ICD-10 Diagnosis Code A91

Dengue hemorrhagic fever

Diagnosis Code A91

ICD-10: A91
Short Description: Dengue hemorrhagic fever
Long Description: Dengue hemorrhagic fever
This is the 2018 version of the ICD-10-CM diagnosis code A91

Valid for Submission
The code A91 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Certain infectious and parasitic diseases (A00–B99)
    • Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)
      • Dengue hemorrhagic fever (A91)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code A91 is grouped in the following Diagnostic Related Group(s) (MS-DRG V34.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Dengue
  • Dengue hemorrhagic fever
  • Dengue hemorrhagic fever, grade I
  • Dengue hemorrhagic fever, grade II
  • Dengue hemorrhagic fever, grade III
  • Dengue hemorrhagic fever, grade IV
  • Dengue shock syndrome

Information for Patients


Also called: Break-bone fever, Dengue fever

Dengue is an infection caused by a virus. You can get it if an infected mosquito bites you. Dengue does not spread from person to person. It is common in warm, wet areas of the world. Outbreaks occur in the rainy season. Dengue is rare in the United States.

Symptoms include a high fever, headaches, joint and muscle pain, vomiting, and a rash. In some cases, dengue turns into dengue hemorrhagic fever, which causes bleeding from your nose, gums, or under your skin. It can also become dengue shock syndrome, which causes massive bleeding and shock. These forms of dengue are life-threatening.

There is no specific treatment. Most people with dengue recover within 2 weeks. Until then, drinking lots of fluids, resting and taking non-aspirin fever-reducing medicines might help. People with the more severe forms of dengue usually need to go to the hospital and get fluids.

To lower your risk when traveling to areas where dengue is found

  • Wear insect repellent with DEET
  • Wear clothes that cover your arms, legs and feet
  • Close unscreened doors and windows

NIH: National Institute of Allergy and Infectious Diseases

  • Dengue fever (Medical Encyclopedia)
  • Dengue hemorrhagic fever (Medical Encyclopedia)

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