Z79.818
Long term (current) use of other agents affecting estrogen receptors and estrogen levels
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 2 never code together
Instructional notes 12
Z79.818code
Inclusion terms
- Long term (current) use of estrogen receptor downregulators
- Long term (current) use of fulvestrant (Faslodex)
- Long term (current) use of gonadotropin-releasing hormone (GnRH) agonist
- Long term (current) use of goserelin acetate (Zoladex)
- Long term (current) use of leuprolide acetate (leuprorelin) (Lupron)
- Long term (current) use of megestrol acetate (Megace)
Z79code
Includes
- long term (current) drug use for prophylactic purposes
Code also
- any therapeutic drug level monitoring (Z51.81)Z51.81
Z00-Z99chapter
Notes
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:Z00-Z99A00-Y89
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
Index entries leading here 2
- Long-term (current) (prophylactic) drug therapy (use of)
- agents affecting estrogen receptors and estrogen levels NEC Z79.818
- estrogen receptor downregulators Z79.818
- fulvestrant (Faslodex) Z79.818
- gonadotropin-releasing hormone (GnRH) agonist Z79.818
- goserelin acetate (Zoladex) Z79.818
- leuprolide acetate (leuprorelin) (Lupron) Z79.818
- megestrol acetate (Megace) Z79.818
- Therapy
- drug, long-term (current) (prophylactic)
- agents affecting estrogen receptors and estrogen levels NEC Z79.818
- estrogen receptor downregulators Z79.818
- leuprolide acetate (leuprorelin) (Lupron) Z79.818
- goserelin acetate (Zoladex) Z79.818
- gonadotropin-releasing hormone (GnRH) agonist Z79.818
- fulvestrant (Faslodex) Z79.818
- megestrol acetate (Megace) Z79.818
- drug, long-term (current) (prophylactic)
Alongside this code 2 same parent — Z79.81
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.