S56Injury of muscle, fascia and tendon at forearm level

S56 is the ICD-10-CM diagnosis code for injury of muscle, fascia and tendon at forearm level. It belongs to 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 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: S56.0 (level), S56.1 (level), S56.2 (level), S56.3 (level), S56.4 (level), S56.5 (level), S56.8 (level) and S56.9 (level).

The conditions in its Excludes2 note aren't part of S56, but may be coded alongside it if the patient has both: injury of muscle, fascia and tendon at or below wrist (S66.-) and sprain of joints and ligaments of elbow (S53.4-).

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