ICD-10 Code K29.01 – Acute gastritis with bleeding (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K29.01 – Acute gastritis with bleeding
What it is
K29.01 identifies acute inflammation of the stomach lining with active bleeding. Use it when the record clearly documents both acute gastritis and hemorrhage.
Clinical signs
Clinical features may include epigastric pain, nausea, vomiting, and evidence of upper gastrointestinal bleeding such as hematemesis or melena. Clinical features vary; refer to documentation.
When to use this code
Use K29.01 when the provider documents acute gastritis and specifies bleeding as part of the diagnosis. Apply it for encounters where the bleeding is attributed to the gastritis, not to another gastric or esophageal source. Check documentation if the note only says gastritis without hemorrhage.
Do not use for
Do not use this code for chronic gastritis, gastritis without bleeding, or unspecified gastric irritation. Do not assign it when the bleeding source is elsewhere or not clearly linked to gastritis.
Coding tip
Look for explicit wording such as “acute gastritis with bleeding” or “hemorrhagic gastritis” before assigning K29.01.