ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.1 > S66.12 > S66.120 S66.120 Laceration of flexor muscle, fascia and tendon of right index finger at wrist and hand level Non-Billable/Non-Specific Codes S66.120A..., initial encounterS66.120D..., subsequent encounterS66.120S..., sequela