ICD-11 classes
16 Diseases of the genitourinary system
Diseases of the female genital system
Symptoms, signs or clinical findings involving the female...
GA20 — Menstrual cycle bleeding disorders
GA20.0 — Amenorrhoea

ICD-11 GA20.0 — Amenorrhoea

A condition of the genital system, caused by hormonal or endocrine disturbances, absence of the uterus, pregnancy, lactation, abnormalities of the genital outflow tract, or failure of the ovaries to retain egg cells during the antenatal period. This condition is characterised by the absence of menstruation by age 16, or the termination of an established menstruation cycle for more than 3-9 months.

The diagnosis includes nothing.

Diagnosis with code GA20.0 contains 5 clarifying diagnoses:

1. GA20.00 — Primary amenorrhoea
   It contains 1 clarifying diagnosis.
2. GA20.01 — Secondary amenorrhoea
3. GA20.02 — Lactational amenorrhoea
4. GA20.0Y — Other specified amenorrhoea
5. GA20.0Z — Amenorrhoea, unspecified

The diagnosis is coded elsewhere:

• Menstrual cycle bleeding disorders #19079
• Amenorrhoea #19080
• Menstrual cycle bleeding disorders #20419
• Amenorrhoea #20420
• Menstrual cycle bleeding disorders #24865
• Amenorrhoea #24866