N63.1
⚠ Non-billable (Header)Unspecified lump in the right breast
Diseases of the genitourinary system (N00-N99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
✅ No additional coding notes for N63.1
Child Codes (6)
N63.10Unspecified lump in the right breast, unspecified quadrantN63.11Unspecified lump in the right breast, upper outer quadrantN63.12Unspecified lump in the right breast, upper inner quadrantN63.13Unspecified lump in the right breast, lower outer quadrantN63.14Unspecified lump in the right breast, lower inner quadrantN63.15Unspecified lump in the right breast, overlapping quadrants
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CodeN63.1
BillableNo — Header code
ParentN63
CategoryDiseases of the genitourinary system (N00-N99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes6
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)