ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.5 > S66.59 > S66.597 S66.597 Other injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level Non-Billable/Non-Specific Codes S66.597A..., initial encounterS66.597D..., subsequent encounterS66.597S..., sequela