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v1.0.0
ICD-10 Guide
ICD-10 CodesA04.4

A04.4

Other intestinal Escherichia coli infections

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

Code Description

ICD-10 A04.4 is a billable code used to indicate a diagnosis of other intestinal escherichia coli infections.

Key Diagnostic Point:

Infections caused by various strains of Escherichia coli that affect the intestines, excluding those classified under other specific codes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of strains
  • Potential for severe symptoms

Audit Risk Factors

    Specialty Focus

    Medical Specialties

    Infectious Disease

    Documentation Requirements

    Detailed patient history, laboratory results confirming E. coli strain.

    Common Clinical Scenarios

    Patients presenting with diarrhea, abdominal pain, and fever.

    Billing Considerations

    Consideration of recent travel history and food consumption.

    Coding Guidelines

    Inclusion Criteria

    Use A04.4 When
    • Use this code when the infection is confirmed as an E
    • coli strain not specified elsewhere in ICD

    Exclusion Criteria

    Do NOT use A04.4 When
    No specific exclusions found.

    Related CPT Codes

    87045CPT Code

    Culture, bacterial, any source

    Clinical Scenario

    When a stool sample is taken to identify E. coli strain.

    Documentation Requirements

    Document the reason for culture and any relevant symptoms.

    Specialty Considerations

    Infectious disease specialists may require additional tests.

    ICD-10 Impact

    Diagnostic & Documentation Impact

    Enhanced Specificity

    ICD-10 Improvements

    Accurate coding is essential for tracking outbreaks and managing public health responses.

    ICD-9 vs ICD-10

    Accurate coding is essential for tracking outbreaks and managing public health responses.

    Reimbursement & Billing Impact

    Accurate coding is essential for tracking outbreaks and managing public health responses.

    Resources

    Clinical References

    • •
      CDC Guidelines on E. coli Infections

    Coding & Billing References

    • •
      CDC Guidelines on E. coli Infections

    Frequently Asked Questions

    What are the common symptoms of E. coli infections?

    Common symptoms include diarrhea, abdominal cramps, and sometimes fever.

    How is E. coli infection diagnosed?

    Diagnosis is typically made through stool culture and identification of the specific strain.