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  5. Other mosquito-borne viral fevers (A92)

Other mosquito-borne viral fevers (A92)

ICD-10 code A92 covers a group of viral fevers transmitted by mosquitoes, including well-known diseases like chikungunya, West Nile virus infection, and Zika virus disease. These codes help identify specific mosquito-borne viral infections for accurate diagnosis and treatment.

The section includes codes such as A92.0 for Chikungunya virus disease, also called chikungunya fever, and A92.3 for West Nile virus infection, which has further subcodes depending on neurological involvement like encephalitis (A92.31) or meningitis (A92.32). A92.5 identifies Zika virus disease, important for infections occurring during pregnancy. Other codes specify less common mosquito-borne viral fevers, including Venezuelan equine fever (A92.2), Rift Valley fever (A92.4), and a broad category for other specified fevers like Sindbis or Mayaro virus (A92.8). The A92.9 code is reserved for unspecified mosquito-borne viral fevers. Incorporating these terms and codes facilitates precise classification of mosquito-transmitted viral diseases in clinical documentation and medical coding workflows, ensuring appropriate patient care and reporting.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • Ross River disease B33.1

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Chikungunya Fever

An acute infection caused by a mosquito-borne alphavirus CHIKUNGUNYA VIRUS characterized by RASH; FEVER; JOINT PAINS; CONJUNCTIVITIS; MENINGOENCEPHALITIS; LYMPHOPENIA; and THROMBOCYTOPENIA.

Phlebovirus

A genus of the family BUNYAVIRIDAE comprising many viruses, most of which are transmitted by Phlebotomus flies and cause PHLEBOTOMUS FEVER. The type species is RIFT VALLEY FEVER VIRUS.

Rift Valley Fever

An acute infection caused by the RIFT VALLEY FEVER VIRUS, an RNA arthropod-borne virus, affecting domestic animals and humans. In animals, symptoms include HEPATITIS; abortion (ABORTION, VETERINARY); and DEATH. In humans, symptoms range from those of a flu-like disease to hemorrhagic fever, ENCEPHALITIS, or BLINDNESS.

Rift Valley fever virus

A mosquito-borne species of the PHLEBOVIRUS genus found in eastern, central, and southern Africa, producing massive hepatitis, abortion, and death in sheep, goats, cattle, and other animals. It also has caused disease in humans.