ICD-10 Code: Z51.81 – Encounter for therapeutic drug level monitoring

ICD-10 code Z51.81 corresponds to Encounter for therapeutic drug level monitoring. This code is classified under the chapter Z51 Encounter for other aftercare and medical care, which is part of the Z40-Z53: Encounters for other specific health care category.

The parent chapter is Factors influencing health status and contact with health services.