ICD-10-CM 2027
ICD-10 code for Zika NOS
From the official ICD-10-CM alphabetic index entry “Zika NOS”. Page updated September 29, 2026.
About coding Zika NOS
The ICD-10-CM code for Zika NOS is A92.5 (Zika virus disease). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on A92.5.
Within A92 (other mosquito-borne viral fevers), A92.5 is specifically for Zika virus disease. Related codes cover Chikungunya virus disease (A92.0), O'nyong-nyong fever (A92.1), Venezuelan equine fever (A92.2), West Nile virus infection (A92.3), Rift Valley fever (A92.4), other specified mosquito-borne viral fevers (A92.8) and mosquito-borne viral fever, unspecified (A92.9).
Don't report A92.5 together with the conditions in its Excludes1 note: congenital Zika virus disease (P35.4).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
More specific Zika NOS codes (official index)
- congenital P35.4 — Congenital Zika virus disease
Don't confuse with (Excludes1 for A92.5)
- congenital Zika virus disease (P35.4)
Common questions about Zika NOS ICD-10 codes
What is the ICD-10 code for Zika NOS?
- A92.5 — Zika virus disease. More specific codes apply when the documentation supports them: P35.4.
What is the ICD-10 code for congenital zika nos?
- P35.4 — Congenital Zika virus disease.
Is A92.5 billable?
- Yes. A92.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A92.5 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A92.5 as a principal diagnosis.
Is A92.5 a CC or MCC?
- A92.5 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.