N61.21

Granulomatous mastitis, right breast

Billable / specific

N61.21 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.

  • disorders of breast associated with childbirth (O91-O92) (from N61)
  • inflammatory carcinoma of breast (C50.A-) (from N61)
  • inflammatory disorder of breast associated with childbirth (O91.-) (from N61)
  • neonatal infective mastitis (P39.0) (from N61)
  • thrombophlebitis of breast [Mondor's disease] (I80.8) (from N61)

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96) (from N61)
  • certain infectious and parasitic diseases (A00-B99) (from N61)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from N61)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from N61)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from N61)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from N61)
  • neoplasms (C00-D49) (from N61)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from N61)

Parent code

  • N61.2Granulomatous mastitisHeader

Related codes

  • N61.20Granulomatous mastitis, unspecified breastBillable
  • N61.22Granulomatous mastitis, left breastBillable
  • N61.23Granulomatous mastitis, bilateral breastBillable

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