N63.2 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Unspecified lump in the left breast.
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Unspecified lump in the left breast, unspecified quadrant
Unspecified lump in the left breast, upper outer quadrant
Unspecified lump in the left breast, upper inner quadrant
Unspecified lump in the left breast, lower outer quadrant
Unspecified lump in the left breast, lower inner quadrant
Unspecified lump in the left breast, overlapping quadrants
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