N63.2
⚠ Non-billable (Header)Unspecified lump in the left 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 N63.2
Child Codes (6)
N63.20Unspecified lump in the left breast, unspecified quadrantN63.21Unspecified lump in the left breast, upper outer quadrantN63.22Unspecified lump in the left breast, upper inner quadrantN63.23Unspecified lump in the left breast, lower outer quadrantN63.24Unspecified lump in the left breast, lower inner quadrantN63.25Unspecified lump in the left breast, overlapping quadrants
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CodeN63.2
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)