Back to HomeBeta

ICD-10 Coding for STEC Gastroenteritis(A04.3, B96.22)

Complete ICD-10-CM coding and documentation guide for STEC Gastroenteritis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Shiga toxin-producing E. coli infectionEnterohemorrhagic E. coli infection

Related ICD-10 Code Ranges

Complete code families applicable to STEC Gastroenteritis

A00-A09Primary Range

Intestinal infectious diseases

This range includes codes for infectious gastroenteritis, including STEC.

Bacterial and viral infectious agents

This range includes codes for identifying the infectious agent, such as STEC.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
A04.3Enterohemorrhagic Escherichia coli infectionUse when STEC infection is confirmed by laboratory tests.
  • Stool PCR positive for stx1/stx2 and eae genes
  • Culture confirms STEC O157:H7 or other serotypes
B96.22Escherichia coli [E. coli] as the cause of diseases classified elsewhereUse as an additional code to specify STEC as the causative agent.
  • Lab confirmation of STEC presence

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for STEC gastroenteritis

Essential facts and insights about STEC Gastroenteritis

The ICD-10 code for STEC gastroenteritis is A04.3, used for enterohemorrhagic Escherichia coli infections.

Primary ICD-10-CM Codes for stec gastroenteritis

Enterohemorrhagic Escherichia coli infection
Billable Code

Decision Criteria

clinical Criteria

  • Confirmed STEC infection via lab tests

coding Criteria

  • Use A04.3 for primary coding of STEC gastroenteritis

Applicable To

  • STEC gastroenteritis
  • E. coli O157:H7 infection

Excludes

  • Non-STEC E. coli infections

Clinical Validation Requirements

  • Stool PCR positive for stx1/stx2 and eae genes
  • Culture confirms STEC O157:H7 or other serotypes

Code-Specific Risks

  • Misclassification if lab results are not specific to STEC.

Coding Notes

  • Ensure lab confirmation of STEC before coding.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Escherichia coli [E. coli] as the cause of diseases classified elsewhere

B96.22
Use to specify STEC as the causative agent in conjunction with A04.3.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Enterotoxigenic Escherichia coli infection

A04.1
ETEC lacks stx genes and is not associated with bloody diarrhea.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting STEC Gastroenteritis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code A04.3.

Impact

Clinical: May lead to inappropriate treatment., Regulatory: Non-compliance with coding standards., Financial: Potential for denied claims.

Mitigation Strategy

Specify STEC in documentation, Include lab confirmation details

Impact

Reimbursement: Incorrect coding can lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate data on disease prevalence.

Mitigation Strategy

Always pair B96.22 with a primary code like A04.3.

Impact

Using B96.22 without a primary code like A04.3.

Mitigation Strategy

Educate coders on proper sequencing rules.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for STEC Gastroenteritis, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for STEC Gastroenteritis

Use these documentation templates to ensure complete and accurate documentation for STEC Gastroenteritis. These templates include all required elements for proper coding and billing.

Emergency Department Visit

Specialty: Emergency Medicine

Required Elements

  • Patient history
  • Symptoms onset and duration
  • Lab test results
  • Exposure history

Example Documentation

Patient presents with sudden-onset bloody diarrhea. Stool PCR positive for stx2 and eae. No travel history. Contact with undercooked beef 4 days prior.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient with diarrhea. Treat with fluids.
Good Documentation Example
Sudden-onset bloody diarrhea x48h, severe abdominal pain. Stool PCR positive for stx2/eae. No travel history. Contact with undercooked beef 4d prior. IV hydration initiated.
Explanation
The good example provides specific lab results and exposure history, which are crucial for accurate coding.

Need help with ICD-10 coding for STEC Gastroenteritis? Ask your questions below.

Ask about any ICD-10 CM code, or paste a medical note

We build tools for
clinician happiness.

Learn More at Freed.ai
Back to HomeBeta

Built by Freed

Try Freed for free for 7 days.

Learn more