-op day 90 are bundled into 22901. Bill unrelated E/M services with modifier 24 and unrelated procedures with modifier 79. A related return to the OR for a complication uses modifier 78.

05Can 22901 be billed with modifier 50 for bilateral procedures?

Bilateral abdominal wall tumor excisions are anatomically possible but uncommon. If two distinct subfascial tumors were excised from opposite sides of the abdominal wall in the same session, modifier 50 applies. Document each lesion's laterality, depth, and size separately in the operative note.

06What ICD-10 diagnoses typically support 22901?

Common supporting diagnoses include D21.4 (benign neoplasm of connective and soft tissue of abdomen), C49.4 (malignant neoplasm of connective and soft tissue of abdomen), and M79.89 (other specified soft tissue disorders). The diagnosis must be consistent with a subfascial mass of the abdominal wall to avoid a mismatched CPT-ICD denial.

Sources & references

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

Mira AI Scribe

The Mira AI Scribe captures tumor depth (subfascial/intramuscular), greatest specimen dimension in centimeters, tissue planes entered, and the surgical approach from dictation — then flags if the documented size falls below the 5 cm threshold required for 22901. That prevents the most common downcode denial, where a missing or ambiguous measurement causes automatic reclassification to 22900.

See how Mira captures CPT 22901 documentation