Z79.811

Z79.811: Long term (current) use of aromatase inhibitors

Billable / specific codeICD-10-CMPOA exempt

Z79.811 is a billable, specific ICD-10-CM code for long term (current) use of aromatase inhibitors. It is valid for submission on a claim.

Check Z79.811 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Long term (current) use of anastrozole (Arimidex)
Long term (current) use of exemestane (Aromasin)
Long term (current) use of letrozole (Femara)

Excludes1 inherited from the categories above Z79.811

A category’s note binds every code beneath it.

Written on Z79.81: Long term (current) use of agents affecting estrogen receptors and estrogen levels

hormone replacement therapy (Z79.890)

Excludes2 inherited from the categories above Z79.811

Not part of this code, but both may be coded when both are present.

Written on Z79: Long term (current) drug therapy

drug abuse and dependence (F11-F19)
drug use complicating pregnancy, childbirth, and the puerperium (O99.32-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Z79.811 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A52399Billing and Coding: Denosumab (Prolia®, Xgeva®, Jubbonti®) and biosimilars
A56907Billing and Coding: Bisphosphonate Drug Therapy
A57132Billing and Coding: Bone Mass Measurement
A57718Billing and Coding: Vitamin D Assay Testing

Alphabetic index entries that lead here

Long-term›anastrozole(Arimidex)
Long-term›aromatase inhibitors
Long-term›exemestane(Aromasin)
Long-term›letrozole(Femara)
Therapy›drug, long-term›anastrozole(Arimidex)
Therapy›drug, long-term›aromatase inhibitors
Therapy›drug, long-term›exemestane(Aromasin)
Therapy›drug, long-term›letrozole(Femara)

Code history

Unchanged in every release from FY2024 to FY2027.