ICD-10 Code K29.7 – Gastritis, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K29.7 – Gastritis, unspecified
What it is
K29.7 identifies gastritis when the record does not specify the type, cause, or acuity. Use it for inflammation of the stomach lining documented simply as gastritis.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include upper abdominal pain, nausea, vomiting, bloating, or indigestion, but these are not enough alone to assign the code.
When to use this code
Use K29.7 when the provider documents gastritis without further detail, such as acute, chronic, erosive, or alcoholic gastritis. It also fits when the note confirms gastritis but does not identify a specific cause. If the record later clarifies the subtype, code the more specific diagnosis instead.
Do not use for
Do not use K29.7 when the documentation names a specific gastritis type or cause, such as erosive, alcoholic, or chronic gastritis. Check documentation if the condition is actually peptic ulcer disease or another stomach disorder.
Coding tip
If the note only says “gastritis,” code K29.7 and query for specificity when clinically supported.