ICD-10-CM > N00-N99 > N60-N65 > N62 N62 Hypertrophy of breast Billable/Specific Copy Code Copy Description Applicable To GynecomastiaHypertrophy of breast NOSMassive pubertal hypertrophy of breast Type 1 Excludes breast engorgement of newborn (P83.4)disproportion of reconstructed breast (N65.1)