ICD-10-CM > S00-T88 > S50-S59 > S50 > S50.8 > S50.81 S50.81 Abrasion of forearm Non-Billable/Non-Specific Codes S50.811Abrasion of right forearmS50.811A..., initial encounterS50.811D..., subsequent encounterS50.811S..., sequelaS50.812Abrasion of left forearmS50.812A..., initial encounterS50.812D..., subsequent encounterS50.812S..., sequelaS50.819Abrasion of unspecified forearmS50.819A..., initial encounterS50.819D..., subsequent encounterS50.819S..., sequela