ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.3 > S56.32 > S56.322 S56.322 Laceration of extensor or abductor muscles, fascia and tendons of left thumb at forearm level Non-Billable/Non-Specific Codes S56.322A..., initial encounterS56.322D..., subsequent encounterS56.322S..., sequela