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Chapters ENES DE

16Diseases of the genitourinary system
Diseases of the female genital system
Abnormal uterine or vaginal bleeding

GA20 category

Menstrual cycle bleeding disorders

8 subordinate codes

GA20.0Amenorrhoea
GA20.1Abnormal frequency of uterine bleeding
GA20.2Ovulation bleeding
GA20.3Abnormal regularity of uterine bleeding
GA20.4Abnormal duration of uterine bleeding
GA20.5Abnormal volume of uterine bleeding
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

Nearby in Abnormal uterine or vaginal bleeding

GA21Nonmenstrual bleeding disorders
GA22Excessive menstruation with irregular cycle
GA23Anovulatory bleeding
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

NextGA21 — Nonmenstrual bleeding disorders

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
GA00-GA6ZDiseases of the female genital system
GA80-GB0ZDiseases of the male genital system
GB20-GB2YDisorders of breast
GB40-GC2ZDiseases of the urinary system
GC40-GC51.ZOther conditions of the genitourinary system
GC70-GC7CPostprocedural disorders of genitourinary system
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
GA00-GA0ZInflammatory disorders of the female genital tract
GA10Endometriosis
GA11Adenomyosis
GA12-GA1ZNoninflammatory disorders of female genital tract
GA20-GA2ZAbnormal uterine or vaginal bleeding
GA30Menopausal or perimenopausal disorders
GA31Female infertility
GA32Complications associated with medically assisted reproduction
GA33Recurrent pregnancy loss
6 more
GA20Menstrual cycle bleeding disorders
GA21Nonmenstrual bleeding disorders
GA22Excessive menstruation with irregular cycle
GA23Anovulatory bleeding
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
GA20.0Amenorrhoea
GA20.1Abnormal frequency of uterine bleeding
GA20.2Ovulation bleeding
GA20.3Abnormal regularity of uterine bleeding
GA20.4Abnormal duration of uterine bleeding
GA20.5Abnormal volume of uterine bleeding
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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