N60 — Benign mammary dysplasia
Is N60 billable?
No — N60 is a non-billable header code. N60 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 21 billable codes beneath N60.
Billable codes under this header
- N60.01Solitary cyst of right breast
- N60.02Solitary cyst of left breast
- N60.09Solitary cyst of unspecified breast
- N60.11Diffuse cystic mastopathy of right breast
- N60.12Diffuse cystic mastopathy of left breast
- N60.19Diffuse cystic mastopathy of unspecified breast
- N60.21Fibroadenosis of right breast
- N60.22Fibroadenosis of left breast
- N60.29Fibroadenosis of unspecified breast
- N60.31Fibrosclerosis of right breast
- N60.32Fibrosclerosis of left breast
- N60.39Fibrosclerosis of unspecified breast
- N60.41Mammary duct ectasia of right breast
- N60.42Mammary duct ectasia of left breast
- N60.49Mammary duct ectasia of unspecified breast
- N60.81Other benign mammary dysplasias of right breast
- N60.82Other benign mammary dysplasias of left breast
- N60.89Other benign mammary dysplasias of unspecified breast
- N60.91Unspecified benign mammary dysplasia of right breast
- N60.92Unspecified benign mammary dysplasia of left breast
- N60.99Unspecified benign mammary dysplasia of unspecified breast
N60 at a glance
| Code | N60 |
|---|---|
| Description | Benign mammary dysplasia |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Includes
Conditions classified to N60.
- fibrocystic mastopathy
Excludes1 — never code together — inherited from N60-N65
The conditions below can never be reported together with N60 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- disorders of breast associated with childbirth (O91-O92)
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N60, but a patient may have both at the same time. When documentation supports it, N60 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
What codes fall under N60? (7)
- N60.0Solitary cyst of breastnot billable
- N60.1Diffuse cystic mastopathynot billable
- N60.2Fibroadenosis of breastnot billable
- N60.3Fibrosclerosis of breastnot billable
- N60.4Mammary duct ectasianot billable
- N60.8Other benign mammary dysplasiasnot billable
- N60.9Unspecified benign mammary dysplasianot billable
How long has N60 existed?
N60 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with N60?
ICD-10-CM declares these codes mutually exclusive with N60 — exactly one of each pair can be correct for a given encounter.