Z79.81
Non-billableLong term (current) use of agents affecting estrogen receptors and estrogen levels
Z79.81 is the ICD-10-CM code for Long term (current) use of agents affecting estrogen receptors and estrogen levels. It is a non-billable category code — use a more specific child code such as Z79.810 for billing.
Z00-Z99 Factors influencing health status and contact with health services
What this means — in plain language
MedlinePlus · NIHHormones are your body's chemical messengers. They travel in your bloodstream to tissues or organs. They work slowly, over time, and affect many different processes, including: Growth and development Metabolism - how your body gets energy from the foods you eat Sexual function Reproduction Mood Endocrine glands, which are special groups of cells, make hormones. The major endocrine glands are the pituitary, pineal,…
Read more about Hormones at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
- •hormone replacement therapy (Z79.890)
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Frequently asked questions
- What is ICD-10 code Z79.81?
- Z79.81 is the ICD-10-CM code for "Long term (current) use of agents affecting estrogen receptors and estrogen levels". It falls under Z00-Z99 Factors influencing health status and contact with health services.
- Is Z79.81 a billable code?
- No — Z79.81 is a non-billable header code. Use a more specific child code (such as Z79.810) for billing.
- What are the subcodes of Z79.81?
- Z79.81 has 3 more specific child codes, including Z79.810, Z79.811, Z79.818.
- What is excluded from Z79.81?
- Excludes1 (not coded here): hormone replacement therapy (Z79.890).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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