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  6. 2026 ICD-10-CM Code Z79

2026 ICD-10-CM Diagnosis Code Z79

Long term (current) drug therapy

ICD-10-CM Code:
Z79
ICD-10 Code for:
Long term (current) drug therapy
Is Billable?
Not Valid for Submission
Code Navigator:

Z79 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity from the list below for a diagnosis of long term (current) drug therapy. The code is not specific and is NOT valid for the year 2026 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Long term (current) drug therapy

Non-specific codes like Z79 require more digits to indicate the appropriate level of specificity. Consider using any of the following billable codes with a higher level of specificity when coding for long term (current) drug therapy:

  • Z79.0 for Long term (current) use of anticoagulants and antithrombotics/antiplatelets

  • Use Z79.01 for Long term (current) use of anticoagulants

  • Use Z79.02 for Long term (current) use of antithrombotics/antiplatelets

  • Use Z79.1 for Long term (current) use of non-steroidal anti-inflammatories (NSAID)

  • Use Z79.2 for Long term (current) use of antibiotics

  • Use Z79.3 for Long term (current) use of hormonal contraceptives

  • Use Z79.4 for Long term (current) use of insulin

  • Z79.5 for Long term (current) use of steroids

  • Use Z79.51 for Long term (current) use of inhaled steroids

  • Use Z79.52 for Long term (current) use of systemic steroids

  • Z79.6 for Long term (current) use of immunomodulators and immunosuppressants

  • Use Z79.60 for Long term (current) use of unspecified immunomodulators and immunosuppressants

  • Use Z79.61 for Long term (current) use of immunomodulator

  • Z79.62 for Long term (current) use of immunosuppressant

  • Z79.63 for Long term (current) use of chemotherapeutic agent

  • Use Z79.64 for Long term (current) use of myelosuppressive agent

  • Use Z79.69 for Long term (current) use of other immunomodulators and immunosuppressants

  • Z79.8 for Other long term (current) drug therapy

  • Z79.81 for Long term (current) use of agents affecting estrogen receptors and estrogen levels

  • Use Z79.82 for Long term (current) use of aspirin

  • Use Z79.83 for Long term (current) use of bisphosphonates

  • Use Z79.84 for Long term (current) use of oral hypoglycemic drugs

  • Use Z79.85 for Long-term (current) use of injectable non-insulin antidiabetic drugs

  • Z79.89 for Other long term (current) drug therapy

Code Classification

  • Factors influencing health status and contact with health services
    Z00–Z99
    • Persons with potential health hazards related to family and personal history and certain conditions influencing health status
      Z77-Z99
      • Long term drug therapy (Z79)
        current

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Includes

Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • long term (current) drug use for prophylactic purposes

Code Also

Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • any therapeutic drug level monitoring Z51.81

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • drug abuse and dependence F11 F19
  • drug use complicating pregnancy, childbirth, and the puerperium O99.32

Code History

  • FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026
  • FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025
  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.