ICD-10-CM Z79.8: Other long term (current) drug therapy

ICD-10-CM Diagnosis Code (2025)

Official Description for Z79.8

Other long term (current) drug therapy

Coding Notes & Guidelines for Z79.8

Excludes1: Not Coded Here

hormone replacement therapy (Z79.890)

Excludes1: Not Coded Here
  • methodone use NOS (F11.9-)
  • use of methodone for treatment of heroin addiction (F11.2-)
Excludes2: Not Included Here
  • long-term (current) use of injectable non-insulin antidiabetic drugs (Z79.85)
  • long term (current) use of insulin (Z79.4)
Excludes2: Not Included Here
  • long term (current) use of insulin (Z79.4)
  • long term (current) use of oral hypoglycemic drugs (Z79.84)
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)
Inclusion Terms
  • Long term (current) use of raloxifene (Evista)
  • Long term (current) use of tamoxifen (Nolvadex)
  • Long term (current) use of toremifene (Fareston)
Inclusion Terms
  • Long term (current) use of anastrozole (Arimidex)
  • Long term (current) use of exemestane (Aromasin)
  • Long term (current) use of letrozole (Femara)
Inclusion Terms
  • Long term (current) use of estrogen receptor downregulators
  • Long term (current) use of fulvestrant (Faslodex)
  • Long term (current) use of gonadotropin-releasing hormone (GnRH) agonist
  • Long term (current) use of goserelin acetate (Zoladex)
  • Long term (current) use of leuprolide acetate (leuprorelin) (Lupron)
  • Long term (current) use of megestrol acetate (Megace)
Inclusion Terms

Long term (current) use of oral antidiabetic drugs

Inclusion Terms

Long term (current) use of methadone for pain management

Parent Code (Less Specific):

Z79 - Long term (current) drug therapy

About ICD-10-CM Code Z79.8 (Other long term)

ICD-10-CM code Z79.8 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM Z79.8 became effective on October 1, 2024.

This page provides detailed information about Z79.8 - Other long term (current) drug therapy. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other long term.