Dengue hemorrhagic fever (A91) ICD-10-CM
The A91 code range covers dengue hemorrhagic fever with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the A91 Range 1 codes · 1 billable
- A91 Dengue hemorrhagic fever
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A91 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.
Dengue Vaccines
Vaccines or candidate vaccines used to prevent infection with DENGUE VIRUS. These include live-attenuated, subunit, DNA, and inactivated vaccines.
Dengue Virus
A species of the genus FLAVIVIRUS which causes an acute febrile and sometimes hemorrhagic disease in man. Dengue is mosquito-borne and four serotypes are known.
Flavivirus
A genus of FLAVIVIRIDAE containing several subgroups and many species. Most are arboviruses transmitted by mosquitoes or ticks. The type species is YELLOW FEVER VIRUS.
Severe Dengue
A virulent form of dengue characterized by THROMBOCYTOPENIA and an increase in vascular permeability (grades I and II) and distinguished by a positive pain test (e.g., TOURNIQUET PAIN TEST). When accompanied by SHOCK (grades III and IV), it is called dengue shock syndrome.
About the A91 Code Range
The ICD-10 code A91 is used specifically to identify and classify dengue hemorrhagic fever, a severe form of dengue virus infection. This code is essential for documenting cases where bleeding and plasma leakage complicate a typical dengue infection.
Dengue hemorrhagic fever, sometimes referred to as dengue shock syndrome or classified in severity grades I through IV, involves critical symptoms such as bleeding, low platelet counts, and blood plasma leakage. These detailed synonyms help medical coders select the right code when encountering these terms in clinical records. The ICD-10 code for dengue hemorrhagic fever (A91) specifically distinguishes this serious viral infection from standard dengue fever, supporting accurate diagnosis, treatment planning, and healthcare reporting related to this potentially life-threatening condition.
Questions About This Page
How many billable codes are in the A91 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the A91 range classify?
The range classifies dengue hemorrhagic fever. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
