ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.5 > S56.50 > S56.501 S56.501 Unspecified injury of other extensor muscle, fascia and tendon at forearm level, right arm Non-Billable/Non-Specific Codes S56.501A..., initial encounterS56.501D..., subsequent encounterS56.501S..., sequela