S56.413Strain of extensor muscle, fascia and tendon of right middle finger at forearm level

S56.413 is the ICD-10-CM diagnosis code for strain of extensor muscle, fascia and tendon of right middle finger at forearm level. It belongs to category S56 (injury of muscle, fascia and tendon at forearm level), block S50-S59 (injuries to the elbow and forearm) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within S56.41 (strain of extensor muscle, fascia and tendon of other and unspecified finger at forearm level), S56.413 is specifically for strain of extensor muscle, fascia and tendon of right middle finger at forearm level. Related codes cover right index finger at forearm level (S56.411), left index finger at forearm level (S56.412), left middle finger at forearm level (S56.414), right ring finger at forearm level (S56.415), left ring finger at forearm level (S56.416), right little finger at forearm level (S56.417), left little finger at forearm level (S56.418) and finger, unspecified finger at forearm level (S56.419).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.