ICD-10-CM
ICD-10 code for Breast lump: N63.0
The closest CDC title for "Breast lump" is N63.0, Unspecified lump in unspecified breast. N63.0 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under N63, then other CDC titles that name unspecified lump in unspecified breast
A header groups codes and is not billed. A billable code is one you can report.
- N63Unspecified lump in breastHeader
- N63.0Unspecified lump in unspecified breastBillable
- N63.1Unspecified lump in the right breastHeader
- N63.10Unspecified lump in the right breast, unspecified quadrantBillable
- N63.11Unspecified lump in the right breast, upper outer quadrantBillable
- N63.12Unspecified lump in the right breast, upper inner quadrantBillable
- N63.13Unspecified lump in the right breast, lower outer quadrantBillable
- N63.14Unspecified lump in the right breast, lower inner quadrantBillable
- N63.15Unspecified lump in the right breast, overlapping quadrantsBillable
- N63.2Unspecified lump in the left breastHeader
- N63.20Unspecified lump in the left breast, unspecified quadrantBillable
- N63.21Unspecified lump in the left breast, upper outer quadrantBillable
- N63.22Unspecified lump in the left breast, upper inner quadrantBillable
- N63.23Unspecified lump in the left breast, lower outer quadrantBillable
- N63.24Unspecified lump in the left breast, lower inner quadrantBillable
- N63.25Unspecified lump in the left breast, overlapping quadrantsBillable
- N63.3Unspecified lump in axillary tailHeader
- N63.31Unspecified lump in axillary tail of the right breastBillable
- N63.32Unspecified lump in axillary tail of the left breastBillable
- N63.4Unspecified lump in breast, subareolarHeader
- N63.41Unspecified lump in right breast, subareolarBillable
- N63.42Unspecified lump in left breast, subareolarBillable
Related conditions
Related pages
- N63.0 code detailsNotes, nearby codes, CMS-HCC group
- Category N63Every code under it
- Chapter 14Diseases of the genitourinary system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Breast lump?
The closest CDC title for "Breast lump" is N63.0, Unspecified lump in unspecified breast. N63.0 is a billable code.
Is N63.0 billable?
Yes. N63.0 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What chapter is N63.0 in?
Chapter 14. Diseases of the genitourinary system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.