ICD-9-CM diagnosis code (retired)
997.00 — Nervous system complication, unspecified
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 997.00
997.00 is an ICD-9-CM diagnosis code for nervous system complication, unspecified. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to one ICD-10-CM code, G97.81 (Other intraoperative complications of nervous system). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- G97.81Other intraoperative complications of nervous systemapproximate
Common questions about 997.00
What is the ICD-10 code for ICD-9 997.00?
- The GEMs map 997.00 to ICD-10-CM G97.81.
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.