Disorders of breast (N60-N65)
N60Benign mammary dysplasia
Includes: fibrocystic mastopathy
N60.0Solitary cyst of breast
› Cyst of breast
N60.01Solitary cyst of right breast
N60.02Solitary cyst of left breast
N60.09Solitary cyst of unspecified breast
N60.1Diffuse cystic mastopathy
› Cystic breast
› Fibrocystic disease of breast
Excludes 1: diffuse cystic mastopathy with epithelial proliferation (N60.3-)
N60.11Diffuse cystic mastopathy of right breast
N60.12Diffuse cystic mastopathy of left breast
N60.19Diffuse cystic mastopathy of unspecified breast
N60.2Fibroadenosis of breast
› Adenofibrosis of breast
Excludes 2: fibroadenoma of breast (D24.-)
N60.21Fibroadenosis of right breast
N60.22Fibroadenosis of left breast
N60.29Fibroadenosis of unspecified breast
N60.3Fibrosclerosis of breast
› Cystic mastopathy with epithelial proliferation
N60.31Fibrosclerosis of right breast
N60.32Fibrosclerosis of left breast
N60.39Fibrosclerosis of unspecified breast
N60.4Mammary duct ectasia
N60.41Mammary duct ectasia of right breast
N60.42Mammary duct ectasia of left breast
N60.49Mammary duct ectasia of unspecified breast
N60.8Other benign mammary dysplasias
N60.81Other benign mammary dysplasias of right breast
N60.82Other benign mammary dysplasias of left breast
N60.89Other benign mammary dysplasias of unspecified breast
N60.9Unspecified benign mammary dysplasia
N60.91Unspecified benign mammary dysplasia of right breast
N60.92Unspecified benign mammary dysplasia of left breast
N60.99Unspecified benign mammary dysplasia of unspecified breast
N61Inflammatory disorders of breast
Excludes 1: inflammatory carcinoma of breast (C50.9)
› inflammatory disorder of breast associated with childbirth (O91.-)
› neonatal infective mastitis (P39.0)
› thrombophlebitis of breast [Mondor's disease] (I80.8)
N61.0Mastitis without abscess
› Infective mastitis (acute) (nonpuerperal) (subacute)
› Mastitis (acute) (nonpuerperal) (subacute) NOS
› Cellulitis (acute) (nonpuerperal) (subacute) of breast NOS
› Cellulitis (acute) (nonpuerperal) (subacute) of nipple NOS
N61.1Abscess of the breast and nipple
› Abscess (acute) (chronic) (nonpuerperal) of areola
› Abscess (acute) (chronic) (nonpuerperal) of breast
› Carbuncle of breast
› Mastitis with abscess
N61.2Granulomatous mastitis
N61.20Granulomatous mastitis, unspecified breast
N61.21Granulomatous mastitis, right breast
N61.22Granulomatous mastitis, left breast
N61.23Granulomatous mastitis, bilateral breast
N62Hypertrophy of breast
› Gynecomastia
› Hypertrophy of breast NOS
› Massive pubertal hypertrophy of breast
Excludes 1: breast engorgement of newborn (P83.4)
› disproportion of reconstructed breast (N65.1)
N63Unspecified lump in breast
› Nodule(s) NOS in breast
N63.0Unspecified lump in unspecified breast
N63.1Unspecified lump in the right breast
N63.10Unspecified lump in the right breast, unspecified quadrant
N63.11Unspecified lump in the right breast, upper outer quadrant
N63.12Unspecified lump in the right breast, upper inner quadrant
N63.13Unspecified lump in the right breast, lower outer quadrant
N63.14Unspecified lump in the right breast, lower inner quadrant
N63.15Unspecified lump in the right breast, overlapping quadrants
N63.2Unspecified lump in the left breast
N63.20Unspecified lump in the left breast, unspecified quadrant
N63.21Unspecified lump in the left breast, upper outer quadrant
N63.22Unspecified lump in the left breast, upper inner quadrant
N63.23Unspecified lump in the left breast, lower outer quadrant
N63.24Unspecified lump in the left breast, lower inner quadrant
N63.25Unspecified lump in the left breast, overlapping quadrants
N63.3Unspecified lump in axillary tail
N63.31Unspecified lump in axillary tail of the right breast
N63.32Unspecified lump in axillary tail of the left breast
N63.4Unspecified lump in breast, subareolar
N63.41Unspecified lump in right breast, subareolar
N63.42Unspecified lump in left breast, subareolar
N64Other disorders of breast
Excludes 2: mechanical complication of breast prosthesis and implant (T85.4-)
N64.0Fissure and fistula of nipple
N64.1Fat necrosis of breast
› Fat necrosis (segmental) of breast
Code First: breast necrosis due to breast graft (T85.898)
N64.2Atrophy of breast
N64.3Galactorrhea not associated with childbirth
N64.4Mastodynia
N64.5Other signs and symptoms in breast
Excludes 2: abnormal findings on diagnostic imaging of breast (R92.-)
N64.51Induration of breast
N64.52Nipple discharge
Excludes 1: abnormal findings in nipple discharge (R89.-)
N64.53Retraction of nipple
N64.59Other signs and symptoms in breast
N64.8Other specified disorders of breast
N64.81Ptosis of breast
Excludes 1: ptosis of native breast in relation to reconstructed breast (N65.1)
N64.82Hypoplasia of breast
› Micromastia
Excludes 1: congenital absence of breast (Q83.0)
› hypoplasia of native breast in relation to reconstructed breast (N65.1)
N64.89Other specified disorders of breast
› Galactocele
› Subinvolution of breast (postlactational)
N64.9Disorder of breast, unspecified
N65Deformity and disproportion of reconstructed breast
N65.0Deformity of reconstructed breast
› Contour irregularity in reconstructed breast
› Excess tissue in reconstructed breast
› Misshapen reconstructed breast
N65.1Disproportion of reconstructed breast
› Breast asymmetry between native breast and reconstructed breast
› Disproportion between native breast and reconstructed breast