N63.25 – Unspecified lump in the left breast, overlapping quadrants

ICD-10-CM 2027 diagnosis code · Disorders of breast

Billable code

ICD-10-CM code N63.25

Code: N63.25 (claims format: N6325)
Description: Unspecified lump in the left breast, overlapping quadrants
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 14. Diseases of the genitourinary system (N00-N99)
Block: N60-N65 Disorders of breast
Parent codes: N63 › N63.2

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

N63 – Unspecified lump in breast

Applicable to:

Nodule(s) NOS in breast

Block N60-N65

Excludes1 (not coded here):

disorders of breast associated with childbirth (O91-O92)

Index terms for N63.25

Entries in the ICD-10-CM alphabetic index that lead to this code:

Lump, breast, left, overlapping quadrants

Related codes in N63.2

Frequently asked questions

What is ICD-10 code N63.25?

N63.25 is the ICD-10-CM code for unspecified lump in the left breast, overlapping quadrants, in the block N60-N65 (Disorders of breast).

Is N63.25 a billable code?

Yes. N63.25 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does N63.25 belong to?

It belongs to category N63 – Unspecified lump in breast.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.