S90.51Non-Billable (Header)Abrasion of ankleChild CodesS90.511Abrasion, right ankleS90.512Abrasion, left ankleS90.519Abrasion, unspecified ankleCode Hierarchy└S90Superficial injury of ankle, foot and toes└S90.5Other superficial injuries of ankle└S90.51Abrasion of ankle└S90.51Abrasion of ankle