N63.1
Non-billableUnspecified lump in the right breast
N63.1 is the ICD-10-CM code for Unspecified lump in the right breast. It is a non-billable category code — use a more specific child code such as N63.10 for billing.
N00-N99 Diseases of the genitourinary system
What this means — in plain language
MedlinePlus · NIHWhat are breast diseases? Breast diseases include various conditions and changes in your breast. Most women experience breast changes at some time. Your age, hormone levels, and medicines you take may cause lumps, bumps, and discharges of fluids that are not breast milk. Although many women fear cancer , most breast changes are benign, meaning they are not cancer. These breast changes are known as benign breast…
Read more about Breast Diseases at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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