Z79.81
Header — not billableLong term (current) use of agents affecting estrogen receptors and estrogen levels
The ICD-10 code for long term (current) use of agents affecting estrogen receptors and estrogen levels is Z79.81.
Z79.81 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.
Clinical notes
Code first
This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- hormone replacement therapy (Z79.890)
Use additional code
This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
- •If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Z79.82Long term (current) use of aspirin
- Z79.83Long term (current) use of bisphosphonates
- Z79.84Long term (current) use of oral hypoglycemic drugs
- Z79.85Long-term (current) use of injectable non-insulin antidiabetic drugs
- Z79.89Other long term (current) drug therapynon-billable header
- Z79.81Long term (current) use of agents affecting estrogen receptors and estrogen levelsnon-billable header