ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.0 > S56.02 > S56.022 S56.022 Laceration of flexor muscle, fascia and tendon of left thumb at forearm level Non-Billable/Non-Specific Codes S56.022A..., initial encounterS56.022D..., subsequent encounterS56.022S..., sequela