Chapter XIV

Diseases of the genitourinary system
(N00-N99)

Disorders of breast
(N60-N64)


Excludes:	disorders of breast associated with childbirth ( O91-O92 )


N60		Benign mammary dysplasia
		Includes:	fibrocystic mastopathy
N60.0		Solitary cyst of breast
		Cyst of breast
N60.1		Diffuse cystic mastopathy
		Cystic breast
		Excludes:	with epithelial proliferation ( N60.3 )
N60.2		Fibroadenosis of breast
		Excludes:	fibroadenoma of breast ( D24 )
N60.3		Fibrosclerosis of breast
		Cystic mastopathy with epithelial proliferation
N60.4		Mammary duct ectasia
N60.8		Other benign mammary dysplasias
N60.9		Benign mammary dysplasia, unspecified


N61		Inflammatory disorders of breast
		Abscess (acute)(chronic)(nonpuerperal) of: · areola · breast Carbuncle of breast Mastitis (acute)(subacute)(nonpuerperal): · NOS · infective
		Excludes:	neonatal infective mastitis ( P39.0 )


N62		Hypertrophy of breast
		Gynaecomastia Hypertrophy of breast: · NOS · massive pubertal


N63		Unspecified lump in breast
		Nodule(s) NOS in breast


N64		Other disorders of breast
N64.0		Fissure and fistula of nipple
N64.1		Fat necrosis of breast
		Fat necrosis (segmental) of breast
N64.2		Atrophy of breast
N64.3		Galactorrhoea not associated with childbirth
N64.4		Mastodynia
N64.5		Other signs and symptoms in breast
		Induration of breast Nipple discharge Retraction of nipple
N64.8		Other specified disorders of breast
		Galactocele Subinvolution of breast (postlactational)
N64.9		Disorder of breast, unspecified