CPT 25394 Carpal Bone Reduction Reimbursement | OpenPayer

Summary & Overview

CPT 25394: Carpal Bone Reduction/Excision Surgery

CPT code 25394 denotes a surgical excision of part of a carpal bone to reduce its size. The procedure is relevant nationally as a specialized orthopedic/hand surgery intervention for patients with symptomatic carpal bone pathology that may cause pain, impingement, or functional impairment. Management of these procedures affects surgical utilization, patient access to specialty care, and payer coverage policies for hand and wrist surgery.

Key payers referenced in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise review of the clinical context for CPT code 25394, typical sites of service, and the service type. The publication provides benchmarks and comparisons across major payers where available, summarizes relevant policy or coverage considerations impacting authorization and payment, and outlines coding and billing context clinicians and billing staff should recognize when preparing claims.

The content is intended for a national audience of clinicians, revenue cycle professionals, and policy analysts seeking an authoritative, practical overview of CPT code 25394, its clinical role, and payer coverage landscape. Data not available in the input is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 25394carpal bone surgeryhand surgeryorthopedic surgerysurgical procedurewrist surgeryoperative codingreimbursement

Billing Code Overview

CPT code 25394 describes a surgical procedure in which the provider removes a portion of bone to reduce the size of a carpal bone in the wrist. This procedure is a surgical bone reduction of the carpal bone, typically performed to relieve pain, restore anatomy, or improve wrist function when a carpal bone is enlarged or misshapen.

Service type: Surgical — orthopedic/hand surgery

Typical site of service: Operating room or ambulatory surgical center, commonly performed under regional or general anesthesia with appropriate surgical and sterile support.

Clinical & Coding Specifications

Clinical Context

A 45-year-old right-hand-dominant manual laborer presents with chronic wrist pain, limited range of motion, and radiographic evidence of symptomatic carpal bone impingement (for example, a painful, enlarged lunate or pisiform causing joint conflict). Conservative care including splinting, NSAIDs, and corticosteroid injections failed to relieve symptoms. After evaluation by an orthopedic hand surgeon, the decision is made to perform a carpal bone excision procedure to remove a portion of the offending carpal bone to reduce size and relieve impingement.

Preoperative workflow includes history and physical, informed consent, preoperative imaging (wrist X-ray and often CT or MRI to define bone morphology), and anesthesia assessment. Typical intraoperative steps: regional block or general anesthesia, sterile preparation of the wrist, exposure of the target carpal bone, resection of the indicated bony fragment with preservation of adjacent articular surfaces and soft tissues, hemostasis, possible temporary fixation or soft-tissue repair if indicated, and wound closure. Postoperative workflow includes recovery from anesthesia, pain control, immobilization in a splint or cast, instructions for elevation and wound care, and scheduled hand therapy and follow-up for suture removal and functional recovery.

Typical site of service: ambulatory surgery center or hospital outpatient surgery unit. Service type: surgical, operative hand/wrist procedure. Typical patient scenario: symptomatic carpal bone impingement or deformity refractory to nonoperative management, requiring partial carpal bone excision to reduce size and alleviate pain and mechanical limitation.

Coding Specifications

Modifier	Description	When to Use

CPT 25260: Flexor Tendon Repair, Forearm or Wrist

CPT-25490-RADIUS-DEFECT-FIXATION-IMPLANT-RECONSTRUCTION

CPT 25490: Radius Defect Fixation with Internal Implants

CPT-25448-INTERCARPAL-CARPOMETACARPAL-SUSPENSION-ARTHROPLASTY

CPT 25448: Intercarpal/Carpometacarpal Suspension Arthroplasty

CPT-25335-WRIST-CENTRALIZATION-FOR-RADIAL-CLUB-HAND

CPT 25335: Wrist Centralization for Radial Club Hand

CPT-25420-FOREARM-OSTEOTOMY-AND-BONE-GRAFTING-RADIUS-ULNA-NONUNION-MALUNION

CPT 25420: Forearm Osteotomy and Autogenous Bone Grafting for Radius and Ulna

CPT-25443-SCAPHOID-PROSTHESIS-IMPLANTATION-WRIST

CPT 25443: Scaphoid Prosthesis Implantation, Wrist

CPT-25447-INTERPOSITION-ARTHROPLASTY-INTERCARPAL-CARPOMETACARPAL-JOINT

CPT 25447: Interposition Arthroplasty of Intercarpal or Carpometacarpal Joint

CPT-25275-EXTENSOR-TENDON-REPAIR-WRIST-FOREARM-GRAFT

CPT 25275: Extensor Tendon Repair of Forearm/Wrist with Tissue Graft

CPT-25400-FOREARM-OSTEOTOMY-FOR-NONUNION-MALUNION-RADIUS-ULNA

CPT 25400: Osteotomy and Fixation for Radius or Ulna Nonunion/Malunion

CPT-25274-DELAYED-EXTENSOR-TENDON-REPAIR-WITH-AUTOLOGOUS-GRAFT

CPT 25274: Delayed Extensor Tendon/Muscle Repair with Autologous Graft

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Taxonomy Code	Specialty	Notes
`207100000X`	Orthopedic Surgery	Hand and wrist surgeons commonly perform carpal bone resections.
`207PX0008X`	Hand Surgery	Fellowship-trained hand surgeons specifically manage complex carpal pathology.
`208000000X`	General Surgery	Some general surgeons with hand specialization may perform wrist procedures in select settings.
`163W00000X`	Physical Therapy	Postoperative hand therapists provide rehabilitation following the procedure.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`M25.611`	Pain in right wrist	Common presenting symptom prompting evaluation for carpal bone impingement.
`M25.612`	Pain in left wrist	Common presenting symptom prompting evaluation for carpal bone impingement.
`M19.041`	Primary osteoarthritis, right wrist	Degenerative changes can lead to painful enlarged carpal bone and need for resection.
`M19.042`	Primary osteoarthritis, left wrist	Degenerative changes can lead to symptomatic carpal bone deformity.
`M67.41`	Other ganglion, right wrist and hand	Ganglion cysts adjacent to carpal bones may require concomitant excision with bone resection.
`M67.42`	Other ganglion, left wrist and hand	Ganglion cysts adjacent to carpal bones may require concomitant excision with bone resection.
`S62.101A`	Fracture of unspecified carpal bone, right wrist, initial encounter for closed fracture	Post-traumatic deformity or nonunion of a carpal bone can necessitate partial excision.
`S62.102A`	Fracture of unspecified carpal bone, left wrist, initial encounter for closed fracture	Post-traumatic deformity or symptomatic fragment may require resection.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`25394`	Partial excision, carpal bone; resection of a portion of a carpal bone to reduce size	Primary procedure: direct coding descriptor for partial carpal bone excision.
`20680`	Removal of implant; deep (e.g., buried wires, pins)	May be performed if prior hardware in the wrist needs removal before or during carpal bone resection.
`25120`	Excision, lesion of tendon sheath (e.g., ganglion)	May be performed concurrently if a symptomatic ganglion adjacent to the carpal bone is present.
`26160`	Arthrotomy, radiocarpal joint, with or without synovectomy; with implantation or microfracture (limited)	May be performed when joint inspection or synovectomy is needed in association with carpal bone resection.
`64721`	Neuroplasty and/or transposition; major peripheral nerve (e.g., ulnar nerve at wrist)	May be performed if concomitant nerve compression symptoms require decompression during the same operative session.
`29848`	Arthroscopy, wrist, surgical; synovectomy, partial synovectomy	May be performed as a minimally invasive alternative or adjunct to open partial carpal bone excision for diagnostic or therapeutic purposes.

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