ICD-10-CM > S00-T88 > S50-S59 > S50 > S50.8 > S50.85 > S50.859 S50.859 Superficial foreign body of unspecified forearm Non-Billable/Non-Specific Codes S50.859A..., initial encounterS50.859D..., subsequent encounterS50.859S..., sequela