ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.5 > S66.51 > S66.517 S66.517 Strain of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level Non-Billable/Non-Specific Codes S66.517A..., initial encounterS66.517D..., subsequent encounterS66.517S..., sequela