ICD-10-CM > S00-T88 > S20-S29 > S20 > S20.1 > S20.14 S20.14 External constriction of part of breast Non-Billable/Non-Specific Codes S20.141External constriction of part of breast, right breastS20.141A..., initial encounterS20.141D..., subsequent encounterS20.141S..., sequelaS20.142External constriction of part of breast, left breastS20.142A..., initial encounterS20.142D..., subsequent encounterS20.142S..., sequelaS20.149External constriction of part of breast, unspecified breastS20.149A..., initial encounterS20.149D..., subsequent encounterS20.149S..., sequela