All ICD10 Codes
A98Not billable, use a more specific code below

Other viral hemorrhagic fevers, not elsewhere classified

In Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99), chapter 1: Certain Infectious and Parasitic Diseases

7 billable codes under A98: 5 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.

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Instructional notes

Excludes1: not coded here, use a different code

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

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Rules for coding infections and parasitic diseases, including HIV, organism and drug resistance codes, sepsis and septic shock, MRSA, Zika, and COVID-19.

Read Section I.C.1 (page 19)

All codes under A98

A98 can't be used on a claim. Pick a billable code below; grey headings group them.

A98 MS-DRGs

As the principal diagnosis, the billable codes under A98 group to MS-DRG 865, 866, 689, or 690 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Hemorrhagic Fevers

Viral hemorrhagic fevers (VHFs) are a group of illnesses caused by four families of viruses. These include the Ebola and Marburg, Lassa fever, and yellow fever viruses. VHFs have common features: they affect many organs, they damage the blood vessels, and they affect the body's ability to regulate itself. Some VHFs cause mild disease, but some, like Ebola or Marburg, cause severe disease and death.

Read more about hemorrhagic fevers on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.