Unspecified lump in the left breast, upper outer quadrant
Billable / specific
N63.21 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.
Excludes1
Not coded here — never report together with this code.
Excludes2
Not included here — may be reported together when both conditions exist.
- certain conditions originating in the perinatal period (P04-P96) (from N63)
- certain infectious and parasitic diseases (A00-B99) (from N63)
- complications of pregnancy, childbirth and the puerperium (O00-O9A) (from N63)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from N63)
- endocrine, nutritional and metabolic diseases (E00-E88) (from N63)
- injury, poisoning and certain other consequences of external causes (S00-T88) (from N63)
- neoplasms (C00-D49) (from N63)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from N63)
Also known as
- Lump, breast, left, upper outer quadrant
Parent code
- N63.2Unspecified lump in the left breastHeader
Related codes
- N63.20Unspecified lump in the left breast, unspecified quadrantBillable
- N63.22Unspecified lump in the left breast, upper inner quadrantBillable
- N63.23Unspecified lump in the left breast, lower outer quadrantBillable
- N63.24Unspecified lump in the left breast, lower inner quadrantBillable
- N63.25Unspecified lump in the left breast, overlapping quadrantsBillable