ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.1 > S56.10 > S56.106 S56.106 Unspecified injury of flexor muscle, fascia and tendon of left ring finger at forearm level Non-Billable/Non-Specific Codes S56.106A..., initial encounterS56.106D..., subsequent encounterS56.106S..., sequela