ICD-9-CM diagnosis code (retired)
794.02 — Nonspecific abnormal electroencephalogram [EEG]
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 794.02
794.02 is an ICD-9-CM diagnosis code for nonspecific abnormal electroencephalogram [EEG]. 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, R94.01 (Abnormal electroencephalogram [EEG]). The match is exact.
ICD-10-CM equivalents
- R94.01Abnormal electroencephalogram [EEG]exact match
Common questions about 794.02
What is the ICD-10 code for ICD-9 794.02?
- The GEMs map 794.02 to ICD-10-CM R94.01.
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.