Dengue fever [classical dengue] (A90) ICD-10-CM
The A90 code range covers dengue fever [classical dengue] with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- dengue hemorrhagic fever A91
Codes in the A90 Range 1 codes · 1 billable
- A90 Dengue fever [classical dengue]
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A90 range.
Dengue
An acute febrile disease transmitted by the bite of AEDES mosquitoes infected with DENGUE VIRUS. It is self-limiting and characterized by fever, myalgia, headache, and rash. SEVERE DENGUE is a more virulent form of dengue.
About the A90 Code Range
Dengue is a feverish illness spread by the bite of an Aedes mosquito infected with dengue virus. It can cause fever, muscle aches, headache, and rash.
A90 names classical dengue fever within a group of viral fevers spread by arthropods, such as mosquitoes, and viral hemorrhagic fevers.
Questions About This Page
How many billable codes are in the A90 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the A90 range classify?
The range classifies dengue fever [classical dengue]. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
