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ICD-10 Guide
ICD-10 CodesA67.0

A67.0

Leptospirosis Weil's disease

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

Code Description

ICD-10 A67.0 is a billable code used to indicate a diagnosis of leptospirosis weil's disease.

Key Diagnostic Point:

Leptospirosis, also known as Weil's disease, is a severe form of leptospirosis caused by the spirochete bacteria Leptospira interrogans. This zoonotic disease is transmitted to humans through contact with water, soil, or food contaminated with the urine of infected animals, particularly rodents. Clinically, Weil's disease is characterized by a triad of symptoms: jaundice, renal failure, and hemorrhagic diathesis. Patients may present with flu-like symptoms initially, including fever, chills, myalgia, and headache, which can progress to more severe manifestations such as liver dysfunction, acute kidney injury, and pulmonary hemorrhage. Geographic distribution of leptospirosis is widespread, with endemic areas primarily in tropical and subtropical regions, particularly in parts of Southeast Asia, the Caribbean, and South America. Outbreaks are often associated with heavy rainfall and flooding, which increase the risk of exposure. Diagnosis is typically confirmed through serological testing or PCR, and treatment involves the use of antibiotics such as doxycycline or penicillin. Early recognition and management are crucial to prevent complications and improve outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of clinical presentations ranging from mild to severe
  • Potential for misdiagnosis with other febrile illnesses
  • Need for specific laboratory confirmation for accurate coding
  • Geographic variations in prevalence affecting documentation

Audit Risk Factors

  • Inconsistent documentation of exposure history
  • Lack of laboratory confirmation in medical records
  • Misclassification of severity of illness
  • Inadequate differentiation from other infectious diseases

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history including exposure risks, symptom onset, and laboratory results.

Common Clinical Scenarios

Patients presenting with fever, jaundice, and renal impairment after exposure to contaminated water.

Billing Considerations

Ensure all relevant lab tests are documented to support the diagnosis.

Emergency Medicine

Documentation Requirements

Thorough documentation of presenting symptoms, travel history, and initial treatment provided.

Common Clinical Scenarios

Patients presenting with acute febrile illness and potential exposure to leptospirosis.

Billing Considerations

Rapid assessment and documentation of vital signs and lab results are critical.

Coding Guidelines

Inclusion Criteria

Use A67.0 When
  • According to ICD
  • 10 guidelines, A67
  • 0 should be used when the diagnosis of leptospirosis is confirmed through laboratory testing
  • It is important to document the specific symptoms and any complications that arise

Exclusion Criteria

Do NOT use A67.0 When
  • Exclusion criteria include conditions that may mimic leptospirosis but are not caused by Leptospira

Related CPT Codes

87081CPT Code

Culture for Leptospira

Clinical Scenario

Used when leptospirosis is suspected and culture confirmation is needed.

Documentation Requirements

Document the reason for culture and any relevant clinical findings.

Specialty Considerations

Infectious disease specialists should ensure proper specimen handling.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of leptospirosis, improving the ability to track and manage this disease. The detailed coding options help in understanding the epidemiology and clinical outcomes associated with leptospirosis.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of leptospirosis, improving the ability to track and manage this disease. The detailed coding options help in understanding the epidemiology and clinical outcomes associated with leptospirosis.

Reimbursement & Billing Impact

reimbursement and to avoid audits.

Resources

Clinical References

  • •
    CDC Leptospirosis Information

Coding & Billing References

  • •
    CDC Leptospirosis Information

Frequently Asked Questions

What are the common symptoms of Weil's disease?

Common symptoms include high fever, chills, muscle aches, jaundice, and renal failure. Severe cases may also present with bleeding and respiratory distress.