ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.5 > S66.52 > S66.520 S66.520 Laceration of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level Non-Billable/Non-Specific Codes S66.520A..., initial encounterS66.520D..., subsequent encounterS66.520S..., sequela