ICD-10-CM > S00-T88 > S50-S59 > S56 > S56.8 > S56.81 > S56.811 S56.811 Strain of other muscles, fascia and tendons at forearm level, right arm Non-Billable/Non-Specific Codes S56.811A..., initial encounterS56.811D..., subsequent encounterS56.811S..., sequela