ICD-10-CM S66.402: Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level

Parent Code (Less Specific):

About ICD-10-CM Code S66.402 (Unspecified injury of intrinsic muscle)

ICD-10-CM code S66.402 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 S66.402 became effective on October 1, 2024.

This page provides detailed information about S66.402 - Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level. 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 Unspecified injury of intrinsic muscle related to fascia and tendon of left thumb at wrist and hand level.