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Chapters ENES DE

13Diseases of the digestive system
Diseases of anal canal
Acquired anatomical alterations of the anal canal
DB50Fissure or fistula of anal regions

DB50.2 category

Anorectal fistula

Also indexed as

Anorectal fistulaanorectum fistula

Nearby in Fissure or fistula of anal regions

DB50.0Anal fissure
DB50.1Anal fistula
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

PreviousDB50.1 — Anal fistula 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
DA40-DA7ZDiseases of the stomach or the duodenum
DA90-DA9ZDiseases of small intestine
DB10-DB1ZDiseases of appendix
DB30-DB3ZDiseases of large intestine
DB50-DB7ZDiseases of anal canal
DB90-DB9ZDiseases of liver
DC10-DC1ZDiseases of gallbladder or biliary tract
DC30-DC3ZDiseases of pancreas
DC50-DC5ZDiseases of peritoneum
10 more
DB50-DB5ZAcquired anatomical alterations of the anal canal
DB60-DB6ZHaemorrhoids or perianal venous conditions
DB70Infections of the anal region
DB71Anal polyp
DB72Certain specified diseases of anal canal
Neoplasms of the anal canal
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
DB50Fissure or fistula of anal regions
DB51Stenosis of anal canal
DB52Ulcer of anus
DB53Anal prolapse
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
DB50.0Anal fissure
DB50.1Anal fistula
DB50.2Anorectal fistula
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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