ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.0 > S21.04 S21.04 Puncture wound with foreign body of breast Non-Billable/Non-Specific Codes S21.041Puncture wound with foreign body of right breastS21.041A..., initial encounterS21.041D..., subsequent encounterS21.041S..., sequelaS21.042Puncture wound with foreign body of left breastS21.042A..., initial encounterS21.042D..., subsequent encounterS21.042S..., sequelaS21.049Puncture wound with foreign body of unspecified breastS21.049A..., initial encounterS21.049D..., subsequent encounterS21.049S..., sequela