ICD-10-CM S66.019: Strain of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level

Parent Code (Less Specific):

About ICD-10-CM Code S66.019 (Strain of long flexor muscle)

ICD-10-CM code S66.019 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 S66.019 became effective on October 1, 2024.

This page provides detailed information about S66.019 - Strain of long flexor muscle, fascia and tendon of unspecified 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 Strain of long flexor muscle related to fascia and tendon of unspecified thumb at wrist and hand level.