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v1.0.0
ICD-10 Guide
ICD-10 CodesA07.1

A07.1

Giardiasis

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/04/2025

Code Description

ICD-10 A07.1 is a billable code used to indicate a diagnosis of giardiasis.

Key Diagnostic Point:

Giardiasis is an intestinal infection caused by the protozoan parasite Giardia lamblia, leading to gastrointestinal symptoms such as diarrhea, abdominal pain, and bloating.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of symptoms
  • Potential for chronic infection

Audit Risk Factors

    Specialty Focus

    Medical Specialties

    Infectious Disease

    Documentation Requirements

    Detailed patient history, symptom description, and laboratory test results.

    Common Clinical Scenarios

    Patients presenting with persistent diarrhea after travel or exposure to contaminated water.

    Billing Considerations

    Consider testing for other co-infections or gastrointestinal disorders.

    Coding Guidelines

    Inclusion Criteria

    Use A07.1 When
    • Ensure accurate documentation of symptoms and laboratory confirmation of Giardia infection to support the diagnosis

    Exclusion Criteria

    Do NOT use A07.1 When
    No specific exclusions found.

    Related CPT Codes

    87320CPT Code

    Giardia antigen test

    Clinical Scenario

    Testing for Giardia in patients with diarrhea.

    Documentation Requirements

    Document symptoms and rationale for testing.

    Specialty Considerations

    Consider referral to infectious disease specialists for complex cases.

    ICD-10 Impact

    Diagnostic & Documentation Impact

    Enhanced Specificity

    ICD-10 Improvements

    Accurate coding of giardiasis can impact treatment plans and public health reporting.

    ICD-9 vs ICD-10

    Accurate coding of giardiasis can impact treatment plans and public health reporting.

    Reimbursement & Billing Impact

    Accurate coding of giardiasis can impact treatment plans and public health reporting.

    Resources

    Clinical References

    • •
      CDC Giardiasis Information

    Coding & Billing References

    • •
      CDC Giardiasis Information

    Frequently Asked Questions

    What are the common symptoms of giardiasis?

    Common symptoms include diarrhea, abdominal cramps, bloating, and nausea.

    How is giardiasis diagnosed?

    Diagnosis is typically made through stool tests to identify Giardia parasites or their antigens.