ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.2 > S56.22 > S56.229 S56.229 Laceration of other flexor muscle, fascia and tendon at forearm level, unspecified arm Non-Billable/Non-Specific Codes S56.229A..., initial encounterS56.229D..., subsequent encounterS56.229S..., sequela