ICD-10 Code K29.80 – Duodenitis without bleeding (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K29.80 – Duodenitis without bleeding
What it is
K29.80 identifies inflammation of the duodenum without evidence of bleeding. Use it when documentation states duodenitis and specifically notes that no bleeding is present.
Clinical signs
Clinical features vary; refer to documentation. Commonly noted findings include upper abdominal pain, nausea, or endoscopic evidence of duodenal inflammation without hemorrhage.
When to use this code
Use this code when the provider documents duodenitis and excludes active bleeding. It also fits cases where endoscopy, imaging, or pathology supports duodenal inflammation without hemorrhagic findings. If the record only says “duodenitis” and bleeding status is unclear, check documentation.
Do not use for
Do not use K29.80 if the record documents duodenitis with bleeding, because a different code applies. Do not assign it for nonspecific abdominal pain or peptic ulcer disease without documented duodenitis.
Coding tip
Confirm the absence of bleeding in the provider note before coding K29.80.