ICD-10-CM > N00-N99 > N60-N65 > N63 > N63.4 N63.4 Unspecified lump in breast, subareolar Non-Billable/Non-Specific Codes N63.41Unspecified lump in right breast, subareolarN63.42Unspecified lump in left breast, subareolar
ICD-10 Fast ICD-10 Fast