Z79.81 Long term (current) use of agents affecting estrogen receptors and estrogen levelsNon-billable header with 3 child codes.
Z79.810 Long term (current) use of selective estrogen receptor modulators (SERMs)Z79.811 Long term (current) use of aromatase inhibitorsZ79.818 Long term (current) use of other agents affecting estrogen receptors and estrogen levelsZ79.6 Long term (current) use of immunomodulators and immunosuppressants ("long term (current) use of agents affecting estrogen receptors and estrogen levels (Z79.81-)")Z51.81 Encounter for therapeutic drug level monitoring ("any long-term (current) drug therapy (Z79.-)")Z92.2 Personal history of drug therapy ("long term (current) drug therapy (Z79.-)")Z79.633 Long term (current) use of mitotic inhibitorZ79.634 Long term (current) use of topoisomerase inhibitorZ79.64 Long term (current) use of myelosuppressive agentZ79.69 Long term (current) use of other immunomodulators and immunosuppressantsZ79.8 Other long term (current) drug therapyZ79.81 Long term (current) use of agents affecting estrogen receptors and estrogen levels (this code)Z79.810 Long term (current) use of selective estrogen receptor modulators (SERMs)Z79.811 Long term (current) use of aromatase inhibitorsZ79.818 Long term (current) use of other agents affecting estrogen receptors and estrogen levelsZ79.82 Long term (current) use of aspirinZ79.83 Long term (current) use of bisphosphonates