All ICD10 Codes

Z79.81

Non-Billable
ChapterZ00–Z99
Ranksubcategory
Official Description

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

Use a more specific code (3 billable)
Z79.810Long term (current) use of selective estrogen receptor modulators (SERMs)Z79.811Long term (current) use of aromatase inhibitorsZ79.818Long term (current) use of other agents affecting estrogen receptors and estrogen levels
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 21: Factors Influencing Health Status and Contact with Health Services (Z00-Z99).

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • hormone replacement therapy (Z79.890)
Code First
  • , if applicable:
  • malignant neoplasm of breast (C50.-)
  • malignant neoplasm of prostate (C61)
Use Additional Code
  • code, if applicable, to identify:
  • estrogen receptor positive status (Z17.0)
  • family history of breast cancer (Z80.3)
  • genetic susceptibility to malignant neoplasm (cancer) (Z15.0-)
  • personal history of breast cancer (Z85.3)
  • personal history of prostate cancer (Z85.46)
  • postmenopausal status (Z78.0)
General instructions are available for the parent sections:
View Z77-Z99 NotesView Z79 Notes

Clinical Hierarchy

BillableHas subcodes
CH21Factors influencing health status and contact with health services (Z00-Z99)
Z77-Z99Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
Z79Long term (current) drug therapy
Z79.8Other long term (current) drug therapy
Z79.81Long term (current) use of agents affecting estrogen receptors and estrogen levelsNot billable
Z79.810Long term (current) use of selective estrogen receptor modulators (SERMs)Billable
Z79.811Long term (current) use of aromatase inhibitorsBillable
Z79.818Long term (current) use of other agents affecting estrogen receptors and estrogen levelsBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Z79.81:

categoryZ79
Long term (current) drug therapy
View context instructions
blockZ77-Z99
Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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