ICD-10-CM > S00-T88 > S40-S49 > S46 > S46.8 > S46.81 > S46.812 S46.812 Strain of other muscles, fascia and tendons at shoulder and upper arm level, left arm Non-Billable/Non-Specific Codes S46.812A..., initial encounterS46.812D..., subsequent encounterS46.812S..., sequela