Z79.81Header code — not billable

Long term (current) use of agents affecting estrogen receptors and estrogen levels

Short description: Lng trm (crnt) use of agnt aff estrog recpt & estrog levels

Chapter
21. Factors influencing health status and contact with health services
Category
Z79
Effective date
October 1, 2026

Related codes in category Z79

Z79Long term (current) drug therapyZ79.0Long term (current) use of antocoag/antithrom/angiplateZ79.01Long term (current) use of anticoagulantsYesZ79.02Long term (current) use of antithrombotics/antiplateletsYesZ79.1Long term (current) use of non-steroidal non-inflam (NSAID)YesZ79.2Long term (current) use of antibioticsYesZ79.3Long term (current) use of hormonal contraceptivesYesZ79.4Long term (current) use of insulinYesZ79.5Long term (current) use of steroidsZ79.51Long term (current) use of inhaled steroidsYesZ79.52Long term (current) use of systemic steroidsYesZ79.6Long term (crnt) use of immunomodulator & immunosuppressant

Frequently asked questions

What is ICD-10 code Z79.81?

Z79.81 is an ICD-10-CM diagnosis code for Long term (current) use of agents affecting estrogen receptors and estrogen levels.

Is Z79.81 a billable code?

No. Z79.81 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is Z79.81 in?

Z79.81 falls under Chapter 21: Factors influencing health status and contact with health services.

When did Z79.81 become effective?

Z79.81 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Z79.81?

Z79.81 belongs to category Z79, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.