ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.3 > S66.32 > S66.320 S66.320 Laceration of extensor muscle, fascia and tendon of right index finger at wrist and hand level Non-Billable/Non-Specific Codes S66.320A..., initial encounterS66.320D..., subsequent encounterS66.320S..., sequela