All ICD10 Codes

A90-A99

Non-Billable
ChapterA00–B99
Rankblock
Official Description

Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)

Use a more specific code (4 billable, 5 non-billable)
A90Dengue fever [classical dengue]A91Dengue hemorrhagic feverA92Other mosquito-borne viral fevershas subcodesA93Other arthropod-borne viral fevers, not elsewhere classifiedhas subcodesA94Unspecified arthropod-borne viral feverA95Yellow feverhas subcodesA96Arenaviral hemorrhagic feverhas subcodesA98Other viral hemorrhagic fevers, not elsewhere classifiedhas subcodesA99Unspecified viral hemorrhagic fever
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • 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 Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
A90-A99Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)Not billable
A90Dengue fever [classical dengue]Billable
A91Dengue hemorrhagic feverBillable
A92Other mosquito-borne viral feversSubcodes
A93Other arthropod-borne viral fevers, not elsewhere classifiedSubcodes
A94Unspecified arthropod-borne viral feverBillable
A95Yellow feverSubcodes
A96Arenaviral hemorrhagic feverSubcodes
A98Other viral hemorrhagic fevers, not elsewhere classifiedSubcodes
A99Unspecified viral hemorrhagic feverBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to A90-A99:

chapterCH1
Certain infectious and parasitic diseases (A00-B99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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