CPT code 64400: Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic procedures on the somatic nerves

Understand CPT code 64400 for trigeminal nerve injections, including billing rules and documentation guidelines. Improve your billing accuracy today.

Use Code

Frequently asked questions

CPT 64400 refers specifically to injections targeting branches of the trigeminal nerve. In contrast, CPT 64450 applies to injections targeting other peripheral nerve branches not specifically listed elsewhere in the CPT manual.

Yes, CPT 64400 may be billed multiple times if injections target separate, distinct trigeminal nerve branches. Use Modifier 59 to indicate distinct procedural services clearly.

No, CPT 64400 specifically covers trigeminal nerve blocks. For facial nerve injections, use CPT 64402.