AMA CPT® Assistant - 2009 Issue 1 (January)

Plantar Common Digital Nerve Injection Procedures-Codes 64455 and 64632 (January 2009)

January 2009 page 6 Coding Communication:Plantar Common Digital Nerve Injection Procedures-Codes 64455 and 64632 Plantar interdigital neuroma of the foot, often called "Morton's neuroma" a common cause of forefoot pain and paresthesia. It is thought to be due to interdigital nerve compression caused by either entrapment of the proper digital nerve as it passes between the metatarsal heads and beneath the intermetatarsal ligament or an intermetatarsal bursa overlying the nerve causing nerve compression. With time, the entrapped nerve undergoes degenerative vascular changes, axonal demyelination, and, in some cases, inflammatory changes. Associated findings include adjacent fibrous and fatty tissue and...

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CPT® Assistant content is the official source for CPT® coding guidance. It is an instrumental tool when appealing insurance denials and validating coding to auditors. Monthly issues and an extensive archive provide comprehensive guidance on proper CPT® coding for past, present and upcoming code set releases. Archives date back to 1990 for historical use of codes, changes, rationales, coding tips and trends in the industry.

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