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v1.0.0
ICD-10 Guide
ICD-10 CodesB57

B57

B57 - Babesiosis

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

Code Description

ICD-10 B57 is a billable code used to indicate a diagnosis of b57 - babesiosis.

Key Diagnostic Point:

Babesiosis is a malaria-like parasitic disease caused by protozoa of the genus Babesia, primarily transmitted through the bite of infected Ixodes ticks. The disease is characterized by symptoms such as fever, chills, sweats, headache, body aches, loss of appetite, and nausea. In severe cases, it can lead to hemolytic anemia, thrombocytopenia, and multi-organ dysfunction, particularly in immunocompromised individuals or those without a spleen. Babesiosis is endemic in certain regions, particularly in the northeastern and upper midwestern United States, and is often associated with Lyme disease due to the overlapping habitats of the ticks that transmit these infections. Diagnosis is typically confirmed through blood smear microscopy or serological tests. Treatment usually involves the use of antimalarial medications such as atovaquone combined with azithromycin or clindamycin combined with quinine, depending on the severity of the disease. Prompt diagnosis and treatment are crucial to prevent complications and improve patient outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of clinical presentations ranging from asymptomatic to severe illness.
  • Potential for co-infection with other tick-borne diseases, complicating diagnosis.
  • Need for specific laboratory tests for accurate diagnosis.
  • Variability in treatment protocols based on patient health status.

Audit Risk Factors

  • Inadequate documentation of travel history or exposure to endemic areas.
  • Failure to document co-infections with Lyme disease or other tick-borne illnesses.
  • Misclassification of severity of illness leading to incorrect coding.
  • Lack of laboratory confirmation in the medical record.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, including travel and exposure history, laboratory results, and treatment response.

Common Clinical Scenarios

Patients presenting with fever and recent travel to endemic areas, or those with tick exposure.

Billing Considerations

Ensure all relevant lab tests are documented to support diagnosis.

Primary Care

Documentation Requirements

Comprehensive patient history and physical examination findings, including symptoms and any relevant travel history.

Common Clinical Scenarios

Patients with flu-like symptoms after outdoor activities in endemic regions.

Billing Considerations

Documenting the timeline of symptoms and any potential tick exposure is crucial.

Coding Guidelines

Inclusion Criteria

Use B57 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of symptoms, laboratory results, and treatment protocols
  • Include any relevant co
  • morbid conditions that may affect the patient's treatment and prognosis

Exclusion Criteria

Do NOT use B57 When
No specific exclusions found.

Related Codes

Child Codes

14 codes
B57.0
Toxoplasma chorioretinitis
B57.1
Chagas disease with heart involvement
B57.2
Toxoplasma chorioretinitis
B57.3
Chagas disease with heart involvement
B57.30
Chagas' disease with digestive system involvement, unspecified
B57.31
Megaesophagus in Chagas' disease
B57.32
Megacolon in Chagas' disease
B57.39
Other digestive system involvement in Chagas' disease
B57.4
Toxoplasma chorioretinitis
B57.40
Chagas' disease with nervous system involvement, unspecified
B57.41
Meningitis in Chagas' disease
B57.42
Meningoencephalitis in Chagas' disease
B57.49
Other nervous system involvement in Chagas' disease
B57.5
Chagas disease with heart involvement

Related CPT Codes

87491CPT Code

Infectious agent detection by nucleic acid (DNA or RNA); Babesia species

Clinical Scenario

Used when confirming a diagnosis of babesiosis.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Infectious disease specialists should ensure comprehensive lab documentation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of babesiosis, improving the accuracy of data collection and reimbursement processes. It emphasizes the need for detailed documentation to support the diagnosis.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of babesiosis, improving the accuracy of data collection and reimbursement processes. It emphasizes the need for detailed documentation to support the diagnosis.

Reimbursement & Billing Impact

reimbursement processes. It emphasizes the need for detailed documentation to support the diagnosis.

Resources

Clinical References

  • •
    CDC - Babesiosis

Coding & Billing References

  • •
    CDC - Babesiosis

Frequently Asked Questions

What are the common symptoms of babesiosis?

Common symptoms include fever, chills, sweats, headache, body aches, loss of appetite, and nausea. Severe cases may lead to hemolytic anemia and multi-organ dysfunction.