ICD-10-CM Z79.621: Long term (current) use of calcineurin inhibitor

ICD-10-CM Diagnosis Code (2025)

Official Description for Z79.621

Long term (current) use of calcineurin inhibitor

Coding Notes & Guidelines for Z79.621

Inclusion Terms
  • Long term (current) use of cyclosporine
  • Long term (current) use of tacrolimus

Parent Code (Less Specific):

About ICD-10-CM Code Z79.621 (Long term)

ICD-10-CM code Z79.621 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM Z79.621 became effective on October 1, 2024.

This page provides detailed information about Z79.621 - Long term (current) use of calcineurin inhibitor. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Long term.