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v1.0.0
ICD-10 Guide
ICD-10 CodesA98.1

A98.1

Dengue hemorrhagic fever

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 A98.1 is a billable code used to indicate a diagnosis of dengue hemorrhagic fever.

Key Diagnostic Point:

Dengue hemorrhagic fever (DHF) is a severe form of dengue fever, a viral illness transmitted by Aedes mosquitoes, primarily Aedes aegypti. It is characterized by high fever, hemorrhagic manifestations, and increased vascular permeability, leading to plasma leakage, which can result in shock and organ failure. Clinically, DHF presents with symptoms such as severe abdominal pain, persistent vomiting, and bleeding tendencies, including petechiae, ecchymosis, and gastrointestinal bleeding. Laboratory findings may show thrombocytopenia, hemoconcentration, and elevated liver enzymes. The condition is more common in children and can be life-threatening if not recognized and treated promptly. Travel history to endemic areas is crucial for diagnosis, as DHF is prevalent in tropical and subtropical regions. Early recognition and supportive care are essential for improving outcomes in patients with DHF.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires knowledge of travel history to endemic areas.
  • Differentiation from other hemorrhagic fevers.
  • Need for accurate documentation of clinical symptoms.
  • Potential for severe complications requiring intensive care.

Audit Risk Factors

  • Inadequate documentation of travel history.
  • Failure to document clinical symptoms accurately.
  • Misclassification of dengue fever severity.
  • Lack of supporting lab results in the medical record.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed clinical notes on symptoms, travel history, and lab results.

Common Clinical Scenarios

Patients presenting with fever and bleeding after travel to endemic areas.

Billing Considerations

Ensure all symptoms and lab findings are documented to support the diagnosis.

Emergency Medicine

Documentation Requirements

Immediate assessment notes, including vital signs and initial lab results.

Common Clinical Scenarios

Patients with acute febrile illness and signs of shock.

Billing Considerations

Timely documentation is critical for coding and treatment decisions.

Coding Guidelines

Inclusion Criteria

Use A98.1 When
  • According to ICD
  • 10 guidelines, A98
  • 1 should be used when the clinical criteria for dengue hemorrhagic fever are met
  • It is essential to document the severity of the condition and any associated complications

Exclusion Criteria

Do NOT use A98.1 When
  • Exclusion criteria include other viral hemorrhagic fevers unless specified

Related CPT Codes

86790CPT Code

Dengue virus serology

Clinical Scenario

Used for confirming dengue infection in patients with suspected DHF.

Documentation Requirements

Document the reason for testing and clinical symptoms.

Specialty Considerations

Infectious disease specialists should ensure comprehensive lab results are included.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of dengue hemorrhagic fever, improving data accuracy and facilitating better tracking of disease prevalence and outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of dengue hemorrhagic fever, improving data accuracy and facilitating better tracking of disease prevalence and outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of dengue hemorrhagic fever, improving data accuracy and facilitating better tracking of disease prevalence and outcomes.

Resources

Clinical References

  • •
    CDC Dengue Information

Coding & Billing References

  • •
    CDC Dengue Information

Frequently Asked Questions

What are the key symptoms of dengue hemorrhagic fever?

Key symptoms include high fever, severe abdominal pain, persistent vomiting, bleeding tendencies, and signs of shock.