What is the ICD-10 code for Dengue fever [classical dengue]?

The ICD-10-CM code for Dengue fever [classical dengue] is A90 (fiscal year 2026). It is a billable diagnosis code.

What does ICD-10 code A90 mean?

A90 is the ICD-10-CM diagnosis code for Dengue fever [classical dengue]. Dengue fever [classical dengue]

Is A90 a billable ICD-10 code?

Yes, A90 is a billable ICD-10-CM code that can be used on medical claims.

What chapter is A90 in?

A90 is classified under Chapter 1: Certain infectious and parasitic diseases (A00-B99), Section A90-A99: Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99).

What are the includes and excludes for A90?

Excludes1 (not coded here): dengue hemorrhagic fever (A91).

A90 Dengue fever [classical dengue]

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The ICD-10-CM code for Dengue fever [classical dengue] is A90 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter: 1: Certain infectious and parasitic diseases (A00-B99)
Section: A90-A99: Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)
Category A90: 1 code (1 billable)
FY2026 Status: Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to A90:

Dengue (classical) (fever)
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › Aden (dengue)
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › solar
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › dandy
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › sun
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › dengue (virus)
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › breakbone
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › seven day (leptospirosis) (autumnal) (Japanese) › dengue

Excludes1

Not coded here. These conditions should NOT be coded together with A90.

dengue hemorrhagic fever (A91)

U.S. Hospital Utilization

An estimated 795 U.S. inpatient stays in 2023 included A90 among the documented diagnoses.
370 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

HIV Infections (TOC entry)

a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.a

Infectious agents causing diseases in other chapters (TOC)

b. Infectious agents as the cause of diseases classified to other chapters ................................. 22

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026