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ICD-10 Guide
ICD-10 CodesA27.89

A27.89

Other forms of leptospirosis

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

Code Description

ICD-10 A27.89 is a billable code used to indicate a diagnosis of other forms of leptospirosis.

Key Diagnostic Point:

Leptospirosis is a zoonotic infection caused by the Leptospira bacteria, which can lead to a wide range of clinical manifestations. While many cases present with mild flu-like symptoms, others can progress to severe illness, including liver failure, renal impairment, and hemorrhagic manifestations. The 'Other forms of leptospirosis' code (A27.89) is used when the specific type of leptospirosis is not classified under the more common forms, such as icterohemorrhagic leptospirosis or leptospirosis with renal involvement. Transmission occurs primarily through contact with water contaminated by the urine of infected animals, particularly rodents, livestock, and wildlife. Public health considerations are significant, as outbreaks can occur in areas with poor sanitation and flooding, necessitating surveillance and preventive measures. Understanding the various forms of leptospirosis is crucial for accurate diagnosis and treatment, as well as for implementing effective public health strategies to control the spread of this infection.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of clinical presentations complicating diagnosis.
  • Need for specific laboratory confirmation of leptospirosis.
  • Differentiation from other zoonotic infections.
  • Potential for co-infections with other pathogens.

Audit Risk Factors

  • Inconsistent documentation of clinical symptoms.
  • Failure to provide laboratory confirmation.
  • Misclassification of leptospirosis type.
  • Inadequate linkage between diagnosis and treatment.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed clinical history, laboratory results, and exposure history.

Common Clinical Scenarios

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

Billing Considerations

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

Public Health

Documentation Requirements

Epidemiological data, outbreak reports, and environmental assessments.

Common Clinical Scenarios

Investigation of community outbreaks linked to water sources.

Billing Considerations

Focus on preventive measures and community education to reduce transmission risk.

Coding Guidelines

Inclusion Criteria

Use A27.89 When
  • Follow the ICD
  • CM guidelines for coding infectious diseases, ensuring accurate documentation of the specific form of leptospirosis
  • Include any relevant laboratory findings and clinical symptoms to support the diagnosis

Exclusion Criteria

Do NOT use A27.89 When
No specific exclusions found.

Related CPT Codes

87070CPT Code

Culture, bacterial, any source

Clinical Scenario

Used when leptospirosis is suspected and cultures are needed.

Documentation Requirements

Document the clinical suspicion and rationale for culture.

Specialty Considerations

Infectious disease specialists should ensure proper specimen collection.

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 outbreaks and public health responses. The granularity of ICD-10 codes helps in understanding the epidemiology of the disease.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of leptospirosis, enabling better tracking of outbreaks and public health responses. The granularity of ICD-10 codes helps in understanding the epidemiology of the disease.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of leptospirosis, enabling better tracking of outbreaks and public health responses. The granularity of ICD-10 codes helps in understanding the epidemiology of the disease.

Resources

Clinical References

  • •
    CDC Leptospirosis Information

Coding & Billing References

  • •
    CDC Leptospirosis Information

Frequently Asked Questions

What are the common symptoms of leptospirosis?

Common symptoms include fever, chills, muscle aches, headache, vomiting, jaundice, and abdominal pain. Severe cases may lead to liver failure, renal impairment, and respiratory distress.

How is leptospirosis transmitted?

Leptospirosis is primarily transmitted through contact with water contaminated by the urine of infected animals, particularly rodents and livestock. It can also be contracted through direct contact with infected animals.

What laboratory tests are used to diagnose leptospirosis?

Diagnosis is typically confirmed through serological tests such as the microscopic agglutination test (MAT) or polymerase chain reaction (PCR) testing.