ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.2 > S56.22 > S56.221 S56.221 Laceration of other flexor muscle, fascia and tendon at forearm level, right arm Non-Billable/Non-Specific Codes S56.221A..., initial encounterS56.221D..., subsequent encounterS56.221S..., sequela