Source Code Name Case count Share of cases (%)
INPAT INPAT_ICD8(61000) Chronic cystic disease of breast, Fibroadenomatosis mammae 592
OUTPAT OUTPAT_ICD10(N601) Diffuse cystic mastopathy 580
OUTPAT OUTPAT_ICD10(N602) Fibroadenosis of breast 481
OUTPAT OUTPAT_ICD10(N609) Benign mammary dysplasia, unspecified 443
INPAT INPAT_ICD9(6101A) Diffuse cystic mastopathy 366
INPAT INPAT_ICD8(61099) Chronic cystic disease of breast, Unspecified 363
OUTPAT OUTPAT_ICD10(N600) Solitary cyst of breast 361
OUTPAT OUTPAT_ICD10(N608) Other benign mammary dysplasias 266
INPAT INPAT_ICD10(N602) Fibroadenosis of breast 262
INPAT INPAT_ICD10(N609) Benign mammary dysplasia, unspecified 206
INPAT INPAT_ICD8(61001) Chronic cystic disease of breast, Cysta (cystis) mammae 187
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N600) Solitary cyst of breast. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 170
INPAT INPAT_ICD10(N601) Diffuse cystic mastopathy 167
INPAT INPAT_ICD8(61008) Chronic cystic disease of breast, Alia definita 167
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N602) Fibroadenosis of breast. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 146
INPAT INPAT_ICD10(N608) Other benign mammary dysplasias 127
OUTPAT OUTPAT_ICD10(N604) Mammary duct ectasia 122
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N601) Diffuse cystic mastopathy. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 116
INPAT INPAT_ICD8(61009) Chronic cystic disease of breast 108
INPAT INPAT_ICD9(6102A) Fibroadenosis of breast 108
INPAT INPAT_ICD10(N600) Solitary cyst of breast 96
OUTPAT OUTPAT_ICD10(N603) Fibrosclerosis of breast 87
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N60) Benign mammary dysplasia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 80
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N609) Benign mammary dysplasia, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 65
INPAT INPAT_ICD10(N604) Mammary duct ectasia 42
INPAT INPAT_ICD9(6100A) Solitary cyst of breast 41
INPAT INPAT_ICD9(6109X) Benign mammary dysplasia, unspecified 41
INPAT INPAT_ICD9(6108X) Other specified benign mammary dysplasias 34
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N608) Other benign mammary dysplasias. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 33
INPAT INPAT_ICD10(N603) Fibrosclerosis of breast 27
INPAT INPAT_ICD9(6104A) Mammary duct ectasia 23
INPAT INPAT_ICD9(6103A) Fibrosclerosis of breast 22
OUTPAT OUTPAT_ICD10(N60) Benign mammary dysplasia 10
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(N604) Mammary duct ectasia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 10
INPAT INPAT_ICD8(61010) Name not found 8