ICD-10 Code: Z91.138 – Patient’s unintentional underdosing of medication regimen for other reason

ICD-10 code Z91.138 corresponds to Patient’s unintentional underdosing of medication regimen for other reason. This code is classified under the chapter Z91 Personal risk factors, not elsewhere classified, which is part of the Z77-Z99: Persons with potential health hazards related to family and personal history and certain conditions influencing health status category.

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