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ICD-10 Code Z79.810: Long term (current) use of selective estrogen receptor modulators (SERMs)

Z79.810 is a billable ICD-10 diagnosis code used to classify Long term (current) use of selective estrogen receptor modulators (SERMs) in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Factors influencing health status and contact with health services (Z00-Z99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Factors influencing health status and contact with health services (Z00-Z99).

When is it used?

  • May be used when a clinician documents long term (current) use of selective estrogen receptor modulators (serms) in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
21Factors influencing health status and contact with health services (Z00-Z99)
block
Z77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status
category
Z79Long term (current) drug therapy
category
Z79.8Other long term (current) drug therapy
category
Z79.81Long term (current) use of agents affecting estrogen receptors and estrogen levels
currentZ79.81

Official coding notes

Inclusion terms
  • Long term (current) use of raloxifene (Evista)
  • Long term (current) use of tamoxifen (Nolvadex)
  • Long term (current) use of toremifene (Fareston)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

General Physician

Coding guidelines

Common synonyms

Long term (current) use of selective estrogen receptor modulators (SERMs)Long termLong term current use of selective estrogen receptor modulators SERMs

Frequently asked questions

Code details

CodeZ79.810
SystemICD10
Display nameLong term (current) use of selective estrogen receptor modulators (SERMs)
ChapterFactors influencing health status and contact with health services (Z00-Z99)
BlockPersons with potential health hazards related to family and personal history and certain conditions influencing health status

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Long-term(current) (prophylactic) drug therapy (use of)Long-term(current) (prophylactic) drug therapy (use of)Long-term(current) (prophylactic) drug therapy (use of)Long-term(current) (prophylactic) drug therapy (use of)Long-term(current) (prophylactic) drug therapy (use of)Long-term(current) (prophylactic) drug therapy (use of)Long-term(current) (prophylactic) drug therapy (use of)TherapyTherapyTherapyTherapyTherapy

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code Z79.810 for Long term (current) use of selective estrogen receptor modulators (SERMs) | HealthAssure