ICD-10-CM > S00-T88 > S20-S29 > S20 > S20.1 > S20.10 S20.10 Unspecified superficial injuries of breast Non-Billable/Non-Specific Codes S20.101Unspecified superficial injuries of breast, right breastS20.101A..., initial encounterS20.101D..., subsequent encounterS20.101S..., sequelaS20.102Unspecified superficial injuries of breast, left breastS20.102A..., initial encounterS20.102D..., subsequent encounterS20.102S..., sequelaS20.109Unspecified superficial injuries of breast, unspecified breastS20.109A..., initial encounterS20.109D..., subsequent encounterS20.109S..., sequela