ICD-10-CM > S00-T88 > S40-S49 > S46 > S46.8 > S46.80 > S46.809 S46.809 Unspecified injury of other muscles, fascia and tendons at shoulder and upper arm level, unspecified arm Non-Billable/Non-Specific Codes S46.809A..., initial encounterS46.809D..., subsequent encounterS46.809S..., sequela