ICD-10-CM M21.40: Flat foot [pes planus] (acquired), unspecified foot

Parent Code (Less Specific):

About ICD-10-CM Code M21.40 (Flat foot [pes planus])

ICD-10-CM code M21.40 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 M21.40 became effective on October 1, 2024.

This page provides detailed information about M21.40 - Flat foot [pes planus] (acquired), unspecified foot. 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 Flat foot [pes planus] related to unspecified foot.