ICD-10-CM > S00-T88 > S80-S89 > S80 > S80.2 > S80.25 S80.25 Superficial foreign body of knee Non-Billable/Non-Specific Applicable To Splinter in the knee Codes S80.251Superficial foreign body, right kneeS80.251A..., initial encounterS80.251D..., subsequent encounterS80.251S..., sequelaS80.252Superficial foreign body, left kneeS80.252A..., initial encounterS80.252D..., subsequent encounterS80.252S..., sequelaS80.259Superficial foreign body, unspecified kneeS80.259A..., initial encounterS80.259D..., subsequent encounterS80.259S..., sequela