Summary & Overview
CPT 26130: Carpometacarpal Joint Synovectomy
CPT code 26130 denotes a surgical synovectomy of the carpometacarpal joint, removing the synovial membrane where a carpal bone of the wrist meets a metacarpal bone of the hand. This procedure addresses inflammatory or degenerative synovial conditions that impair hand function or cause pain. Nationally, accurate coding of procedures like 26130 matters for procedural tracking, quality measurement, and appropriate reimbursement in hand and orthopedic surgery care pathways.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context for the procedure, typical sites of service, and the service type. The publication outlines common billing considerations and benchmarking topics relevant to payers and providers, highlights policy and coverage themes that affect how the service is paid across major national payers, and summarizes coding-related issues that can influence claims processing.
This summary is intended for a national audience of clinicians, coding professionals, billing managers, and policy analysts who need a concise reference to the clinical intent and billing context of CPT code 26130 and what to expect when this surgical service is billed to major payers.
Billing Code Overview
CPT code 26130 describes synovectomy of the carpometacarpal joint, a procedure in which the provider removes the synovium, the membrane lining the joint, from where a carpal bone of the wrist meets a metacarpal bone of the hand.
Service type: Surgical procedure focusing on joint tissue removal to address synovial inflammation or pathology.
Typical site of service: Operative setting such as an ambulatory surgery center or hospital operating room, typically performed by a hand surgeon or orthopedic surgeon.
Clinical & Coding Specifications
Clinical Context
A typical patient is a 55-year-old right-hand–dominant individual with chronic pain, stiffness, and swelling at the base of the thumb. Conservative care including activity modification, splinting, nonsteroidal anti-inflammatory drugs, and corticosteroid injection provided temporary or inadequate relief. Imaging (plain radiographs and/or MRI) shows synovitis localized to the carpometacarpal (CMC) joint without complex fracture or advanced degenerative collapse requiring joint reconstruction. The orthopedic or hand surgery team schedules a synovectomy of the CMC joint to remove inflamed synovial tissue and reduce pain and locking.
The clinical workflow includes preoperative evaluation in the outpatient clinic, informed consent, pre-op imaging review, anesthesia assessment (local/regional block or general anesthesia), intraoperative synovectomy via an open or limited incision, hemostasis, and wound closure. Postoperative care includes short-term immobilization in a thumb spica splint, pain control, wound checks, and hand therapy for range of motion and strengthening. Documentation should include indication, intraoperative findings, extent of synovectomy, laterality, anesthesia type, and any concurrent procedures.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | Applied when the procedure is performed on the left CMC joint |