ICD-10 Code K29.40 – Chronic atrophic gastritis without bleeding (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K29.40 – Chronic atrophic gastritis without bleeding
What it is
K29.40 identifies chronic atrophic gastritis without bleeding, a long-term inflammation of the stomach lining with thinning or loss of gastric gland tissue. It is used when documentation supports atrophic gastritis and no active bleeding is present.
Clinical signs
Clinical features vary; refer to documentation. Commonly noted findings may include chronic upper abdominal discomfort, dyspepsia, nausea, or endoscopic evidence of atrophic gastric mucosa.
When to use this code
Use this code when the provider documents chronic atrophic gastritis and specifically states there is no bleeding. It also fits cases where the record describes gastric atrophy or chronic gastritis with atrophic changes, without hemorrhage. Check documentation if the type is unclear.
Do not use for
Do not use K29.40 for gastritis with bleeding, acute gastritis, or nonspecific dyspepsia alone. If the chart does not confirm atrophy or chronicity, check documentation before coding.
Coding tip
Verify both chronic atrophic gastritis and the absence of bleeding in the provider note before assigning K29.40.