ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.0 > S56.09 > S56.092 S56.092 Other injury of flexor muscle, fascia and tendon of left thumb at forearm level Non-Billable/Non-Specific Codes S56.092A..., initial encounterS56.092D..., subsequent encounterS56.092S..., sequela