Surgical removal of diseased or inflamed synovial lining from a metatarsophalangeal joint of the foot to reduce pain and restore function.

Verified May 8, 2026 · 6 sources ↓

Medicare: $502.35
Work RVU: 4.6
Global, days: 90
Region: Foot & ankle

Drawn from CMSAAOS

Documentation requirements

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

Source · Editorial brief grounded in 6 cited references ↓

Specify which metatarsophalangeal joint(s) were treated and confirm laterality (left vs. right foot)
Document the surgical approach and intraoperative findings describing the extent of synovial disease
Include the preoperative diagnosis with a specific ICD-10 code — inflammatory arthropathy, synovial disorder, or equivalent; not just 'foot pain'
Record failed conservative treatment (NSAIDs, injections, orthotics) that supports surgical necessity
Operative note must name the procedure as synovectomy with excision of synovial tissue, not simply 'joint debridement'
If performed with other foot procedures, document separate operative indications for each to support unbundling if applicable

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 59 Distinct service 62 Co-surgeons 78 Unplanned return — related 79 Unrelated during global LT Left side RT Right side

What this code covers

Source · Editorial summary grounded in 6 cited references ↓

CPT 28072 describes an open synovectomy of a metatarsophalangeal (MTP) joint, where the surgeon excises the inflamed or pathologic synovial membrane to relieve pain caused by inflammatory arthritis, rheumatoid disease, or other synovial disorders. The procedure is distinct from simple joint aspiration or debridement — this is a formal open excision of the joint lining itself. The 90-day global period means all routine post-op care through day 90 is bundled; any unrelated E/M or procedure in that window requires modifier 24 or 79, respectively.

Billing laterality correctly matters here. Use LT or RT to designate which foot. If both feet are done in the same operative session, report with modifier 50 on a single line item per Medicare billing rules. When 28072 is performed alongside a bunionectomy (28290–28299) on the same toe or metatarsal, NCCI policy bundles many ancillary excision codes into the bunionectomy — confirm NCCI PTP edits before stacking codes. Modifier 51 applies when 28072 is the secondary procedure in a multi-procedure session.

Indication-level ICD-10 documentation is critical. Payers routinely deny this code when the claim lacks a specific inflammatory or structural diagnosis supporting medical necessity. Rheumatoid arthritis with foot involvement, pigmented villonodular synovitis, and synovial chondromatosis are among the well-supported indications. "Foot pain" alone will not clear medical necessity review at most payers.

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 (4.6) is the surgeon's own effort — the figure physician pay and productivity targets are built on. The total RVU (15.04) adds practice overhead and malpractice, and is what drives the Medicare payment below.

Work RVU	4.6
Practice expense RVU	9.89
Malpractice RVU	0.55
Total RVU	15.04
Medicare national rate	$502.35
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	$502.35
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 28072 get rejected.

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

Medical necessity not established — diagnosis code too nonspecific (e.g., M79.671 foot pain) without documented inflammatory or structural pathology
Bundling denial when billed same-day with a bunionectomy on the ipsilateral first toe without NCCI modifier review
Missing laterality modifier causes claim to reject or pend at carriers requiring LT/RT on foot procedures
Procedure billed as bilateral without modifier 50, causing duplicate-service edit
Insufficient operative documentation — note describes debridement rather than formal synovial excision, undermining code specificity

Frequently asked questions

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

01Does 28072 carry a global period, and what does that include?

Yes — 28072 has a 90-day global period. Per CMS Medicare Claims Processing Manual Chapter 12, this bundles the day-before preoperative visit, the surgery itself, and all routine postoperative care through day 90, including wound checks and suture removal. Unrelated E/M visits in that window need modifier 24; unrelated procedures need modifier 79.

02Can 28072 be billed with a bunionectomy on the same foot?

Exercise caution. NCCI policy bundles several excision and osteotomy codes into bunionectomy codes (28290–28299) when performed on the ipsilateral first toe or metatarsal. Review the current NCCI PTP edit table at CMS before billing 28072 alongside a bunionectomy — the pairing may require a modifier or may be non-payable.

03What modifier do I use if the procedure is performed on both feet in the same session?

Report modifier 50 on a single line item per Medicare billing rules. Some commercial payers follow CPT guidelines and want two line items with LT and RT — verify payer preference before submitting.

04Which ICD-10 codes best support medical necessity for 28072?

Rheumatoid arthritis with foot involvement (M05.x7x, M06.x7x), pigmented villonodular synovitis (M12.27x), synovial chondromatosis (M67.27x), and gout with tophus or chronic synovitis patterns are well-supported. A nonspecific foot pain code alone will not satisfy medical necessity review at most payers.

05Is 28072 subject to NCCI Medically Unlikely Edits (MUE)?

Yes. All CPT codes are subject to MUE limits, which cap the maximum reportable units per beneficiary per date of service. Check the current CMS MUE table for 28072's MUE value and adjudication indicator — billing beyond the MUE requires documentation support and may require an appeal.

06What is the site-of-service impact for 28072?

There is a significant payment differential between HOPD and ASC settings — see the Site of Service comparison table on this page. The physician professional fee also differs by site under the facility vs. non-facility RVU split. Performing this in an ASC versus hospital outpatient affects both the facility payment and the surgeon's reimbursement.

Sources & references

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

Mira Scribe

From dictation, the Mira AI Scribe captures the specific MTP joint treated, laterality, extent of synovial excision, intraoperative appearance of the synovium, and the surgeon's stated indication — distinguishing inflammatory synovitis from mechanical pathology. This prevents the most common denial trigger for 28072: a vague operative note that reads as joint debridement rather than a formal synovectomy, which auditors use to downcode or deny the claim outright.

See how Mira captures CPT 28072 documentation