S56.5 - Injury of other extensor muscle, fascia and tendon at forearm level
S56.51 - Strain of other extensor muscle, fascia and tendon at forearm level
S56.511 - Strain of other extensor muscle, fascia and tendon at forearm level, right arm
S56.512 - Strain of other extensor muscle, fascia and tendon at forearm level, left arm
S56.519 - Strain of other extensor muscle, fascia and tendon at forearm level, unspecified arm