CPT 23040Surgery

Exploratory shoulder surgery

CPT code 23040 covers exploratory shoulder surgery, a procedure where the surgeon opens the shoulder joint to investigate pain, instability, or suspected damage when imaging alone hasn't provided enough diagnostic information.

Showing rates for

National Average

Base Medicare rate

$710.98

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

9.75

PE RVU (NF)

10.31

MP RVU

1.92

Total RVU

21.98

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

NCCI bundling edits

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Billing tips

Always append laterality modifier (LT or RT) on initial claim submission to avoid automatic denial
Impact: Prevents 100% claim rejection and eliminates 15-30 day payment delay for resubmission
Document clear medical necessity explaining why less invasive arthroscopy (29805-29828) was inadequate or contraindicated
Impact: Reduces denial rate by 40-60%; open exploration typically scrutinized more heavily than arthroscopic approaches
If procedure converts to definitive repair during exploration, bill the therapeutic procedure code instead of 23040
Impact: Rotator cuff repair (23410-23412) reimburses $1,200-$2,400 vs $710.98 for exploration alone; cannot bill both
Verify facility vs non-facility status matches place of service code (POS 22, 24, or 21) on claim form
Impact: Both settings reimburse identically at $710.98 for 23040, but incorrect POS code triggers audits and payment delays
For Medicare patients, ensure ABN (Advanced Beneficiary Notice) is obtained if medical necessity may not be met
Impact: Allows collection from patient if Medicare denies; prevents complete loss of $710.98 payment
Link appropriate diagnosis codes documenting failed conservative treatment and inconclusive imaging findings
Impact: Claims with complete diagnosis linkage (shoulder pain + prior imaging codes) have 35% lower denial rate

Applicable modifiers

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 23040 in 2025?

The 2025 Medicare national average reimbursement for CPT 23040 is $710.98 for both facility and non-facility settings, based on 21.98 total RVUs and a conversion factor of 32.3465.

What is the difference between CPT 23040 and shoulder arthroscopy codes?

CPT 23040 is an open surgical exploration requiring a formal incision to directly visualize shoulder structures, while arthroscopy codes (29805-29828) use small portals and a camera. Open exploration is reserved for cases where arthroscopy is inadequate, contraindicated, or has already failed to identify pathology.

Can I bill CPT 23040 with a rotator cuff repair code on the same date?

No, if a definitive therapeutic procedure like rotator cuff repair is performed during the same session, you should bill only the therapeutic procedure code. The exploratory component is considered integral to the repair and bundled into the more comprehensive code.

What modifiers are required when billing CPT code 23040?

Laterality modifiers LT (left) or RT (right) are mandatory for CPT 23040. Additional modifiers like 22 (increased procedural services), 59 (distinct procedural service), or 78/79 (return to OR) may be appropriate depending on specific circumstances of the case.

How many RVUs does CPT 23040 have in 2025?

CPT 23040 has 21.98 total RVUs in 2025, consisting of 9.75 work RVUs, 10.31 practice expense RVUs, and 1.92 malpractice RVUs. Both facility and non-facility PE RVUs are identical at 10.31.

What documentation is needed to support medical necessity for CPT 23040?

Documentation must include failed conservative treatment (physical therapy, medications), inconclusive or inadequate imaging studies (MRI/CT reports), clear clinical indication for open vs arthroscopic approach, and detailed operative findings. Payers require justification for why less invasive methods were insufficient.

Do commercial insurers reimburse CPT 23040 at the same rate as Medicare?

No, commercial payers typically reimburse at 120-250% of Medicare rates. With Medicare paying $710.98, commercial reimbursement often ranges from $850 to $1,775 depending on contract negotiations, though exact rates vary by payer and geographic location.