ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.9 > S66.99 > S66.992 S66.992 Other injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand Non-Billable/Non-Specific Codes S66.992A..., initial encounterS66.992D..., subsequent encounterS66.992S..., sequela