A98 Other viral hemorrhagic fevers, not elsewhere classified

Not billable (header)Chapter 1

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

A98.0 Crimean-Congo hemorrhagic fever
A98.1 Omsk hemorrhagic fever
A98.2 Kyasanur Forest disease
A98.3 Marburg virus disease
A98.4 Ebola virus disease
A98.5 Hemorrhagic fever with renal syndrome
A98.8 Other specified viral hemorrhagic fevers

Instructional notes

Chapter 1

Excludes2Not included here: the patient may have both; report both when both are present.

carrier or suspected carrier of infectious disease (Z22.-)
certain localized infections - see body system-related chapters
infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
infectious and parasitic diseases specific to the perinatal period (P35-P39)
influenza and other acute respiratory infections (J00-J22)

Use additional codeAdd a second code for the full picture.

code to identify resistance to antimicrobial drugs (Z16.-)

Includes

diseases generally recognized as communicable or transmissible

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

chikungunya hemorrhagic fever (A92.0)
dengue hemorrhagic fever (A91)

Chapter 1: Certain infectious and parasitic diseases · A90-A99 Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.