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N63.31

Billable

Unspecified lump in axillary tail of the right breast

N63.31 is the ICD-10-CM code for Unspecified lump in axillary tail of the right breast. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
N00-N99
Parent
N63.3
Edition
FY2026

N00-N99 Diseases of the genitourinary system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code N63.31?
N63.31 is the ICD-10-CM code for "Unspecified lump in axillary tail of the right breast". It falls under N00-N99 Diseases of the genitourinary system.
Is N63.31 a billable code?
Yes — N63.31 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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