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Home/Diagnosis/ICD-10 Coding for Acute Gastroenteritis

ICD-10 Coding for Acute Gastroenteritis

A09
K52.9
A08.11

Complete ICD-10-CM coding and documentation guide for icd-10 coding for acute gastroenteritis includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Stomach Flu
Viral Gastroenteritis
Infectious Diarrhea
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Key Information: ICD-10 Coding for Acute Gastroenteritis

Essential facts and insights about ICD-10 Coding for Acute Gastroenteritis

Use ICD-10 code A09 for infectious gastroenteritis and colitis, unspecified, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Infectious gastroenteritis and colitis, unspecified

Billable Code
A09
Billable

Diagnostic Criteria

clinical:
  • • Presence of symptoms like diarrhea and vomiting with suspected infectious exposure

Applicable To

  • • Diarrhea of presumed infectious origin

Important Notes

  • • Ensure documentation supports infectious nature if using A09.

Noninfective gastroenteritis and colitis, unspecified

Billable Code
K52.9
Billable

Applicable To

  • • Noninfective diarrhea

Important Notes

  • • Ensure non-infectious nature is documented if using K52.9.

Acute gastroenteropathy due to Norwalk agent

Billable Code
A08.11
Billable

Applicable To

  • • Norovirus infection

Important Notes

  • • Ensure lab results are documented to support Norovirus diagnosis.
Ancillary Codes

Additional codes that may be used with this diagnosis

R11.2

Nausea with vomiting, unspecified

Use for persistent vomiting alongside primary gastroenteritis code.

Frequently Asked Questions

What is the ICD-10 code for acute gastroenteritis?

The ICD-10 code for acute gastroenteritis of unspecified infectious origin is A09. For specific pathogens like Norovirus, use A08.11.

How do you code non-infectious gastroenteritis?

Non-infectious gastroenteritis is coded as K52.9, used when infectious causes are ruled out.

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