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ICD-10 Guide
ICD-10 CodesChapter 1: Certain infectious and parasitic diseasesA75.0

A75.0

Billable

Leptospirosis Weil's disease

Chapter 1:Certain infectious and parasitic diseases

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

Code Description

ICD-10 A75.0 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 bacterium Leptospira. This zoonotic infection is primarily transmitted through contact with water contaminated by the urine of infected animals, particularly rodents. The disease can manifest with a wide range of symptoms, including high fever, chills, muscle aches, vomiting, jaundice, and renal failure. In severe cases, it can lead to hemorrhagic manifestations and multi-organ failure. The incubation period typically ranges from 5 to 14 days, and the disease can be life-threatening if not treated promptly. Diagnosis is often confirmed through serological testing or PCR. Given its association with exposure to contaminated water, leptospirosis is particularly relevant in tropical and subtropical regions, making it a significant concern for travelers and outdoor workers. The clinical presentation can vary widely, and early recognition is crucial for effective management and treatment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Varied clinical presentation can lead to misdiagnosis.
  • Differentiation from other febrile illnesses is challenging.
  • Requires specific laboratory confirmation for accurate coding.
  • Potential for co-infection with other vector-borne diseases.

Audit Risk Factors

  • Inadequate documentation of travel history.
  • Failure to document laboratory confirmation.
  • Misclassification of symptoms leading to incorrect coding.
  • Lack of specificity in the clinical notes.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed clinical notes including travel history, exposure risks, and laboratory results.

Common Clinical Scenarios

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

Billing Considerations

Ensure that all relevant symptoms and laboratory findings are documented to support the diagnosis.

Emergency Medicine

Documentation Requirements

Thorough assessment of presenting symptoms and any potential exposure history.

Common Clinical Scenarios

Patients with acute febrile illness and potential exposure to contaminated water sources.

Billing Considerations

Timely documentation is crucial for accurate coding and treatment initiation.

Coding Guidelines

Inclusion Criteria

Use A75.0 When
  • According to the ICD
  • CM coding guidelines, A75
  • 0 should be used when the diagnosis of leptospirosis is confirmed through clinical evaluation and laboratory testing
  • Coders should ensure that the diagnosis is supported by appropriate documentation

Exclusion Criteria

Do NOT use A75.0 When
  • Exclusion criteria include other infectious diseases with similar presentations

Related ICD-10 Codes

Related CPT Codes

87081CPT Code

Leptospira serology

Clinical Scenario

Used to confirm diagnosis in suspected cases of leptospirosis.

Documentation Requirements

Document the reason for testing and clinical findings.

Specialty Considerations

Infectious disease specialists should ensure comprehensive documentation of exposure history.

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 accuracy of epidemiological data and facilitating better tracking of disease outbreaks. This specificity aids in understanding the disease's impact on public health.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of leptospirosis, improving the accuracy of epidemiological data and facilitating better tracking of disease outbreaks. This specificity aids in understanding the disease's impact on public health.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of leptospirosis, improving the accuracy of epidemiological data and facilitating better tracking of disease outbreaks. This specificity aids in understanding the disease's impact on public health.

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 present with hemorrhagic manifestations.