Z79.62
Long term (current) use of immunosuppressant
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 4 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 filed at null
No alphabetic index entry points at this code.
Alongside this code 5 same parent — Z79.6
Z79.60 Lng trm (crnt) use unsp immunomodulator & immunosuppressant Z79.61 Long term (current) use of immunomodulator Z79.63 Long term (current) use of chemotherapeutic agent category Z79.64 Long term (current) use of myelosuppressive agent Z79.69 Lng trm (crnt) use of immunomodulator & immunosuppressant
Subordinate codes 5
Z79.620 Long term (current) use of immunosuppressive biologic Z79.621 Long term (current) use of calcineurin inhibitor Z79.622 Long term (current) use of Janus kinase inhibitor Z79.623 Long term (crnt) use of mammalian target rapamycin inhibitor Z79.624 Long term (current) use of inhibtr of nucleotide synthesis
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.