N60: Benign mammary dysplasia

Codes under N60 (Benign mammary dysplasia). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
N60.0	Solitary cyst of breast	—
N60.01	Solitary cyst of right breast	✓
N60.1	Diffuse cystic mastopathy	—
N60.02	Solitary cyst of left breast	✓
N60.2	Fibroadenosis of breast	—
N60.3	Fibrosclerosis of breast	—
N60.4	Mammary duct ectasia	—
N60.8	Other benign mammary dysplasias	—
N60.09	Solitary cyst of unspecified breast	✓
N60.9	Unspecified benign mammary dysplasia	—
N60.11	Diffuse cystic mastopathy of right breast	✓
N60.12	Diffuse cystic mastopathy of left breast	✓
N60.19	Diffuse cystic mastopathy of unspecified breast	✓
N60.21	Fibroadenosis of right breast	✓
N60.22	Fibroadenosis of left breast	✓
N60.29	Fibroadenosis of unspecified breast	✓
N60.31	Fibrosclerosis of right breast	✓
N60.32	Fibrosclerosis of left breast	✓
N60.39	Fibrosclerosis of unspecified breast	✓
N60.41	Mammary duct ectasia of right breast	✓
N60.42	Mammary duct ectasia of left breast	✓
N60.49	Mammary duct ectasia of unspecified breast	✓
N60.81	Other benign mammary dysplasias of right breast	✓
N60.82	Other benign mammary dysplasias of left breast	✓
N60.89	Other benign mammary dysplasias of unspecified breast	✓
N60.91	Unspecified benign mammary dysplasia of right breast	✓
N60.92	Unspecified benign mammary dysplasia of left breast	✓
N60.99	Unspecified benign mammary dysplasia of unspecified breast	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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