ICD-9-CM diagnosis code (retired)
066.49 — West Nile Fever with other complications
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 066.49
066.49 is an ICD-9-CM diagnosis code for West Nile Fever with other complications. 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, A92.39 (West Nile virus infection with other complications). The match is exact.
ICD-10-CM equivalents
- A92.39West Nile virus infection with other complicationsexact match
Common questions about 066.49
What is the ICD-10 code for ICD-9 066.49?
- The GEMs map 066.49 to ICD-10-CM A92.39.
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.