CPT 23470Surgery

Reconstruct shoulder joint

CPT code 23470 covers surgical reconstruction of the shoulder joint, typically performed to restore function after severe injury, arthritis, or previous failed surgery. This is a major reconstructive procedure that rebuilds damaged or deteriorated shoulder joint structures.

Showing rates for

National Average

Base Medicare rate

$1,175.80

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

17.89

PE RVU (NF)

14.96

MP RVU

3.5

Total RVU

36.35

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

NCCI bundling edits

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Billing tips

Document specific structures reconstructed (capsule, labrum, bone, ligaments) and surgical approach (open vs arthroscopic-assisted) to differentiate from simple arthroscopic repairs (29806-29828)
Impact: Prevents downcoding to lower-paying arthroscopic codes which reimburse $400-800 less; ensures full $1175.8 payment
Verify global period (90 days) and avoid billing E/M services during postoperative period unless unrelated or use modifier 24 for truly separate evaluations
Impact: Prevents automatic denials of postoperative visits; each inappropriate E/M claim costs time in appeals and delays payment
When billing modifier 22, include detailed comparison of typical procedure elements versus actual increased complexity in operative report; consider percentage increase documentation (e.g., '40% additional time due to extensive scarring')
Impact: Increases approval rate for modifier 22 claims from typical 30% to 60-70%, securing additional $235-353 per case
Submit ASC claims with appropriate facility codes; ensure hospital outpatient claims use proper revenue codes (360-361 for OR) to match 23470
Impact: Facility coding errors cause payment delays of 30-60 days and may require claim resubmission; proper coding ensures timely $1175.8 payment
Distinguish 23470 from arthroplasty codes (23472 for hemiarthroplasty at $1231.45, 23474 for total arthroplasty at $1355.18) based on whether prosthetic components are implanted
Impact: Ensures correct code selection; using 23470 when arthroplasty performed results in $55-180 underpayment; reverse causes audit risk
For revision cases, document what previous procedures were performed and why reconstruction is now necessary; append modifier 22 if significantly more complex than primary reconstruction

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 23470 in 2025?

The 2025 Medicare national average reimbursement for CPT 23470 is $1175.8 for both facility and non-facility settings. This is based on 36.35 total RVUs (17.89 work RVU + 14.96 PE RVU + 3.5 MP RVU) multiplied by the 2025 conversion factor of 32.3465.

What is the difference between CPT 23470 and shoulder arthroscopy codes?

CPT 23470 describes open shoulder joint reconstruction involving extensive rebuilding of joint structures, while arthroscopy codes (29806-29828) represent minimally invasive repairs through small incisions. Code 23470 is used for more severe damage requiring direct visualization and reconstruction beyond arthroscopic capabilities, typically reimbursed $400-800 higher than arthroscopic alternatives.

Can CPT 23470 be billed with shoulder arthroplasty codes?

No, CPT 23470 should not be billed with arthroplasty codes (23472 hemiarthroplasty or 23474 total arthroplasty) as they are mutually exclusive procedures. Code 23470 is for reconstruction without prosthetic implantation, while arthroplasty involves replacing joint surfaces with prosthetic components. Using the wrong code can result in underpayment or overpayment subject to audit.

What modifiers are required when billing CPT 23470?

Laterality modifiers LT (left) or RT (right) are required for every 23470 claim. Additional modifiers may include 22 for increased complexity with appropriate documentation, 50 for bilateral procedures, 51 for multiple procedures, 59 for distinct procedural services, or 78 for return to OR during global period.

How many RVUs is CPT code 23470 worth in 2025?

CPT 23470 has 36.35 total RVUs in 2025, consisting of 17.89 work RVUs, 14.96 practice expense RVUs (both facility and non-facility), and 3.5 malpractice RVUs. This makes it a high-value surgical procedure reflecting the complexity and physician work involved.

What documentation is needed to support medical necessity for CPT 23470?

Documentation must include pre-operative imaging showing structural damage, clinical notes demonstrating failed conservative treatment (typically 6+ months of PT, medications, injections), detailed operative report describing extent of reconstruction, and clear indication why less invasive repair or more extensive arthroplasty was not appropriate. Previous surgical failures should be documented if applicable.

What is the global period for CPT 23470?

CPT 23470 has a 90-day global surgical period, meaning routine postoperative care for 90 days after surgery is included in the reimbursement. E/M services during this period are generally not separately billable unless unrelated to the surgery (modifier 24) or represent treatment of complications (modifier 24 or 78 depending on whether return to OR is needed).