ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.5 > S66.51 > S66.515 S66.515 Strain of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level Non-Billable/Non-Specific Codes S66.515A..., initial encounterS66.515D..., subsequent encounterS66.515S..., sequela