Z79 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Long term (current) drug therapy.
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Long term (current) drug use for prophylactic purposes
Any therapeutic drug level monitoring (Z51.81)
Drug abuse and dependence (F11-F19)
Drug use complicating pregnancy, childbirth, and the puerperium (O99.32-)
Long term (current) use of anticoagulants and antithrombotics/antiplatelets
Long term (current) use of non-steroidal anti-inflammatories (NSAID)
Long term (current) use of antibiotics
Long term (current) use of hormonal contraceptives
Long term (current) use of insulin
Long term (current) use of steroids
Long term (current) use of immunomodulators and immunosuppressants
Other long term (current) drug therapy
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