ICD-9-CM procedure code (retired)
04.02 — Division of trigeminal nerve
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-PCS equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 04.02
04.02 is an ICD-9-CM procedure code for division of trigeminal nerve. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-PCS took over.
The CMS General Equivalence Mappings translate it to 3 ICD-10-PCS codes, such as 008K0ZZ (Division of Trigeminal Nerve, Open Approach), 008K3ZZ (Division of Trigeminal Nerve, Percutaneous Approach) and 008K4ZZ (Division of Trigeminal Nerve, Percutaneous Endoscopic Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 04.02
What is the ICD-10 code for ICD-9 04.02?
- The GEMs map 04.02 to ICD-10-PCS 008K0ZZ, 008K3ZZ and 008K4ZZ.
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.