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v1.0.0
ICD-10 Guide
ICD-10 CodesA03

A03

Shigellosis

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

Code Description

ICD-10 A03 is a used to indicate a diagnosis of shigellosis.

Key Diagnostic Point:

Shigellosis is an infectious disease caused by the Shigella bacteria, characterized by diarrhea (often bloody), fever, and abdominal cramps.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Severity of symptoms
  • Potential for complications

Audit Risk Factors

    Specialty Focus

    Medical Specialties

    Infectious Disease

    Documentation Requirements

    Detailed patient history, symptom severity, and laboratory confirmation of Shigella.

    Common Clinical Scenarios

    Outbreaks in community settings, travel-related infections.

    Billing Considerations

    Consider co-infections and antibiotic resistance patterns.

    Coding Guidelines

    Inclusion Criteria

    Use A03 When
    • Ensure accurate documentation of symptoms and laboratory results to support the diagnosis of Shigellosis

    Exclusion Criteria

    Do NOT use A03 When
    No specific exclusions found.

    Related Codes

    Child Codes

    6 codes
    A03.0
    Shigellosis due to Shigella dysenteriae
    A03.1
    Shigellosis due to Shigella flexneri
    A03.2
    Shigellosis due to Shigella boydii
    A03.3
    Shigellosis due to Shigella sonnei
    A03.8
    Other shigellosis
    A03.9
    Shigellosis, unspecified

    Related CPT Codes

    87045CPT Code

    Culture, bacterial, any source

    Clinical Scenario

    Testing stool samples for Shigella.

    Documentation Requirements

    Document the reason for culture and patient symptoms.

    Specialty Considerations

    Infectious disease specialists may require additional tests for antibiotic susceptibility.

    ICD-10 Impact

    Diagnostic & Documentation Impact

    Enhanced Specificity

    ICD-10 Improvements

    Accurate coding of Shigellosis can impact public health reporting and resource allocation for outbreaks.

    ICD-9 vs ICD-10

    Accurate coding of Shigellosis can impact public health reporting and resource allocation for outbreaks.

    Reimbursement & Billing Impact

    Accurate coding of Shigellosis can impact public health reporting and resource allocation for outbreaks.

    Resources

    Clinical References

    • •
      CDC Shigellosis Information

    Coding & Billing References

    • •
      CDC Shigellosis Information

    Frequently Asked Questions

    What are the common symptoms of Shigellosis?

    Common symptoms include diarrhea (often bloody), fever, abdominal cramps, and tenesmus.

    How is Shigellosis transmitted?

    Shigellosis is primarily transmitted through the fecal-oral route, often via contaminated food or water.