ICD-10-CM > Z00-Z99 > Z77-Z99 > Z79 > Z79.8 > Z79.81 Z79.81 Long term (current) use of agents affecting estrogen receptors and estrogen levels Non-Billable/Non-Specific Code First , if applicable:malignant neoplasm of breast (C50.-)malignant neoplasm of prostate (C61) Use Additional code, if applicable, to identify:estrogen receptor positive status (Z17.0)family history of breast cancer (Z80.3)genetic susceptibility to malignant neoplasm (cancer) (Z15.0-)personal history of breast cancer (Z85.3)personal history of prostate cancer (Z85.46)postmenopausal status (Z78.0) Type 1 Excludes hormone replacement therapy (Z79.890) Codes Z79.810Long term (current) use of selective estrogen receptor modulators (SERMs)Z79.811Long term (current) use of aromatase inhibitorsZ79.818Long term (current) use of other agents affecting estrogen receptors and estrogen levels