ICD-11 classes
13 Diseases of the digestive system
Diseases of appendix
Neoplasms of the appendix
2B81 — Malignant neoplasms of appendix
2B81.0 — Adenocarcinoma of appendix

ICD-11 2B81.0 — Adenocarcinoma of appendix

A malignant neoplasm arising from the glandular epithelium of the appendix. Most are mucinous adenocarcinomas.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis with code 2B81.0 contains 1 clarifying diagnosis:

1. 2B81.00 — Mucinous adenocarcinoma of appendix

The diagnosis is coded elsewhere:

• Malignant neoplasms of appendix #1999