Unspecified viral hemorrhagic fever
ICD-10 A99 is a billable code used to indicate a diagnosis of unspecified viral hemorrhagic fever.
Unspecified viral hemorrhagic fever (VHF) refers to a group of illnesses caused by several distinct families of viruses that can lead to severe multisystem disease characterized by fever, bleeding, and often shock. These viruses are typically transmitted through arthropod vectors, such as mosquitoes or ticks, or through direct contact with infected bodily fluids. Common examples of VHFs include Ebola, Marburg, and Lassa fever, though A99 is used when the specific viral agent is not identified. Clinically, patients may present with fever, fatigue, dizziness, and bleeding manifestations, which can progress rapidly to severe complications. Travel history is crucial in the diagnosis, as many VHFs are endemic to specific regions, particularly in Africa and parts of Asia. Laboratory confirmation is essential for diagnosis, often requiring specialized testing due to the biosafety level of the pathogens involved. The management of VHF is primarily supportive, focusing on fluid resuscitation and symptomatic treatment, with specific antiviral therapies available for certain viruses.
Detailed travel history, laboratory results, and clinical findings.
Patients presenting with fever and bleeding after travel to endemic areas.
Documentation must clearly indicate the suspected viral hemorrhagic fever and any differential diagnoses considered.
Immediate assessment findings, travel history, and initial treatment provided.
Patients presenting to the emergency department with acute febrile illness and bleeding.
Rapid identification and documentation of potential VHFs are critical for patient management and public health reporting.
Used when testing for multiple viral hemorrhagic fevers.
Document the need for testing based on clinical presentation and travel history.
Infectious disease specialists should ensure that all relevant tests are ordered.
Use code A99 when a patient presents with symptoms consistent with viral hemorrhagic fever, but the specific virus has not been identified. Ensure that all clinical details and travel history are documented.
