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v1.0.0
ICD-10 Guide
ICD-10 CodesA27.0

A27.0

Leptospirosis Weil's disease

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

Code Description

ICD-10 A27.0 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 to humans through contact with water contaminated by the urine of infected animals, particularly rodents, livestock, and wildlife. The disease can manifest with a wide range of symptoms, including high fever, chills, muscle aches, vomiting, jaundice, and in severe cases, renal failure, liver damage, and hemorrhagic complications. The incubation period typically ranges from 5 to 14 days, and the disease can progress rapidly, necessitating prompt medical intervention. Public health considerations are critical, as outbreaks can occur in areas with poor sanitation and flooding, where the risk of exposure to contaminated water is heightened. Preventive measures include rodent control, proper sanitation, and public awareness campaigns to reduce exposure risks. Early diagnosis and treatment with antibiotics are essential to mitigate severe outcomes and reduce transmission.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Zoonotic nature requiring understanding of animal reservoirs
  • Varied clinical presentation complicating diagnosis
  • Potential for severe complications necessitating careful documentation
  • Public health implications requiring awareness of outbreak patterns

Audit Risk Factors

  • Inadequate documentation of exposure history
  • Failure to document severity of symptoms
  • Misclassification of related febrile illnesses
  • Lack of follow-up documentation post-treatment

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, including exposure risks and symptom progression.

Common Clinical Scenarios

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

Billing Considerations

Ensure all laboratory results and clinical findings are documented to support the diagnosis.

Emergency Medicine

Documentation Requirements

Immediate assessment of symptoms, exposure history, and initial treatment provided.

Common Clinical Scenarios

Patients presenting with acute febrile illness and potential exposure to contaminated environments.

Billing Considerations

Timely documentation is crucial for coding and billing, especially in acute care settings.

Coding Guidelines

Inclusion Criteria

Use A27.0 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the clinical presentation, exposure history, and any complications
  • Include relevant laboratory findings to support the diagnosis

Exclusion Criteria

Do NOT use A27.0 When
No specific exclusions found.

Related CPT Codes

87070CPT Code

Culture, bacterial, any source

Clinical Scenario

Used when a culture is taken to confirm leptospirosis.

Documentation Requirements

Document the source of the culture and clinical indications.

Specialty Considerations

Infectious disease specialists should ensure cultures are properly labeled and processed.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of leptospirosis, enabling better tracking of cases and complications, which is crucial for public health monitoring and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of leptospirosis, enabling better tracking of cases and complications, which is crucial for public health monitoring and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of leptospirosis, enabling better tracking of cases and complications, which is crucial for public health monitoring and resource allocation.

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 in severe cases, renal failure and hemorrhagic complications.

How is leptospirosis transmitted?

Leptospirosis is primarily transmitted through contact with water contaminated by the urine of infected animals, particularly rodents and livestock.