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Chapters ENES DE

XExtension Codes
Anatomy and topography
Functional anatomy
Genitourinary system
Urinary system
XA77K2Urinary bladder

XA6KF2 category

Trigone of bladder

2 subordinate codes

XA4P63Ureteric orifice
XA8KN5Internal urethral orifice

Also indexed as

Trigone of bladderTrigone of urinary bladder

Nearby in Urinary bladder

XA2PT2Dome of bladder
XA0R03Bladder wall
XA0VZ5Bladder neck

PreviousXA0R03 — Bladder wall NextXA0VZ5 — Bladder neck

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
Severity Scale Value
Temporality
Aetiology
Topology Scale Value
Anatomy and topography
Histopathology
Dimensions of injury
Dimensions of external causes
Consciousness
5 more
Functional anatomy
Surface topography
Partonomic view
Nervous system
Visual system
Auditory system
Circulatory system
Respiratory system
Digestive system
Integumentary system
Musculoskeletal system
Genitourinary system
3 more
Urinary system
Reproductive system
XA6KU8Kidney
XA7156Ureter
XA77K2Urinary bladder
XA5TA5Urethra
XA4V93Urinary tract, not elsewhere classified
XA2PT2Dome of bladder
XA0R03Bladder wall
XA6KF2Trigone of bladder
XA0VZ5Bladder neck
XA4P63Ureteric orifice
XA8KN5Internal urethral orifice

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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