Open capsulorrhaphy of the glenohumeral joint for multidirectional instability, involving capsular repair and tightening to correct hyperlaxity.

Verified May 8, 2026 · 8 sources ↓

Medicare: $1,034.76
Total RVUs: 30.98
Global, days: 90
Region: Shoulder

Drawn from AAPCMdclarityKzanowHealthcareinspiredllcFindacode

Documentation requirements

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

Source · Editorial brief grounded in 8 cited references ↓

Diagnosis of multidirectional instability documented in the H&P and operative note — anterior-only or posterior-only instability points to 23465 or 23462 instead
Operative note must name the specific capsulorrhaphy technique (e.g., inferior capsular shift, T-plasty) and describe capsular incision, repair, and degree of tightening
Laterality documented in both the operative report and the procedure title — required for LT/RT modifier application
Failure of conservative treatment (physical therapy, activity modification) documented prior to surgical authorization
If modifier 22 is appended, the operative note must quantify increased complexity — extended operative time, scarring, prior surgery, or anatomic anomaly
If a second procedure is billed same-day, documentation must clearly distinguish it as a separate, distinct service from the capsulorrhaphy to support modifier 59

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 24 Unrelated E/M during global 51 Multiple procedures 58 Staged or related 59 Distinct service 78 Unplanned return — related 79 Unrelated during global LT Left side RT Right side 50 Bilateral procedure

What this code covers

Source · Editorial summary grounded in 8 cited references ↓

CPT 23466 covers open surgical repair of the glenohumeral joint capsule performed to address multidirectional instability (MDI) — a condition where the shoulder dislocates or subluxates in more than one plane due to excessive capsular laxity. The surgeon repairs the torn or attenuated capsule and tightens it to restore normal joint constraint. This is the most comprehensive of the open capsulorrhaphy codes (23462, 23465, 23466), and per NCCI edits, these three codes are mutually exclusive. Bill only 23466 when the operative note documents MDI correction, even if elements of anterior or posterior-only techniques were incorporated.

The 90-day global period means all routine post-op visits, wound checks, and stitch removals through day 90 are bundled. Separate E/M services during the global require modifier 24 (unrelated) or modifier 25 (significant, separately identifiable — applicable only same-day pre-op). The open capsulorrhaphy code family (23450–23466) is the open-procedure counterpart to arthroscopic capsulorrhaphy (29806). Do not bill both for the same shoulder on the same date — NCCI bundles them. If a concomitant, distinct arthroscopic procedure is performed and genuinely separate, modifier 59 with thorough documentation is required and payer-specific rules apply.

RVU & reimbursement

Component RVUs and Medicare national rate. Actual payment varies by GPCI locality.

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	15.41
Practice expense RVU	12.43
Malpractice RVU	3.14
Total RVU	30.98
Medicare national rate	$1,034.76
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	$1,034.76
HOPD (APC 5114) Hospital outpatient department	$7,413.38
ASC (PI A2) Ambulatory surgical center (freestanding)	$3,695.53

Common denial reasons

The recurring reasons claims for CPT 23466 get rejected.

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

Billing 23466 alongside 23462 or 23465 for the same shoulder — NCCI treats these as mutually exclusive; only the most comprehensive code is payable
Missing or vague laterality — claims without LT or RT modifier are rejected by many payers and some Medicare contractors
Diagnosis mismatch — submitting 23466 with an ICD-10 code that describes anterior-only or posterior-only instability instead of multidirectional instability
Unbundling 23466 with arthroscopic capsulorrhaphy (29806) for the same shoulder without a valid modifier and distinct documentation supporting a separate service
Post-op E/M visits billed without modifier 24 during the 90-day global period

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 8 cited references ↓

01Can I bill 23466 and 23465 together if the surgeon addressed both anterior and multidirectional instability components?

No. CPT codes 23462, 23465, and 23466 are mutually exclusive per NCCI. They represent alternative techniques for the same pathology. Bill only 23466 — the most comprehensive code — when MDI is the primary indication, regardless of which technical elements were used.

02Can 23466 be billed with arthroscopic capsulorrhaphy (29806) if the surgeon converted or added an open component?

Not without strong justification. NCCI bundles open and arthroscopic capsulorrhaphy for the same shoulder. If a genuinely distinct, separately documented procedure warrants unbundling, modifier 59 is required, but expect scrutiny. Payer rules vary — verify before billing.

03What ICD-10 codes support 23466?

Multidirectional instability of the shoulder (M25.31x for pain with instability context, or more specifically glenohumeral instability codes under M24.31x) should align with the diagnosis. Confirm the ICD-10 code reflects multidirectional — not unidirectional — instability to match 23466's clinical indication.

04Does 23466 require prior authorization, and what should the auth request include?

Most commercial payers require prior auth for open shoulder reconstruction. The request should include the MDI diagnosis, documentation of failed conservative care (typically 3–6 months of PT), imaging findings, and the planned procedure. Some payers also want instability testing results.

05How does the 90-day global affect billing for shoulder rehabilitation visits after 23466?

Routine post-op visits through day 90 are bundled — don't bill separately. Physical therapy billed by a separate therapist is not affected by the surgeon's global. If the surgeon provides a visit for a new, unrelated problem during the global, append modifier 24 and document that the visit was unrelated to the shoulder capsulorrhaphy.

06When is modifier 22 appropriate for 23466?

Modifier 22 is appropriate when the operative note documents significantly increased work — prior failed capsulorrhaphy, extensive scar tissue, anatomic distortion, or substantially prolonged operative time. Attach a cover letter quantifying the additional work and time. Most payers require the note to support at least 20–25% additional effort, and reimbursement is not guaranteed.

Sources & references

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

Mira AI Scribe

Mira's AI scribe captures the instability pattern (multidirectional vs. unidirectional), the named capsulorrhaphy technique, laterality, structures repaired, and degree of capsular imbrication directly from dictation. That detail locks in 23466 over 23462 or 23465, satisfies medical necessity for MDI, and gives auditors the technique-specific language they look for — preventing downcoding to a less comprehensive capsulorrhaphy code.

See how Mira captures CPT 23466 documentation