ICD-10-CM > S00-T88 > S80-S89 > S81 > S81.0 > S81.04 S81.04 Puncture wound with foreign body of knee Non-Billable/Non-Specific Codes S81.041Puncture wound with foreign body, right kneeS81.041A..., initial encounterS81.041D..., subsequent encounterS81.041S..., sequelaS81.042Puncture wound with foreign body, left kneeS81.042A..., initial encounterS81.042D..., subsequent encounterS81.042S..., sequelaS81.049Puncture wound with foreign body, unspecified kneeS81.049A..., initial encounterS81.049D..., subsequent encounterS81.049S..., sequela