Z79

Z79: Long term (current) drug therapy

Non-billable headerICD-10-CM

Z79 is a non-billable header ICD-10-CM code for long term (current) drug therapy. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

drug abuse and dependence (F11-F19)
drug use complicating pregnancy, childbirth, and the puerperium (O99.32-)

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

any therapeutic drug level monitoring (Z51.81)

Includes

Conditions this code covers.

long term (current) drug use for prophylactic purposes

Other codes that can never be billed with Z79

Their own Excludes1 notes name this code, so the conflict is not listed above.

Z92.0Personal history of contraception
Z79.81Long term (current) use of agents affecting estrogen receptors and estrogen levels

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead Z79

8 child codes. Green means billable.