Summary & Overview

CPT 26434: Open Repair of Distal Extensor Tendon Insertion with Graft

CPT code 26434 represents an open surgical repair of the distal insertion of an extensor tendon using sutures and a graft to prevent progressive deformity and related complications. This procedure code is used for operative management of distal extensor tendon injuries and is relevant to orthopedic and hand surgery practice nationwide. It matters nationally because accurate coding affects surgical claims processing, coverage determinations, and clinical documentation across outpatient surgery centers and hospital operating rooms.

Key payers commonly considered in national analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context for the repair, typical sites of service, and the common payer landscape relevant to claims adjudication. The publication also summarizes expected benchmarks for utilization and reimbursement patterns, highlights relevant policy considerations that influence coverage and prior authorization, and identifies documentation elements that support medical necessity for surgical tendon repair. Data not available in the input will be noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare26434CPTextensor tendon repairhand surgeryorthopedic surgeryoperative proceduresurgical codingtendon graft

Billing Code Overview

CPT code 26434 describes an open repair of the distal insertion of the extensor tendon with sutures and a graft. The procedure is performed to prevent further deformity and complications related to extensor tendon injury at its distal insertion.

Service type: Surgical repair of extensor tendon injury using open approach with suture and graft.
Typical site of service: Operative setting such as an ambulatory surgery center or hospital operating room.

Clinical & Coding Specifications

Clinical Context

A 34-year-old manual laborer presents after a laceration over the dorsum of the distal finger with loss of active extension at the distal interphalangeal joint. Examination and imaging confirm rupture/avulsion of the extensor tendon at its distal insertion with retraction and insufficient tissue for a primary end-to-end repair. The surgeon schedules an open operative repair using sutures and an interpositional graft to reconstruct the distal extensor mechanism, restore active extension, and prevent boutonnière-type deformity and secondary stiffness. The typical clinical workflow includes preoperative evaluation in the outpatient hand clinic, informed consent with discussion of risks (infection, stiffness, graft failure), regional or general anesthesia in an ambulatory surgery center or hospital operating room, meticulous debridement of the tendon ends, placement of suture repair augmented with an autograft or allograft as indicated, layered wound closure, sterile dressing and immobilization in an extension splint, postoperative hand therapy referral, and scheduled follow-up for wound check and progressive range-of-motion therapy.

Coding Specifications

Modifier	Description	When to Use
`LT`	Left side	Use when the procedure was performed on the left digit.
`RT`	Right side	Use when the procedure was performed on the right digit.
`50`	Bilateral procedure	Use when both corresponding digits on opposite hands were repaired in the same operative session and payer accepts a bilateral modifier.
`22`	Increased procedural services	Use when work or time substantially exceeds the typical service (extensive debridement, prolonged operative time).
`52`	Reduced services	Use when the procedure is partially reduced or not completed as originally planned.
`53`	Discontinued procedure	Use when the procedure is started but halted for patient-related or intraoperative reasons before completion.
`62`	Two surgeons	Use when two surgeons from different specialties work together as primary surgeons on distinct portions of the procedure.
`78`	Unplanned return to the operating room for a related procedure during the postoperative period	Use when the patient returns to the OR for a complication or related issue during the global period.
`79`	Unrelated procedure or service during the postoperative period	Use when an unrelated procedure is performed during the global period.
`26`	Professional component	Use if billing an entity that requires separation of professional and technical components; rarely applicable to surgical procedures billed by the surgeon.
`TC`	Technical component	Use when billing only the technical component of a diagnostic service related to the procedure (e.g., facility billing for intraoperative imaging).
`AS`	Ambulatory surgical center facility	Use to indicate the service was furnished in an ambulatory surgical center when required by the payer.
`22`	Increased procedural services	Use when additional work beyond typical is documented (listed intentionally for emphasis when applicable).

Taxonomy Code	Specialty	Notes
`2080S00000X`	Orthopaedic Surgery	Common specialty performing distal extensor tendon repairs of the hand and fingers.
`207P00000X`	Plastic Surgery	Hand and reconstructive plastic surgeons frequently perform complex tendon repairs and graft reconstructions.
`2084P0800X`	Hand Surgery (Orthopedics)	Subspecialty taxonomy for surgeons who concentrate on hand procedures and microsurgical tendon reconstruction.
`363L00000X`	Occupational Therapy	Providers who deliver postoperative therapy for tendon repair rehabilitation and splinting.
`3336C0002X`	Anesthesiology	Physicians who provide regional or general anesthesia services for the operative repair.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S66.121A`	Laceration of extensor tendon at forearm level, right forearm, initial encounter	Represents an acute extensor tendon laceration requiring operative repair when located distally in the forearm/ wrist region.
`S66.122A`	Laceration of extensor tendon at forearm level, left forearm, initial encounter	Same as above for the left side.
`S66.131A`	Laceration of extensor tendon at wrist and hand level, right hand, initial encounter	Directly relevant when the distal extensor tendon insertion at the finger/wrist level is injured and requires open repair with graft.
`S66.132A`	Laceration of extensor tendon at wrist and hand level, left hand, initial encounter	Same as above for the left hand.
`M24.341`	Stiffness of right hand following injury	Postoperative or post-injury stiffness that can be an indication for repair to prevent deformity and functional loss.
`S60.221A`	Traumatic amputation of fingertip, right index finger, initial encounter	Associated digital traumatic injuries may accompany tendon disruptions and necessitate combined management.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`26055`	Repair, flexor tendon, primary or secondary, hand or finger, each tendon; includes internal neurovascular repair when performed	May be performed for concomitant flexor tendon injury in the same digit or adjacent digits during the same operative session.
`26416`	Repair, extensor tendon, primary or secondary, forearm and wrist; without free graft	Used for more proximal extensor tendon repairs of the forearm or wrist when grafting is not required.
`26418`	Repair, extensor tendon, primary or secondary, forearm and wrist; with free graft (includes obtaining graft)	Used when extensor tendon reconstruction in the forearm or wrist requires a free graft; conceptually similar technique applied more proximally.
`26010`	Tendon transfer or relocation; wrist and hand	May be performed when tendon transfer is indicated instead of direct repair or grafting to restore function.
`29515`	Application of a removable forearm or hand splint (short arm)	Common postoperative service for immobilization following distal extensor tendon repair.