Neuroendocrine neoplasms of appendix

Description

Malignant neoplasms with neuroendocrine differentiation that arise in the appendix. Most are well differentiated neuroendocrine tumours (low and intermediate grade), i.e. carcinoids. Poorly differentiated neuroendocrine carcinomas (high grade) are exceedingly rare.

Coding note from above levels

For use of this category, reference should be made to the mortality coding rules and guidelines in the Reference Guide.

Index terms

Neuroendocrine neoplasms of appendix
Neuroendocrine tumour of appendix
NET- [neuroendocrine tumour] of appendix

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appendiceal carcinoid tumour
carcinoid tumour of appendix
Neuroendocrine tumour, G1 of appendix
Neuroendocrine tumour, G2 of appendix
Neuroendocrine carcinoma of appendix
NEC - [neuroendocrine carcinoma] of appendix
Large cell neuroendocrine carcinoma of appendix
Small cell neuroendocrine carcinoma of appendix
Other specified neuroendocrine neoplasms of appendix
Mixed adenoneuroendocrine carcinoma of appendix

Exclusions from above levels

http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms
http://id.who.int/icd/entity/111033337 – Malignant neoplasm metastasis in digestive system
http://id.who.int/icd/entity/794095161 – Malignant neoplasms of lip, oral cavity or pharynx

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http://id.who.int/icd/entity/879154182 – Neoplasms of central nervous system or related structures
http://id.who.int/icd/entity/944754984 – Neoplasms of haematopoietic or lymphoid tissues

Sibling codes

2B81.0 – Adenocarcinoma of appendix
2B81.Y – Other specified malignant neoplasms of appendix
2B81.Z – Malignant neoplasms of appendix, unspecified

Foundation entity

Neuroendocrine neoplasms of appendix – http://id.who.int/icd/entity/1590340268

Allowed postcoordination axes

Part of: 2B81: Malignant neoplasms of appendix › 02: Neoplasms