CPT code 64999: Unlisted procedure, nervous system

Learn about CPT code 64999, an unlisted procedure for the nervous system. Learn when to use it, how to document and bill correctly, and see related codes and FAQs.

Use Code

Frequently asked questions

CPT 64999 is used when no specific code exists to describe a nervous system procedure. It's commonly used for techniques like erector spinae plane blocks or off-label peripheral nerve treatments.

Yes. Since this is an unlisted procedure code, thorough documentation is required, including detailed procedure information, a clinical rationale, and a comparison to similar coded procedures, when applicable.

No. If ultrasound guidance is used, it should be billed separately (e.g., CPT 76942), unless the payer requires bundling or includes it in the overall reimbursement for the procedure.