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    v1.0.28
    OpenPayerBilling CodesPersons with potential health hazards related to family and personal history and certain conditions influencing health statusICD-10-CM z79-long-term-drug-therapy
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    ICD-10-CM Code For Long Term Current Drug Therapy: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group Z79 includes codes that identify patients on long-term or current drug therapy for chronic conditions, documenting ongoing medication use such as anticoagulants, immunosuppressants, hormonal replacement, and other maintenance pharmacotherapies. These ICD-10-CM diagnosis codes are used to document treatment status and therapy-related considerations, capturing medication dependence and therapy duration that can affect clinical management and care coordination. Accurate coding within the ICD-10-CM Z79 group supports complete clinical documentation and appropriate reimbursement.

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    ICD-10-CM Z79: Long Term (Current) Drug Therapy Overview

    The ICD-10-CM Z79 code group identifies patients receiving long-term or current drug therapy for chronic conditions across various body systems, such as endocrine, cardiovascular, neurologic, and immunologic disorders. These codes capture ongoing medication use rather than the underlying disease etiology. Accurate coding matters for complete clinical documentation and supports correct claim processing and reimbursement.

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    When to Use

    Use a code from this group when a patient is documented as receiving prolonged or current drug therapy for a chronic condition and the medication status needs to be recorded. These codes complement but do not replace codes for the underlying disease when applicable.

    ICD-10-CM Codes

    32 rows

    ICD-10-CM CodeDescription
    Z79.01Long term (current) use of anticoagulants
    Z79.02Long term (current) use of antithrombotics/antiplatelets
    Z79.1Long term (current) use of non-steroidal anti-inflammatories (NSAID)
    Z79.2Long term (current) use of antibiotics
    Z79.3Long term (current) use of hormonal contraceptives
    Z79.4Long term (current) use of insulin
    Z79.51Long term (current) use of inhaled steroids
    Z79.52Long term (current) use of systemic steroids
    Z79.60Long term (current) use of unspecified immunomodulators and immunosuppressants
    Z79.61Long term (current) use of immunomodulator
    Z79.620Long term (current) use of immunosuppressive biologic
    Z79.621Long term (current) use of calcineurin inhibitor
    Z79.622Long term (current) use of Janus kinase inhibitor
    Z79.623Long term (current) use of mammalian target of rapamycin (mTOR) inhibitor
    Z79.624Long term (current) use of inhibitors of nucleotide synthesis
    Z79.630Long term (current) use of alkylating agent
    Z79.631Long term (current) use of antimetabolite agent
    Z79.632Long term (current) use of antitumor antibiotic
    Z79.633Long term (current) use of mitotic inhibitor
    Z79.634Long term (current) use of topoisomerase inhibitor

    Showing 1–20 of 32

    DRG Codes

    3 rows

    DRG CodeDescription
    949Aftercare with CC/MCC
    950Aftercare without CC/MCC
    951Other Factors Influencing Health Status

    Typical Clinical Scenarios

    • An adult patient with type 1 diabetes presents for a routine outpatient visit for ongoing insulin management and prescription refill. The patient is clinically stable on long‑term insulin therapy without current complications, and the visit documents chronic use of insulin as part of maintenance care; a code from this group is assigned to indicate continuous drug therapy. Typical codes: Z79.4, Z79.810
    • An elderly patient arrives to the emergency department after a fall; evaluation reveals atrial fibrillation for which the patient has been taking an oral anticoagulant for stroke prevention for several years. The ED and inpatient teams note the chronic anticoagulation status to guide acute management and bleeding risk assessment, so a long‑term drug therapy code is recorded as a comorbid condition. Typical codes: Z79.01, Z79.02
    • A middle‑aged patient with hyperlipidemia attends a primary care visit for cardiovascular risk assessment while on chronic statin therapy following a prior myocardial infarction. The clinician documents the patient’s ongoing lipid‑lowering medication use as part of secondary prevention, and a long‑term drug therapy code is used to capture that maintenance treatment. Typical codes: Z79.51, Z79.52}

    Related Codes

    Z77-OTHER-CONTACT-WITH-EXPOSURES

    ICD-10-CM Code For Other Contact With And Suspected Exposures Hazardous To Health: Group Overview

    Z78-OTHER-SPECIFIED-HEALTH-STATUS

    ICD-10-CM Code For Other Specified Health Status: Group Overview

    Z80-FAMILY-HISTORY-OF-CANCER

    ICD-10-CM Code For Family History Of Primary Malignant Neoplasm: Group Overview

    Z81-FAMILY-HISTORY-OF-MENTAL-DISORDERS

    ICD-10-CM Code For Family History Of Mental And Behavioral Disorders: Group Overview

    Z82-FAMILY-HISTORY-OF-DISABILITIES

    ICD-10-CM Code For Family History Of Certain Disabilities And Chronic Diseases: Group Overview

    Z83-FAMILY-HISTORY-OF-OTHER-SPECIFIC-DISORDERS

    ICD-10-CM Code For Family History Of Other Specific Disorders: Group Overview

    Z84-FAMILY-HISTORY-OTHER-CONDITIONS

    ICD-10-CM Code For Family History Of Other Conditions: Group Overview

    Z85-PERSONAL-HISTORY-OF-MALIGNANT-NEOPLASM

    ICD-10-CM Code For Personal History Of Malignant Neoplasm: Group Overview

    Z86-PERSONAL-HISTORY-OF-CERTAIN-DISEASES

    ICD-10-CM Code For Personal History Of Certain Other Diseases: Group Overview

    Z87-PERSONAL-HISTORY-OF-OTHER-DISEASES

    ICD-10-CM Code For Personal History Of Other Diseases And Conditions: Group Overview

    Showing 1–10 of 22

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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