ICD-11 definition : No menses by age 14 in the absence of growth or development of secondary sexual characteristics
; OR; no menses by age 16 regardless of the presence of normal growth and development
of secondary sexual characteristics;
ICD-11 synonym : primary physiologic amenorrhoea;
ICD-11 inclusion : menstruation delay; delayed menses; failure of menstruation at puberty;
No menses by age 14 in the absence of growth or development of secondary sexual characteristics
; OR; no menses by age 16 regardless of the presence of normal growth and development
of secondary sexual characteristics