ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.0 > S56.02 > S56.029 S56.029 Laceration of flexor muscle, fascia and tendon of unspecified thumb at forearm level Non-Billable/Non-Specific Codes S56.029A..., initial encounterS56.029D..., subsequent encounterS56.029S..., sequela