Source Code Name Case count Share of cases (%)
OUTPAT OUTPAT_ICD10(N921) Excessive and frequent menstruation with irregular cycle 6329
OUTPAT OUTPAT_ICD10(N926) Irregular menstruation, unspecified 5791
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N926) Irregular menstruation, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 2759
INPAT INPAT_ICD10(N921) Excessive and frequent menstruation with irregular cycle 2648
INPAT INPAT_ICD10(N926) Irregular menstruation, unspecified 2072
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N921) Excessive and frequent menstruation with irregular cycle. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 1690
OUTPAT OUTPAT_ICD10(N911) Secondary amenorrhoea 1663
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N925) Other specified irregular menstruation. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 1516
OUTPAT OUTPAT_ICD10(N925) Other specified irregular menstruation 1232
INPAT INPAT_ICD8(62650) Disorders of menstruation, Irregular 1209
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N911) Secondary amenorrhoea. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 811
INPAT INPAT_ICD9(6264A) Irregular menstrual cycle 454
OUTPAT OUTPAT_ICD10(N914) Secondary oligomenorrhoea 439
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N912) Amenorrhoea, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 388
OUTPAT OUTPAT_ICD10(N915) Oligomenorrhoea, unspecified 228
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N915) Oligomenorrhoea, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 196
OUTPAT OUTPAT_ICD10(N910) Primary amenorrhoea 195
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N91) Absent, scanty and rare menstruation. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 156
OUTPAT OUTPAT_ICD10(N913) Primary oligomenorrhoea 133
INPAT INPAT_ICD10(N925) Other specified irregular menstruation 130
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N914) Secondary oligomenorrhoea. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 122
OUTPAT OUTPAT_ICD10(N912) Amenorrhoea, unspecified 113
INPAT INPAT_ICD10(N911) Secondary amenorrhoea 78
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N913) Primary oligomenorrhoea. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 44
INPAT INPAT_ICD10(N915) Oligomenorrhoea, unspecified 22
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N910) Primary amenorrhoea. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 22
INPAT INPAT_ICD10(N912) Amenorrhoea, unspecified 18
INPAT INPAT_ICD10(N914) Secondary oligomenorrhoea 16
INPAT INPAT_ICD10(N910) Primary amenorrhoea 11
INPAT INPAT_ICD10(N913) Primary oligomenorrhoea 9
OUTPAT OUTPAT_ICD10(N91) Absent, scanty and rare menstruation 9