What A95 covers · when clinicians use it
ICD-10 code A95 identifies Yellow fever in the U.S. ICD-10-CM clinical and billing record set. It sits within the Certain Infectious and Parasitic Diseases chapter (A00–B99), the section that groups related diagnoses so providers, payers, and public-health agencies report them consistently. Clinicians and medical coders apply A95 when an encounter's findings match the Yellow fever description, attaching it to the patient record so downstream insurance claims, payer audits, quality reporting, and epidemiological surveillance all reference the same standardized diagnosis. The ICD-10-CM is maintained by the Centers for Medicare & Medicaid Services and the CDC's National Center for Health Statistics, with an updated official code set released each U.S. fiscal year — always verify A95 against the current CMS/CDC release and your payer's documentation guidance before final use. This page summarizes documentation context for A95 and is a coding reference, not clinical, diagnostic, or billing advice.
A95 refers to Yellow fever, a viral infection transmitted by mosquitoes or other arthropods, often associated with outbreaks in tropical and subtropical regions. These illnesses can range from mild febrile conditions to severe hemorrhagic or neurologic syndromes. Accurate use of this ICD10 code supports diagnosis, monitoring, treatment planning, and global surveillance efforts.
Symptoms
- High fever – Rapid onset and may last for several days
- Headache – Especially behind the eyes, common in dengue
- Muscle and joint pain – Intense body aches, often called "breakbone fever"
- Skin rash – Typically appears a few days after fever starts
- Nausea and vomiting – Frequently reported symptoms
- Bleeding – Gums, nose, or under the skin in hemorrhagic fevers
- Fatigue – Lingering weakness even after fever subsides
Diagnosis
Diagnosis of Yellow fever is based on clinical presentation and exposure history, particularly travel to or residence in endemic areas. Laboratory tests include PCR for viral RNA detection, NS1 antigen tests for dengue, and serologic assays for IgM/IgG antibodies. Hematological profiles may show thrombocytopenia or elevated hematocrit, especially in hemorrhagic forms. Early diagnosis is crucial to prevent severe complications.
ICD10 Code Usage
ICD10 code A95 is used in healthcare systems worldwide for accurate documentation, billing, and epidemiological tracking of arthropod-borne and viral hemorrhagic fevers. These codes help classify cases during outbreaks, support insurance claims, and contribute to national and global health databases for infectious disease monitoring and response planning.
Related Codes
- A90 – Dengue fever [classical dengue]
- A91 – Dengue hemorrhagic fever
- A92 – Other mosquito-borne viral fevers
- A93 – Other arthropod-borne viral fevers, not elsewhere classified
- A94 – Unspecified arthropod-borne viral fever
- A96 – Arenaviral hemorrhagic fever
- A98 – Other viral hemorrhagic fevers, not elsewhere classified
- A99 – Unspecified viral hemorrhagic fever
FAQs
Q1: What is ICD10 code A95?
A: It is a diagnostic code used to classify Yellow fever in patient records and health systems.
Q2: Are these diseases contagious?
A: They are not spread from person to person but transmitted by mosquito or vector bites.
Q3: Is there a vaccine available?
A: Yes, for some conditions like yellow fever and dengue (in specific populations), vaccines exist.
Q4: How are these conditions treated?
A: Treatment is usually supportive, focusing on hydration, fever control, and managing complications.
Q5: Are these diseases fatal?
A: Some, especially hemorrhagic fevers, can be fatal without timely medical care.
Conclusion
ICD10 code A95 is essential for diagnosing and managing Yellow fever, especially during outbreaks and in travel medicine. Proper coding enables accurate data collection, guides treatment protocols, and supports public health interventions across regions affected by vector-borne or hemorrhagic viral illnesses.