ICD-10-CM > S00-T88 > S60-S69 > S66 > S66.9 > S66.90 > S66.909 S66.909 Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand Non-Billable/Non-Specific Codes S66.909A..., initial encounterS66.909D..., subsequent encounterS66.909S..., sequela