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XExtension Codes
Histopathology
Cystic, mucinous and serous neoplasms
Cystic, mucinous and serous neoplasms, malignant

XH83J5 category

Pseudomyxoma peritonei

Also indexed as

Pseudomyxoma peritonei

Nearby in Cystic, mucinous and serous neoplasms, malignant

XH5WU3Intraductal papillary-mucinous carcinoma, invasive
XH2SE1Intraductal papillary mucinous neoplasm with an associated invasive carcinoma
XH0572Micropapillary serous carcinoma
XH5P21Solid pseudopapillary carcinoma
XH0219Cystadenocarcinoma, NOS
XH7A08Serous carcinoma, NOS
XH6JU6Papillary cystadenocarcinoma, NOS
XH12V5Low grade serous carcinoma

PreviousXH5EQ2 — Mucinous tubular and spindle cell carcinoma NextXH4KC5 — Mucinous carcinoma, gastric type

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
Temporality
Aetiology
Topology Scale Value
Anatomy and topography
Histopathology
Dimensions of injury
Dimensions of external causes
Consciousness
Substances
5 more
Basal cell neoplasms
Blood vessel tumours
Complex epithelial neoplasms
Complex mixed and stromal neoplasms
Cystic, mucinous and serous neoplasms
Ductal and lobular neoplasms
Epithelial neoplasms, NOS
Fibroepithelial neoplasms
Fibromatous neoplasms
41 more
Cystic, mucinous and serous neoplasms, benign
Cystic, mucinous and serous neoplasms, in situ
Cystic, mucinous and serous neoplasms, malignant
Cystic, mucinous and serous neoplasms, uncertain whether benign or malignant
XH24N6High grade serous carcinoma
XH1390Mucinous cystadenocarcinoma, NOS
XH1K19Mucinous cystic tumour with an associated invasive carcinoma
XH4186Seromucinous carcinoma
XH1S75Mucinous adenocarcinoma
XH4U83Pseudomyxoma peritonei with unknown primary site
XH5EQ2Mucinous tubular and spindle cell carcinoma
XH83J5Pseudomyxoma peritonei
XH4KC5Mucinous carcinoma, gastric type
XH56K0Metastatic signet ring cell carcinoma
XH5AF5Mucin-producing adenocarcinoma
XH4546Signet ring cell carcinoma
XH2KK0Poorly cohesive carcinoma
XH3RD4Krukenberg tumour
XH0XE5Signet ring cell/histiocytoid carcinoma
9 more

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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