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Chapters ENES DE

02Neoplasms
Malignant neoplasms, except primary neoplasms of lymphoid, haematopoietic, central nervous system or related tissues
Malignant neoplasms, stated or presumed to be primary, of specified sites, except of lymphoid, haematopoietic, central nervous system or related tissues
Malignant neoplasms of retroperitoneum, peritoneum or omentum
2C51Malignant neoplasms of peritoneum
2C51.2Mesotheliomas of peritoneum

2C51.21 category

Mesothelioma of mesentery

Also indexed as

Mesothelioma of mesentery

Nearby in Mesotheliomas of peritoneum

2C51.20Mesothelioma of mesocolon
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

Previous2C51.20 — Mesothelioma of mesocolon Next4B4Y — Other specified diseases of the immune system

Browse ICD-11

01Certain infectious or parasitic diseases
02Neoplasms
03Diseases of the blood or blood-forming organs
04Diseases of the immune system
05Endocrine, nutritional or metabolic diseases
06Mental, behavioural or neurodevelopmental disorders
07Sleep-wake disorders
08Diseases of the nervous system
09Diseases of the visual system
10Diseases of the ear or mastoid process
11Diseases of the circulatory system
12Diseases of the respiratory system
13Diseases of the digestive system
14Diseases of the skin
15Diseases of the musculoskeletal system or connective tissue
16Diseases of the genitourinary system
17Conditions related to sexual health
18Pregnancy, childbirth or the puerperium
19Certain conditions originating in the perinatal period
20Developmental anomalies
21Symptoms, signs or clinical findings, not elsewhere classified
22Injury, poisoning or certain other consequences of external causes
23External causes of morbidity or mortality
24Factors influencing health status or contact with health services
25Codes for special purposes
26Supplementary Chapter Traditional Medicine Conditions
VSupplementary section for functioning assessment
XExtension Codes
2A00-2A0ZNeoplasms of central nervous system or related structures
2A20-2B3ZNeoplasms of haematopoietic or lymphoid tissues
2B50-2E2ZMalignant neoplasms, except primary neoplasms of lymphoid, haematopoietic, central nervous system or related tissues
2E60-2E6ZIn situ neoplasms, except of lymphoid, haematopoietic, central nervous system or related tissues
2E80-2F3ZBenign neoplasms, except of lymphoid, haematopoietic, central nervous system or related tissues
2F70-2F7ZNeoplasms of uncertain behaviour, except of lymphoid, haematopoietic, central nervous system or related tissues
2F90-2F9ZNeoplasms of unknown behaviour, except of lymphoid, haematopoietic, central nervous system or related tissues
Inherited cancer-predisposing syndromes
2B50-2D3ZMalignant neoplasms, stated or presumed to be primary, of specified sites, except of lymphoid, haematopoietic, central nervous system or related tissues
2D40-2D4ZMalignant neoplasms of ill-defined or unspecified primary sites
2D50-2E2ZMalignant neoplasm metastases
2B70-2C1ZMalignant neoplasms of digestive organs
2C20-2C29.ZMalignant neoplasms of middle ear, respiratory or intrathoracic organs
2C30-2C3ZMalignant neoplasms of skin
2C40-2C4ZMalignant neoplasms of peripheral nerves or autonomic nervous system
2C50-2C53.ZMalignant neoplasms of retroperitoneum, peritoneum or omentum
2C60-2C6ZMalignant neoplasms of breast
2C70-2C7ZMalignant neoplasms of female genital organs
2C80-2C8ZMalignant neoplasms of male genital organs
2C90-2C9ZMalignant neoplasms of urinary tract
6 more
2C50Malignant neoplasms of retroperitoneum
2C51Malignant neoplasms of peritoneum
2C52Malignant neoplasms of omentum
2C53Malignant neoplasm involving overlapping sites of retroperitoneum, peritoneum or omentum
2C51.0Adenocarcinomas of peritoneum
2C51.1Cystic, mucinous or serous carcinoma of peritoneum
2C51.2Mesotheliomas of peritoneum
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
2C51.20Mesothelioma of mesocolon
2C51.21Mesothelioma of mesentery
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).

Release 2026-01. View this entity in the official WHO ICD-11 browser.

This page reproduces WHO classification content for reference. It is not medical advice and must not be used to diagnose or treat. For coding decisions, consult the official release and your national coding guidelines.

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