ICD-10-CM 2027
ICD-10 code for virus
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Virus, viral”. Page updated September 29, 2026.
About coding virus
The official ICD-10-CM index doesn't give a single default code for virus; the code depends on the details below.
More specific virus codes (official index)
- as cause of disease classified elsewhere B97.89 — Other viral agents as the cause of diseases classified elsewhere
- respiratory syncytial virus (RSV)
- cytomegalovirus B25.9 — Cytomegaloviral disease, unspecified
- human immunodeficiency (HIV)
- infection
- respiratory syncytial (RSV)
- as cause of disease classified elsewhere B97.4 — Respiratory syncytial virus as the cause of diseases classified elsewhere
- bronchiolitis J21.0 — Acute bronchiolitis due to respiratory syncytial virus
- bronchitis J20.5 — Acute bronchitis due to respiratory syncytial virus
- bronchopneumonia J12.1 — Respiratory syncytial virus pneumonia
- otitis media H65 — Nonsuppurative otitis media
- pneumonia J12.1 — Respiratory syncytial virus pneumonia
- upper respiratory infection J06.9 — Acute upper respiratory infection, unspecified
- specified NEC B34.8 — Other viral infections of unspecified site
- swine influenza (viruses that normally cause infections in pigs) J09.X2 — Influenza due to identified novel influenza A virus with other respiratory manifestations
- West Nile (fever) A92.30 — West Nile virus infection, unspecified
- with
- complications NEC A92.39 — West Nile virus infection with other complications
- cranial nerve disorders A92.32 — West Nile virus infection with other neurologic manifestation
- encephalitis A92.31 — West Nile virus infection with encephalitis
- encephalomyelitis A92.31 — West Nile virus infection with encephalitis
- neurologic manifestation NEC A92.32 — West Nile virus infection with other neurologic manifestation
- optic neuritis A92.32 — West Nile virus infection with other neurologic manifestation
- polyradiculitis A92.32 — West Nile virus infection with other neurologic manifestation
Common questions about virus ICD-10 codes
What is the ICD-10 code for cytomegalovirus virus?
- B25.9 — Cytomegaloviral disease, unspecified.
What is the ICD-10 code for swine influenza virus?
- J09.X2 — Influenza due to identified novel influenza A virus with other respiratory manifestations.
What is the ICD-10 code for west nile virus?
- A92.30 — West Nile virus infection, unspecified.