ICD-9-CM diagnosis code (retired)
079.81 — Hantavirus infection
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 079.81
079.81 is an ICD-9-CM diagnosis code for Hantavirus infection. 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, B33.4 (Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- B33.4Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]approximate
Common questions about 079.81
What is the ICD-10 code for ICD-9 079.81?
- The GEMs map 079.81 to ICD-10-CM B33.4.
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.