ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.5 S56.5 Injury of other extensor muscle, fascia and tendon at forearm level Non-Billable/Non-Specific Codes S56.50Unspecified injury of other extensor muscle, fascia and tendon at forearm levelS56.501Unspecified injury of other extensor muscle, fascia and tendon at forearm level, right armS56.501A..., initial encounterS56.501D..., subsequent encounterS56.501S..., sequelaS56.502Unspecified injury of other extensor muscle, fascia and tendon at forearm level, left armS56.502A..., initial encounterS56.502D..., subsequent encounterS56.502S..., sequelaS56.509Unspecified injury of other extensor muscle, fascia and tendon at forearm level, unspecified armS56.509A..., initial encounterS56.509D..., subsequent encounterS56.509S..., sequelaS56.51Strain of other extensor muscle, fascia and tendon at forearm levelS56.511Strain of other extensor muscle, fascia and tendon at forearm level, right armS56.511A..., initial encounterS56.511D..., subsequent encounterS56.511S..., sequelaS56.512Strain of other extensor muscle, fascia and tendon at forearm level, left armS56.512A..., initial encounterS56.512D..., subsequent encounterS56.512S..., sequelaS56.519Strain of other extensor muscle, fascia and tendon at forearm level, unspecified armS56.519A..., initial encounterS56.519D..., subsequent encounterS56.519S..., sequelaS56.52Laceration of other extensor muscle, fascia and tendon at forearm levelS56.521Laceration of other extensor muscle, fascia and tendon at forearm level, right armS56.521A..., initial encounterS56.521D..., subsequent encounterS56.521S..., sequelaS56.522Laceration of other extensor muscle, fascia and tendon at forearm level, left armS56.522A..., initial encounterS56.522D..., subsequent encounterS56.522S..., sequelaS56.529Laceration of other extensor muscle, fascia and tendon at forearm level, unspecified armS56.529A..., initial encounterS56.529D..., subsequent encounterS56.529S..., sequelaS56.59Other injury of other extensor muscle, fascia and tendon at forearm levelS56.591Other injury of other extensor muscle, fascia and tendon at forearm level, right armS56.591A..., initial encounterS56.591D..., subsequent encounterS56.591S..., sequelaS56.592Other injury of other extensor muscle, fascia and tendon at forearm level, left armS56.592A..., initial encounterS56.592D..., subsequent encounterS56.592S..., sequelaS56.599Other injury of other extensor muscle, fascia and tendon at forearm level, unspecified armS56.599A..., initial encounterS56.599D..., subsequent encounterS56.599S..., sequela