Z79 Long term (current) drug therapy

The ICD-10-CM code for Long term (current) drug therapy is Z79 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter

21: Factors influencing health status and contact with health services (Z00-Z99)

Section

Z77-Z99: Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)

Category Z79

41 codes (32 billable)

FY2026 Status

Stable since FY2024

Official Coding Guidelines

Use of insulin/oral/injectable drugs when type not indicated

3) Diabetes mellitus and the use of insulin, oral hypoglycemics, and injectable non-insulin drugs If the documentation in a medical record does not indicate the type of diabetes but does indicate that the patient uses insulin, code E11-, Type 2 diabetes mellitus, should be assigned. Additional code(s) should be assigned from category Z79 to identify the long-term (current) use of insulin, oral hypoglycemic drugs, or injectable non-insulin antidiabetic, as follows:

Secondary diabetes—assign Z79 for long-term drug use

(a) Secondary diabetes mellitus and the use of insulin, oral hypoglycemic drugs, or injectable non-insulin drugs For patients with secondary diabetes mellitus who routinely use insulin, oral hypoglycemic drugs, or injectable non-insulin drugs, additional code(s) from category Z79 should be assigned to identify the long-term (current) use of insulin, oral hypoglycemic drugs, or non-injectable non-insulin drugs as follows:

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool

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Reference Z79 with the canonical source and edition:

Z79 — Long term (current) drug therapy. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/Z79

Canonical URL: https://icd10codingpro.com/codes/Z79