ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.4 > S56.42 > S56.428 S56.428 Laceration of extensor muscle, fascia and tendon of left little finger at forearm level Non-Billable/Non-Specific Codes S56.428A..., initial encounterS56.428D..., subsequent encounterS56.428S..., sequela