The hormone replacement therapy ICD 10 code typically falls under the category Z79.890 — which identifies “Hormone replacement therapy.” This code is used by healthcare providers to indicate that a patient is receiving ongoing hormone replacement treatment. It is not a diagnosis itself but rather a note that HRT is part of the patient’s current care. For example, if a woman visits her... https://ahhms.org/hormone-replacement-therapy-for-weight-loss/