ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.8 > S66.80 > S66.801 S66.801 Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, right hand Non-Billable/Non-Specific Codes S66.801A..., initial encounterS66.801D..., subsequent encounterS66.801S..., sequela