Z79.4
Long term (current) use of insulin
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 5 never code together
Instructional notes 6
Z79code
Includes
- long term (current) drug use for prophylactic purposes
Code also
- any therapeutic drug level monitoring (Z51.81)Z51.81
Z00-Z99chapter
Notes
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:Z00-Z99A00-Y89
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
Index entries leading here 2
Alongside this code 7 same parent — Z79
Z79.0 Long term (current) use of antocoag/antithrom/angiplate category Z79.1 Long term (current) use of non-steroidal non-inflam (NSAID) Z79.2 Long term (current) use of antibiotics Z79.3 Long term (current) use of hormonal contraceptives Z79.5 Long term (current) use of steroids category Z79.6 Long term (crnt) use of immunomodulator & immunosuppressant category Z79.8 Other long term (current) drug therapy category
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.