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ICD-10-CM 2027 diagnosis code

N60.3Fibrosclerosis of breast

Not billable — use a more specific code

N60.3 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About N60.3

N60.3 is the ICD-10-CM diagnosis code for fibrosclerosis of breast. It belongs to category N60 (benign mammary dysplasia), block N60-N65 (disorders of breast) and chapter 14 (diseases of the genitourinary system). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within N60 (benign mammary dysplasia), N60.3 is specifically for fibrosclerosis of breast. Related codes cover Solitary cyst of breast (N60.0), diffuse cystic mastopathy (N60.1), Fibroadenosis of breast (N60.2), mammary duct ectasia (N60.4), other benign mammary dysplasias (N60.8) and unspecified benign mammary dysplasia (N60.9).

To report this condition, pick the subcode that matches the documentation: N60.31 (breast), N60.32 (breast) and N60.39 (breast).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under N60.3

Coding notes

Applicable toConditions and synonyms classified to this code
  • Cystic mastopathy with epithelial proliferation

Notes that apply from higher levels

Instructions written at a parent level also apply to N60.3.

› From N60 Benign mammary dysplasia
Includes
  • fibrocystic mastopathy

Broader instructions also apply from N60-N65 Disorders of breast and Chapter 14: Diseases of the genitourinary system.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to N60.3.

Codes whose notes reference N60.3

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about N60.3

Is N60.3 billable?

No. N60.3 is a header code. Report one of its more specific subcodes instead.