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Chapters ENES DE

03Diseases of the blood or blood-forming organs
Diseases of spleen
3B81Acquired disorders of spleen

3B81.5 category

Splenic cyst or pseudocyst

4 subordinate codes

3B81.50Pseudocyst of spleen
3B81.51Epithelial cyst of spleen
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

Nearby in Acquired disorders of spleen

3B81.0Tumour-like conditions of spleen
3B81.1Postsurgical asplenia
3B81.2Atrophy of spleen
3B81.3Nontraumatic laceration or rupture of spleen
3B81.4Splenosis
3B81.6Infarction of spleen
3B81.7Infection of spleen
3B81.8Torsion of spleen

Previous3B81.4 — Splenosis Next3B81.6 — Infarction of spleen

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
3A00-3A9ZAnaemias or other erythrocyte disorders
3B10-3B6ZCoagulation defects, purpura or other haemorrhagic or related conditions
3B80-3B8ZDiseases of spleen
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
3B80Congenital disorders of spleen
3B81Acquired disorders of spleen
4B4ZDiseases of the immune system, unspecified
3B81.0Tumour-like conditions of spleen
3B81.1Postsurgical asplenia
3B81.2Atrophy of spleen
3B81.3Nontraumatic laceration or rupture of spleen
3B81.4Splenosis
3B81.5Splenic cyst or pseudocyst
3B81.6Infarction of spleen
3B81.7Infection of spleen
3B81.8Torsion of spleen
3B81.9Fibrosis of spleen
3B81.APerisplenitis
3B81.BHypersplenism
3B81.CChronic congestive splenomegaly
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
3B81.50Pseudocyst of spleen
3B81.51Epithelial cyst of spleen
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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