ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.1 > S56.12 > S56.128 S56.128 Laceration of flexor muscle, fascia and tendon of left little finger at forearm level Non-Billable/Non-Specific Codes S56.128A..., initial encounterS56.128D..., subsequent encounterS56.128S..., sequela