N63
Unspecified lump in breast
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
N63 is a non-billable ICD-10-CM code category for unspecified lump in breast. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are N63.0 Unspecified lump in unspecified breast, N63.1 Unspecified lump in the right breast, N63.2 Unspecified lump in the left breast, N63.3 Unspecified lump in axillary tail and 1 more. Its coding notes include 1 Excludes1 entry and 8 Excludes2 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Also from chapter/block level (1 note)
Inherited from N60–N65 Disorders of breast
- disorders of breast associated with childbirth (O91-O92)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (8 notes)
Inherited from Chapter 14 Diseases of the genitourinary system
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Inclusion terms
Conditions classified to this code.
This code
- Nodule(s) NOS in breast