ICD-11 classes
02 Neoplasms
Malignant neoplasms, except primary neoplasms of lymphoid,...
Malignant neoplasms, stated or presumed to be primary, of...
Malignant neoplasms of digestive organs
Malignant neoplasms of intestine
2B80 — Malignant neoplasms of small intestine
2B80.0 — Malignant neoplasms of duodenum

ICD-11 2B80.0 — Malignant neoplasms of duodenum

A primary malignant neoplasm that affects the duodenum. Representative examples include carcinoma, lymphoma, and sarcoma.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis with code 2B80.0 contains 4 clarifying diagnoses:

1. 2B80.00 — Adenocarcinoma of duodenum
2. 2B80.01 — Neuroendocrine neoplasm of duodenum
3. 2B80.0Y — Other specified malignant neoplasms of the duodenum
4. 2B80.0Z — Malignant neoplasms of duodenum, unspecified

The diagnosis is coded elsewhere:

• Neoplasms of the duodenum #13762
• Malignant neoplasms of duodenum #13763
• Malignant neoplasms of small intestine #13966
• Malignant neoplasms of duodenum #13967