Z79.81
Long term (current) use of agents affecting estrogen receptors and estrogen levels
Z79.81 is a non-billable ICD-10-CM code header for long term (current) use of agents affecting estrogen receptors and estrogen levels. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Z79.810 Long term (current) use of selective estrogen receptor modulators (SERMs), Z79.811 Long term (current) use of aromatase inhibitors and Z79.818 Long term (current) use of other agents affecting estrogen receptors and estrogen levels. Its coding notes include a Code first instruction, a Use additional code instruction, a Code also instruction, 1 Excludes1 entry and 2 Excludes2 entries.
Code first
If the underlying condition listed here is present and known, sequence it first.
Use additional code
Add the listed code as a secondary code, if known.
Code also
Two codes may be needed to describe the condition. This note gives no sequencing order.
Also from chapter/block level (1 note)
- any follow-up examination (Z08-Z09)
Excludes1
Not coded here. The listed conditions generally should not be reported together.
- hormone replacement therapy (Z79.890)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Includes
Further defines or gives examples of the content of the category.
- long term (current) drug use for prophylactic purposes
Notes
Also from chapter/block level (3 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:
- (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.