Summary & Overview
CPT 25448: Intercarpal/Carpometacarpal Suspension Arthroplasty
CPT code 25448 represents suspension arthroplasty of the intercarpal or carpometacarpal joints, a surgical wrist procedure that stabilizes small carpal joints and may include interposition (such as tendon) to restore joint spacing and mobility. This procedure is clinically important for patients with degenerative or traumatic wrist joint disease where joint-preserving reconstruction is preferred over fusion.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise national overview of clinical indications and service context, payer coverage patterns and common modifiers used with the code, and operational benchmarks relevant to facility and professional billing. The publication outlines typical sites of service, common clinical scenarios prompting use of the code, and how this code fits into hand/wrist surgical service lines.
The content summarizes billing and clinical context to support coding accuracy, claims preparation, and payer discussions. Where input data is not provided, the publication notes that specific fields are not available. The focus is national in scope and intended for billing managers, surgical providers, and policy analysts seeking a practical synopsis of CPT code 25448.
Billing Code Overview
CPT code 25448 describes arthroplasty of the intercarpal or carpometacarpal joints using a suspension arthroplasty technique. The procedure stabilizes and restores spacing of small wrist joints by suspending or holding bones in place with soft tissue or implants. The service may include interposition (inserting a cushion such as tendon) to reconstruct the joint and restore mobility.
Service type: Surgical – Hand/Wrist arthroplasty (suspension arthroplasty with possible interposition)
Typical site of service: Operating room in an ambulatory surgery center or hospital outpatient/inpatient surgical setting
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is a 62-year-old right-hand dominant woman with chronic, progressive basal thumb (first carpometacarpal) osteoarthritis causing severe pain, reduced grip strength, and loss of function despite conservative care (splinting, NSAIDs, corticosteroid injection, and hand therapy). The surgical team (hand surgeon, perioperative nurse, and anesthesiologist) evaluates the patient preoperatively, obtains informed consent, and documents failed conservative management and functional limitations. In the operating room under regional block or general anesthesia, the hand surgeon performs a suspension arthroplasty of the first carpometacarpal joint: excision of the trapezium with ligament reconstruction and tendon interposition (or soft-tissue suspension) to stabilize the carpometacarpal space and restore thumb function. Intraoperative documentation includes procedure performed, laterality, implants or tendon used for suspension/interposition, estimated blood loss, and any complications. Postoperative workflow includes immediate PACU recovery, analgesia plan, immobilization in a thumb spica splint or cast, and referral to hand therapy for staged mobilization and strengthening. Follow-up visits document wound healing, range of motion, pain control, and functional improvement; additional procedures (revision, hardware removal) are documented and coded separately if performed.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | Use when the procedure is performed on the left wrist/hand. |