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Home/Diagnosis/ICD-10 Coding for Gastroenteritis

ICD-10 Coding for Gastroenteritis

A09.0
K52.1

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

Also Known as:
Stomach flu
Gastric flu
Infectious diarrhea
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Key Information: ICD-10 Coding for Gastroenteritis

Essential facts and insights about ICD-10 Coding for Gastroenteritis

Use ICD-10 code A09.0 for infectious gastroenteritis and colitis, unspecified, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Infectious gastroenteritis and colitis, unspecified

Non-Billable
A09.0
Non-Billable

Diagnostic Criteria

  • • Positive rotavirus antigen test

Applicable To

  • • Rotaviral enteritis

Important Notes

  • • Ensure pathogen is specified when possible.

Toxic gastroenteritis and colitis

Billable Code
K52.1
Billable

Diagnostic Criteria

  • • Documentation of toxic agent
  • • Stool toxin assay results

Applicable To

  • • Drug-induced gastroenteritis

Important Notes

  • • Ensure toxic agent is documented and coded first.
Ancillary Codes

Additional codes that may be used with this diagnosis

E86.0

Dehydration

Use when dehydration is present and requires treatment.

T36-T50

Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances

Use to specify the toxic agent involved.

Frequently Asked Questions

What is the ICD-10 code for infectious gastroenteritis?

The ICD-10 code for infectious gastroenteritis is A09.0, used when the pathogen is unspecified or confirmed by lab tests.

When should K52.1 be used for gastroenteritis?

K52.1 is used for toxic gastroenteritis when a toxic agent is documented, such as a drug reaction.

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