Summary & Overview
CPT 64642: Neurolytic Destruction of Somatic Nerves in One Extremity
CPT code 64642 is a nationally recognized billing code for the destruction of somatic nerves in one extremity using neurolytic agents, such as chemical, thermal, electrical, or radiofrequency techniques. This procedure is primarily utilized in the management of spasticity and movement disorders, offering relief for patients with conditions that cause abnormal muscle tone or involuntary movements. The code is relevant to both Physical Medicine & Rehabilitation and Neurology specialties, and is typically performed in office or outpatient hospital settings.
Major payers covering this procedure include Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare. The publication provides a comprehensive overview of payer coverage, clinical indications, and related billing codes. Readers will gain insights into national benchmarks, policy updates, and the clinical context for the use of 64642, including its relationship to other neurolytic destruction codes and common diagnoses such as spasticity, dystonia, and multiple sclerosis. The summary also highlights the importance of understanding payer requirements and coding nuances for accurate billing and reimbursement.
This article serves as a resource for healthcare professionals, administrators, and policy analysts seeking up-to-date information on the utilization and coverage of CPT code 64642 across major payers, as well as its clinical applications and associated procedures.
CPT Code Overview
CPT code 64642 describes the destruction of somatic nerves in one extremity using a neurolytic agent, such as chemical, thermal, electrical, or radiofrequency methods. This procedure is commonly performed to address conditions like spasticity and is part of the Physical Medicine & Rehabilitation and Neurology service types. Typical sites of service include the office (Place of Service 11) and outpatient hospital (Place of Service 22). The procedure is designed to help manage abnormal muscle tone and movement disorders by targeting specific nerves in the upper or lower limbs.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves an adult presenting with spasticity or dystonia affecting one extremity, such as the arm or leg. The patient may have underlying neurological conditions like multiple sclerosis, hereditary spastic paraplegia, or dystonia. After evaluation by a pain medicine physician or a physical medicine & rehabilitation specialist, the patient is scheduled for a neurolytic destruction procedure targeting somatic nerves in the affected extremity. The procedure is performed in an office or outpatient hospital setting, using chemical, thermal, electrical, or radiofrequency methods to reduce spasticity and improve function. Documentation includes pre-procedure assessment, informed consent, and post-procedure follow-up for efficacy and adverse effects.
Coding Specifications
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Modifier
50(Bilateral Procedure): Used when the procedure is performed on both extremities during the same session. -
Modifier
59(Distinct Procedural Service): Used to indicate that the procedure is distinct from other services performed on the same day, such as when multiple neurolytic destruction procedures are performed on different nerves or anatomical sites.
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