ICD-10 Code K31.819 – Angiodysplasia of stomach and duodenum without bleeding (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K31.819 – Angiodysplasia of stomach and duodenum without bleeding
What it is
K31.819 identifies angiodysplasia in the stomach or duodenum when there is no active bleeding. It describes a vascular lesion in the upper gastrointestinal tract that is documented without hemorrhage.
Clinical signs
Clinical features vary; refer to documentation. This diagnosis is usually supported by endoscopic identification of angiodysplasia in the stomach or duodenum, with no evidence of current bleeding.
When to use this code
Use K31.819 when the provider documents angiodysplasia of the stomach or duodenum and specifically states there is no bleeding. It also fits cases where the lesion is found incidentally during endoscopy or evaluation for another problem. If bleeding is present, check documentation for a different code.
Do not use for
Do not use this code for angiodysplasia with active gastrointestinal bleeding or when the site is elsewhere in the digestive tract. If the record does not clearly state stomach or duodenum involvement, check documentation.
Coding tip
Code only when the note clearly distinguishes nonbleeding angiodysplasia from a bleeding lesion.