ICD-9-CM diagnosis code (retired)
333.92 — Neuroleptic malignant syndrome
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 333.92
333.92 is an ICD-9-CM diagnosis code for neuroleptic malignant syndrome. 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, G21.0 (Malignant neuroleptic syndrome). The match is exact.
ICD-10-CM equivalents
- G21.0Malignant neuroleptic syndromeexact match
Common questions about 333.92
What is the ICD-10 code for ICD-9 333.92?
- The GEMs map 333.92 to ICD-10-CM G21.0.
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.