Z79.8 is the authoritative medical code for Other long term current drug therapy. This classification is used in medical billing and clinical recording to specify the clinical criteria for other long term current drug therapy (ICD-10-CM Z79.8), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Other long term current drug therapy is a non-billable ICD-10-CM category code Z79.8. A more specific billable subcode must be selected for claims submission. Includes: long term current drug use for prophylactic purposes. Excludes2 (not included here): drug abuse and dependence F11-F19; drug use complicating pregnancy, childbirth, and the puerperium O99.32-. Code also: any therapeutic drug level monitoring Z51.81; any follow-up examination Z08-Z09.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Z79.8 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- long term current drug use for prophylactic purposes
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- drug abuse and dependence F11-F19
- drug use complicating pregnancy, childbirth, and the puerperium O99.32-
Code Also
Additional codes that may be required to fully describe the encounter.
- any therapeutic drug level monitoring Z51.81
- any follow-up examination Z08-Z09
Frequently Asked Questions (FAQ) & Clinical Guidance
Can Z79.8 be billed directly?
No. Z79.8 (Other long term current drug therapy) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Can Z79.8 be reported alongside related conditions?
Per Excludes2 instructions, Z79.8 and the following may both be reported when both are present: drug abuse and dependence (F11-F19); drug use complicating pregnancy, childbirth, and the puerperium (O99.32-).
Codes in This Family (12)
Official ICD-10-CM classifications in the same code family as Z79.8, with their registry titles.
- Z79.81 — Long term (current) use of agents affecting estrogen receptors and estrogen levels
- Z79.810 — Long term (current) use of selective estrogen receptor modulators (SERMs)
- Z79.811 — Long term (current) use of aromatase inhibitors
- Z79.818 — Long term (current) use of other agents affecting estrogen receptors and estrogen levels
- Z79.82 — Long term (current) use of aspirin
- Z79.83 — Long term (current) use of bisphosphonates
- Z79.84 — Long term (current) use of oral hypoglycemic drugs
- Z79.85 — Long-term (current) use of injectable non-insulin antidiabetic drugs
- Z79.89 — Other long term (current) drug therapy
- Z79.890 — Hormone replacement therapy
- Z79.891 — Long term (current) use of opiate analgesic
- Z79.899 — Other long term (current) drug therapy
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