ICD-10-CM > S00-T88 > S40-S49 > S46 > S46.8 > S46.81 S46.81 Strain of other muscles, fascia and tendons at shoulder and upper arm level Non-Billable/Non-Specific Codes S46.811Strain of other muscles, fascia and tendons at shoulder and upper arm level, right armS46.811A..., initial encounterS46.811D..., subsequent encounterS46.811S..., sequelaS46.812Strain of other muscles, fascia and tendons at shoulder and upper arm level, left armS46.812A..., initial encounterS46.812D..., subsequent encounterS46.812S..., sequelaS46.819Strain of other muscles, fascia and tendons at shoulder and upper arm level, unspecified armS46.819A..., initial encounterS46.819D..., subsequent encounterS46.819S..., sequela