Z79.621
BillableLong term (current) use of calcineurin inhibitor
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A patient is currently taking calcineurin inhibitor medications on a long-term basis, typically to prevent organ rejection or treat autoimmune conditions.
Coding Tips
- •Common calcineurin inhibitors include tacrolimus and cyclosporine
- •Often used in transplant patients; code alongside transplant status codes when applicable
Code Hierarchy
└Z79Long term (current) drug therapy└Z79.6Long term (current) use of immunomodulators and immunosuppressants└Z79.62Long term (current) use of immunosuppressant└Z79.621Long term (current) use of calcineurin inhibitor
└Z79.621Long term (current) use of calcineurin inhibitor