04 Operations On Cranial And Peripheral Nerves 
04.0 Incision, Division, And Excision Of Cranial And Peripheral Nerves 
04.01 Excision of acoustic neuroma convert 04.01 to ICD-10-PCS 04.02 Division of trigeminal nerve convert 04.02 to ICD-10-PCS 04.03 Division or crushing of other cranial and peripheral nerves convert 04.03 to ICD-10-PCS 04.04 Other incision of cranial and peripheral nerves convert 04.04 to ICD-10-PCS 04.05 Gasserian ganglionectomy convert 04.05 to ICD-10-PCS 04.06 Other cranial or peripheral ganglionectomy convert 04.06 to ICD-10-PCS
04.07 Other excision or avulsion of cranial and peripheral nerves convert 04.07 to ICD-10-PCS 04.1 Diagnostic Procedures On Peripheral Nervous System 04.11 Closed [percutaneous] [needle] biopsy of cranial or peripheral nerve or ganglion convert 04.11 to ICD-10-PCS 04.12 Open biopsy of cranial or peripheral nerve or ganglion convert 04.12 to ICD-10-PCS 04.19 Other diagnostic procedures on cranial and peripheral nerves and ganglia convert 04.19 to ICD-10-PCS 04.2 Destruction of cranial and peripheral nerves convert 04.2 to ICD-10-PCS 04.3 Suture of cranial and peripheral nerves convert 04.3 to ICD-10-PCS 04.4 Lysis Of Adhesions And Decompression Of Cranial And Peripheral Nerves 04.41 Decompression of trigeminal nerve root convert 04.41 to ICD-10-PCS 04.42 Other cranial nerve decompression convert 04.42 to ICD-10-PCS 04.43 Release of carpal tunnel convert 04.43 to ICD-10-PCS 04.44 Release of tarsal tunnel convert 04.44 to ICD-10-PCS 04.49 Other peripheral nerve or ganglion decompression or lysis of adhesions convert 04.49 to ICD-10-PCS 04.5 Cranial or peripheral nerve graft convert 04.5 to ICD-10-PCS 04.6 Transposition of cranial and peripheral nerves convert 04.6 to ICD-10-PCS 04.7 Other Cranial Or Peripheral Neuroplasty 04.71 Hypoglossal-facial anastomosis convert 04.71 to ICD-10-PCS 04.72 Accessory-facial anastomosis convert 04.72 to ICD-10-PCS 04.73 Accessory-hypoglossal anastomosis convert 04.73 to ICD-10-PCS 04.74 Other anastomosis of cranial or peripheral nerve convert 04.74 to ICD-10-PCS 04.75 Revision of previous repair of cranial and peripheral nerves convert 04.75 to ICD-10-PCS 04.76 Repair of old traumatic injury of cranial and peripheral nerves convert 04.76 to ICD-10-PCS 04.79 Other neuroplasty convert 04.79 to ICD-10-PCS 04.8 Injection Into Peripheral Nerve 04.80 Peripheral nerve injection, not otherwise specified convert 04.80 to ICD-10-PCS 04.81 Injection of anesthetic into peripheral nerve for analgesia convert 04.81 to ICD-10-PCS 04.89 Injection of other agent, except neurolytic convert 04.89 to ICD-10-PCS 04.9 Other Operations On Cranial And Peripheral Nerves 
04.91 Neurectasis convert 04.91 to ICD-10-PCS 04.92 Implantation or replacement of peripheral neurostimulator lead(s) convert 04.92 to ICD-10-PCS 04.93 Removal of peripheral neurostimulator lead(s) convert 04.93 to ICD-10-PCS 04.99 Other operations on cranial and peripheral nerves convert 04.99 to ICD-10-PCS