Z79.89 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of other long term (current) drug therapy. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.
Specific Coding for Other long term (current) drug therapy
Non-specific codes like Z79.89 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for other long term (current) drug therapy: