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BillableInfectious gastroenteritis and colitis, unspecified
A09 is the ICD-10-CM code for Infectious gastroenteritis and colitis, unspecified. It is a billable, specific code valid for reimbursement.
- Status
- Billable
- Chapter
- A00-B99
- Edition
- FY2026
A00-B99 Certain infectious and parasitic diseases
What this means — in plain language
MedlinePlus · NIHWhat is gastroenteritis? Gastroenteritis is an inflammation of the lining of the stomach and intestines. The main symptoms include vomiting and diarrhea . It is usually not serious in healthy people, but it can sometimes lead to dehydration or cause severe symptoms. What causes gastroenteritis? There can be many different causes of gastroenteritis: Viruses Bacteria Parasites Chemicals Reactions to certain medicines…
Read more about Gastroenteritis at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Infectious colitis NOS
- •Infectious enteritis NOS
- •Infectious gastroenteritis NOS
Excludes1 — not coded here
Medications indicated for this condition
FDA labeling- SulfamethoxazoleSulfonamide Antimicrobial [EPC]›
- Hyoscyamine Sulfate Sublingual›
- Infant 4.2% Sodium Bicarbonate›
- Sulfameth/trimeth-dsSulfonamide Antimicrobial [EPC]›
- Tigan(r) (trimethobenzamide Hydrochloride)›
Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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