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ICD-10-CM · FY 2026 APRIL UPDATE

Z79

Long term (current) drug therapy

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
Z79.0Long term (current) use of anticoagulants and antithrombotics/antiplateletsCategory
Z79.01Long term (current) use of anticoagulantsBillable
Z79.02Long term (current) use of antithrombotics/antiplateletsBillable
Z79.1Long term (current) use of non-steroidal anti-inflammatories (NSAID)Billable
Z79.2Long term (current) use of antibioticsBillable
Z79.3Long term (current) use of hormonal contraceptivesBillable
Z79.4Long term (current) use of insulinBillable
Z79.5Long term (current) use of steroidsCategory
Z79.51Long term (current) use of inhaled steroidsBillable
Z79.52Long term (current) use of systemic steroidsBillable
Z79.6Long term (current) use of immunomodulators and immunosuppressantsCategory
Z79.60Long term (current) use of unspecified immunomodulators and immunosuppressantsBillable
Z79.61Long term (current) use of immunomodulatorBillable
Z79.62Long term (current) use of immunosuppressantCategory
Z79.620Long term (current) use of immunosuppressive biologicBillable
Z79.621Long term (current) use of calcineurin inhibitorBillable
Z79.622Long term (current) use of Janus kinase inhibitorBillable
Z79.623Long term (current) use of mammalian target of rapamycin (mTOR) inhibitorBillable
Z79.624Long term (current) use of inhibitors of nucleotide synthesisBillable
Z79.63Long term (current) use of chemotherapeutic agentCategory
Z79.630Long term (current) use of alkylating agentBillable
Z79.631Long term (current) use of antimetabolite agentBillable
Z79.632Long term (current) use of antitumor antibioticBillable
Z79.633Long term (current) use of mitotic inhibitorBillable
Z79.634Long term (current) use of topoisomerase inhibitorBillable
Z79.64Long term (current) use of myelosuppressive agentBillable
Z79.69Long term (current) use of other immunomodulators and immunosuppressantsBillable
Z79.8Other long term (current) drug therapyCategory
Z79.81Long term (current) use of agents affecting estrogen receptors and estrogen levelsCategory
Z79.810Long term (current) use of selective estrogen receptor modulators (SERMs)Billable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.