ICD-10-CM T43.636: Underdosing of methylphenidate

ICD-10-CM Diagnosis Code (2025)

Official Description for T43.636

Underdosing of methylphenidate

Parent Code (Less Specific):

About ICD-10-CM Code T43.636 (Underdosing of methylphenidate)

ICD-10-CM code T43.636 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 T43.636 became effective on October 1, 2024.

This page provides detailed information about T43.636 - Underdosing of methylphenidate. 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 Underdosing of methylphenidate.