CPT 15937Surgery

Exc sac pr ulc prep mus ostc

CPT 15937 covers the surgical removal of a severe pressure ulcer (bedsore) over the sacrum (tailbone area) along with preparation of underlying muscle or bone for reconstruction with a flap closure.

Showing rates for

National Average

Base Medicare rate

$961.01

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

15.14

PE RVU (NF)

MP RVU

2.57

Total RVU

29.71

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

Loading bundling edits…

Billing tips

Document exact ulcer stage (III or IV) and all tissue layers excised including notation of ostectomy if performed
Impact: Missing ulcer stage documentation is leading cause of downcoding to simpler debridement codes worth $200-400 less; prevents $500+ reimbursement loss
Separately report the muscle flap closure code (15734-15738) as this code covers only excision and preparation, not the actual flap closure
Impact: Flap closure codes add $800-2,500 depending on complexity; failure to bill both components results in 50%+ revenue loss
Use modifier 22 when operative time exceeds 3 hours or extensive ostectomy of sacrum is required; attach operative report and letter of medical necessity
Impact: Successful modifier 22 appeals can increase payment by $192-$480 (20-50% above base rate)
Verify medical necessity documentation includes failed conservative treatment for minimum 30 days including specialty mattress, repositioning protocols, and wound care
Impact: Absence of conservative treatment documentation triggers medical necessity denials; can result in 100% claim denial ($961.01 loss)
Bill in facility setting when possible as both facility and non-facility rates are identical at $961.01, but facility provides additional support for complex cases
Impact: Unlike most codes with rate differentials, this code has no financial disadvantage to facility billing while providing better resource access
Photograph ulcer preoperatively and document measurements (length, width, depth, undermining) in operative report to support code selection
Visual documentation reduces audit risk and supports medical necessity; prevents post-payment recoupment averaging $961.01 per case

Live Field Datano reports yet

Real billers contribute denial patterns and appeal strategies for this code. Once 5+ reports come in, you’ll see live aggregated data here — the only place this exists, free.

Working with CPT 15937?

Get the free Revenue Protection Toolkit — the denial triggers, modifier pitfalls, and bundling conflicts that quietly cost you reimbursement. Instant download.

Help build the field knowledge

MedPayIQ gets smarter as billers contribute. If you've had this code denied, share what happened so others learn from it. Anonymous, no patient info.

Related actions

Frequently asked questions

What is the Medicare reimbursement for CPT 15937 in 2025?

The 2025 Medicare national average reimbursement for CPT 15937 is $961.01 for both facility and non-facility settings. This rate is based on 29.71 total RVUs (15.14 work RVU + 12.00 PE RVU + 2.57 MP RVU) multiplied by the 2025 conversion factor of 32.3465.

Can I bill CPT 15937 with a muscle flap closure code on the same day?

Yes, CPT 15937 covers only the excision and preparation of the ulcer site with muscle flap preparation. The actual muscle flap advancement or rotation closure should be separately reported using codes 15734-15738 depending on the size and complexity of the flap. Use modifier 59 or X-modifiers if needed to override bundling edits.

What documentation is required to support medical necessity for CPT 15937?

Documentation must include pressure ulcer stage (typically III or IV), anatomic location, measurements, failed conservative treatment for at least 30 days (wound care, specialty surfaces, repositioning), medical comorbidities affecting healing, all tissue layers excised including muscle involvement, and ostectomy details if bone was removed. Preoperative photographs strengthen the claim.

What is the difference between CPT 15937 and simpler debridement codes?

CPT 15937 is a definitive surgical excision with muscle flap preparation and possible ostectomy, while debridement codes (11042-11047) represent removal of devitalized tissue only. Code 15937 requires excision to muscle layer with preparation of viable muscle for flap closure and carries significantly higher reimbursement ($961.01 vs. $200-400 for debridement).

How many RVUs is CPT 15937 worth in 2025?

CPT 15937 has 29.71 total RVUs in 2025, consisting of 15.14 work RVUs, 12.00 practice expense RVUs (both facility and non-facility), and 2.57 malpractice RVUs. This makes it a high-value surgical procedure reflecting the complexity and time required.

When should I use modifier 22 with CPT 15937?

Use modifier 22 when the procedure requires significantly greater work than typical, such as operative time exceeding 3 hours, extensive ostectomy of multiple sacral prominences, severe adhesions from prior surgery, or massive ulcer requiring extensive undermining. Document additional time and complexity in operative report and submit comparative statement showing how case exceeded typical work. Potential payment increase is 20-50% ($192-$480).

What are common denial reasons for CPT 15937 claims?

Common denials include: insufficient documentation of failed conservative treatment (medical necessity denial), inadequate operative notes failing to document muscle layer excision and flap preparation (downcoding to debridement), bundling with flap closure codes when modifier not used, and global period denials when performed within 90 days of previous surgery. Each denial type requires specific appeal documentation addressing the deficiency.