A90 ICD-10-CM Code: Dengue fever [classical dengue]
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
A90Dengue fever [classical dengue]
ICD-10-CM diagnosis code · United States clinical modification
Where A90 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)
- 3
Category A90
Dengue fever [classical dengue]
- 4
Code A90
Dengue fever [classical dengue]
Notes for this code
Inclusion terms
No inclusion terms are listed for A90.
Code first
No “code first” instruction is listed for A90.
Use additional code
No “use additional code” instruction is listed for A90.
Excludes1
Conditions that should not be reported together with this code.
- dengue hemorrhagic fever (A91)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for A90.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code A90 mean?
A90 is the FY 2027 U.S. ICD-10-CM code for “Dengue fever [classical dengue].”
Is A90 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, A90 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is A90 located in ICD-10-CM?
A90 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99) (A90–A99), under category A90, Dengue fever [classical dengue].
What coding notes are listed for A90?
No inclusion terms are listed for A90 in this reference record. No code-first instruction is listed. Excludes1 notes: dengue hemorrhagic fever (A91). No Excludes2 note is listed.