Source Code Name Case count Share of cases (%)
OUTPAT OUTPAT_ICD10(N921) Excessive and frequent menstruation with irregular cycle 5480
OUTPAT OUTPAT_ICD10(N926) Irregular menstruation, unspecified 5021
INPAT INPAT_ICD10(N921) Excessive and frequent menstruation with irregular cycle 2380
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N926) Irregular menstruation, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 2112
INPAT INPAT_ICD10(N926) Irregular menstruation, unspecified 1854
OUTPAT OUTPAT_ICD10(N911) Secondary amenorrhoea 1463
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! 1352
INPAT INPAT_ICD8(62650) Disorders of menstruation, Irregular 1127
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N925) Other specified irregular menstruation. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 1042
OUTPAT OUTPAT_ICD10(N925) Other specified irregular menstruation 914
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N911) Secondary amenorrhoea. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 682
INPAT INPAT_ICD9(6264A) Irregular menstrual cycle 409
OUTPAT OUTPAT_ICD10(N914) Secondary oligomenorrhoea 385
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N912) Amenorrhoea, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 326
OUTPAT OUTPAT_ICD10(N915) Oligomenorrhoea, unspecified 191
OUTPAT OUTPAT_ICD10(N910) Primary amenorrhoea 170
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N915) Oligomenorrhoea, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 164
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N91) Absent, scanty and rare menstruation. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 127
OUTPAT OUTPAT_ICD10(N913) Primary oligomenorrhoea 120
INPAT INPAT_ICD10(N925) Other specified irregular menstruation 107
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N914) Secondary oligomenorrhoea. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 96
OUTPAT OUTPAT_ICD10(N912) Amenorrhoea, unspecified 92
INPAT INPAT_ICD10(N911) Secondary amenorrhoea 67
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N913) Primary oligomenorrhoea. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 37
INPAT INPAT_ICD10(N915) Oligomenorrhoea, unspecified 20
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N910) Primary amenorrhoea. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 19
INPAT INPAT_ICD10(N912) Amenorrhoea, unspecified 17
INPAT INPAT_ICD10(N914) Secondary oligomenorrhoea 14
INPAT INPAT_ICD10(N910) Primary amenorrhoea 10
INPAT INPAT_ICD10(N913) Primary oligomenorrhoea 8
OUTPAT OUTPAT_ICD10(N91) Absent, scanty and rare menstruation 8