ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.8 > S66.89 > S66.891 S66.891 Other injury of other specified muscles, fascia and tendons at wrist and hand level, right hand Non-Billable/Non-Specific Codes S66.891A..., initial encounterS66.891D..., subsequent encounterS66.891S..., sequela