ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.1 > S66.11 > S66.119 S66.119 Strain of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level Non-Billable/Non-Specific Codes S66.119A..., initial encounterS66.119D..., subsequent encounterS66.119S..., sequela