Billable / Specific Code
ICD-10-CM A99 is the diagnosis code for Unspecified viral hemorrhagic fever. This code falls under the section "Arthropod-borne viral fevers and viral hemorrhagic fevers" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where A99 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, A99 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
A99 is the ICD-10-CM diagnosis code for "Unspecified viral hemorrhagic fever". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
A99 is located in Section A90-A99 — "Arthropod-borne viral fevers and viral hemorrhagic fevers" within Chapter 1 of the ICD-10-CM Tabular List.
Use A99 when the patients documented diagnosis matches "Unspecified viral hemorrhagic fever" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Unspecified viral hemorrhagic fever is A99.
Yes, A99 can be used as a primary diagnosis code since it is billable and specific.
A99 is in Chapter 1 of the ICD-10-CM Tabular List.
Yes, A99 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.