Arthropod-borne viral fevers and viral hemorrhagic fevers
ICD-10 Codes (39)
A91A92A92.0A92.1A92.2A92.3A92.30A92.31A92.32A92.39A92.4A92.5A92.8A92.9A93A93.0A93.1A93.2A93.8A94A95A95.0A95.1A95.9A96A96.0A96.1A96.2A96.8A96.9A98A98.0A98.1A98.2A98.3A98.4A98.5A98.8A99Updates & Changes
FY 2026 Updates
New Codes (2)
Revised Codes (2)
Deleted Codes
No codes deleted in this range for FY 2026
Historical Changes
- •FY 2025: Routine maintenance updates with minor terminology clarifications
- •FY 2024: Enhanced specificity requirements for certain code ranges
- •FY 2023: Updated documentation guidelines for improved clarity
Upcoming Changes
- •Proposed updates pending review by Coordination and Maintenance Committee
- •Under consideration: Enhanced digital health integration codes
Implementation Guidance
- •Review all FY 2026 updates for A90-A99 codes before implementation
- •Always verify the most current codes in the ICD-10-CM manual
- •Ensure clinical documentation supports the selected diagnosis codes
- +3 more guidance items...
Range Overview
The ICD-10 code range A90-A99 is dedicated to arthropod-borne viral fevers and viral hemorrhagic fevers. These codes cover diseases such as Dengue fever, Yellow fever, and Zika virus, among others. The codes are used to classify and record these illnesses in patient medical records, epidemiological studies, and health management. Each code is specific to the type of fever, its cause, and its current state.
Key Usage Points:
- •Use A90-A99 codes for confirmed cases of arthropod-borne viral fevers and viral hemorrhagic fevers.
- •Specify the type of fever and its state (acute, with complications, etc.)
- •For suspected but unconfirmed cases, use the appropriate R code.
- •Remember to code any associated complications separately.
- •Always verify the final code with the ICD-10-CM Official Guidelines for Coding and Reporting.
Coding Guidelines
When to Use:
- ✓When a patient is diagnosed with a confirmed arthropod-borne viral fever or viral hemorrhagic fever.
- ✓When a patient presents with complications associated with these fevers.
- ✓When a patient's medical history includes these fevers.
- ✓When a patient is admitted for treatment of these fevers.
When NOT to Use:
- ✗When the fever is suspected but not confirmed.
- ✗When the fever is not caused by an arthropod-borne virus.
- ✗When the patient presents with symptoms but no definitive diagnosis.
- ✗When the fever is a secondary condition, not the primary reason for the encounter.
Code Exclusions
Always verify the final code with the ICD-10-CM Official Guidelines for Coding and Reporting.
Documentation Requirements
Documentation for A90-A99 codes should be thorough and specific. The type of fever, its cause, and its current state should be clearly stated. Any associated complications should also be documented.
Clinical Information:
- •Type of fever
- •Cause of fever
- •Current state of fever
- •Associated complications
- •Treatment plan
Supporting Evidence:
- •Lab test results
- •Imaging results
- •Clinical notes
- •Referral letters
Good Documentation Example:
Patient diagnosed with confirmed Dengue fever. Acute state with no complications. Lab results confirm diagnosis.
Poor Documentation Example:
Patient has fever. Suspected Dengue.
Common Documentation Errors:
- ⚠Not specifying the type of fever
- ⚠Not stating the cause of fever
- ⚠Not documenting the current state of fever
- ⚠Not coding associated complications separately
Range Statistics
Coding Complexity
The complexity of A90-A99 codes is considered medium because while the codes themselves are straightforward, determining the specific type of fever, its cause, and its current state can be challenging. Additionally, any associated complications must be coded separately, adding to the complexity.
Key Factors:
- ▸Determining the specific type of fever
- ▸Identifying the cause of fever
- ▸Assessing the current state of fever
- ▸Coding associated complications separately
Specialty Focus
A90-A99 codes are primarily used by infectious disease specialists, emergency medicine physicians, and primary care physicians. These codes are essential for accurate diagnosis, treatment, and tracking of arthropod-borne viral fevers and viral hemorrhagic fevers.
Primary Specialties:
Clinical Scenarios:
- • A patient presents with high fever, rash, and joint pain. Lab tests confirm Dengue fever.
- • A patient with a history of travel to a Zika-endemic area presents with fever and conjunctivitis. Zika virus infection is confirmed.
- • A patient presents with severe fever and bleeding. Lab tests confirm Yellow fever.
Resources & References
Resources for A90-A99 codes include the ICD-10-CM Official Guidelines for Coding and Reporting, clinical reference books, and educational materials on medical coding.
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- World Health Organization ICD-10 guidelines
- Centers for Disease Control and Prevention guidelines
Clinical References:
- Harrison's Principles of Internal Medicine
- Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases
Educational Materials:
- American Academy of Professional Coders (AAPC) resources
- American Health Information Management Association (AHIMA) resources
Frequently Asked Questions
Can A90-A99 codes be used for suspected but unconfirmed cases?
No, A90-A99 codes should only be used for confirmed cases. For suspected but unconfirmed cases, use the appropriate R code.