ICD-10-CM > S00-T88 > S50-S59 > S50 > S50.8 > S50.85 S50.85 Superficial foreign body of forearm Non-Billable/Non-Specific Applicable To Splinter in the forearm Codes S50.851Superficial foreign body of right forearmS50.851A..., initial encounterS50.851D..., subsequent encounterS50.851S..., sequelaS50.852Superficial foreign body of left forearmS50.852A..., initial encounterS50.852D..., subsequent encounterS50.852S..., sequelaS50.859Superficial foreign body of unspecified forearmS50.859A..., initial encounterS50.859D..., subsequent encounterS50.859S..., sequela