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CPT 64835: Repair of Median Nerve Branch for Thumb Function
CPT code 64835 represents surgical repair of a branch of the median nerve that innervates muscles responsible for thumb movement. This microsurgical procedure aims to restore sensory and/or motor function after traumatic or iatrogenic nerve injury and is an important code for hand and peripheral nerve surgeons, hospitals, and payers involved in upper-extremity trauma care. Nationally, timely and appropriate nerve repair affects functional outcomes, rehabilitation needs, and postacute resource use.
Key payers included in coverage and benchmarking discussions are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides a clinical and billing-focused view useful to clinicians, coding professionals, and policy analysts.
Readers will learn: the clinical context for using CPT code 64835, typical sites of service and care pathways, and the implications for coding and billing workflows. Where available, benchmark and coverage patterns for major national payers are summarized alongside notes on documentation elements critical to claim support. Data not available in the input is noted where applicable.
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Billing Code Overview
CPT code 64835 describes surgical repair of a branch of the median nerve that supplies muscles involved in thumb movement. The procedure restores motor and/or sensory function after nerve injury or transection and focuses on reconstruction of the distal median nerve branches affecting thumb mobility.
Service type: Nerve repair / peripheral nerve surgery
Typical site of service: Hospital outpatient department or ambulatory surgery center; occasionally inpatient if clinical complexity requires admission