ICD-10-CM > S00-T88 > S80-S89 > S81 > S81.0 > S81.03 S81.03 Puncture wound without foreign body of knee Non-Billable/Non-Specific Codes S81.031Puncture wound without foreign body, right kneeS81.031A..., initial encounterS81.031D..., subsequent encounterS81.031S..., sequelaS81.032Puncture wound without foreign body, left kneeS81.032A..., initial encounterS81.032D..., subsequent encounterS81.032S..., sequelaS81.039Puncture wound without foreign body, unspecified kneeS81.039A..., initial encounterS81.039D..., subsequent encounterS81.039S..., sequela