N64.82

Hypoplasia of breast

Billable / specific

N64.82 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Micromastia

Excludes1

Not coded here — never report together with this code.

  • congenital absence of breast (Q83.0)
  • hypoplasia of native breast in relation to reconstructed breast (N65.1)
  • disorders of breast associated with childbirth (O91-O92) (from N64)

Excludes2

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

  • certain conditions originating in the perinatal period (P04-P96) (from N64)
  • certain infectious and parasitic diseases (A00-B99) (from N64)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from N64)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from N64)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from N64)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from N64)
  • neoplasms (C00-D49) (from N64)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from N64)
  • mechanical complication of breast prosthesis and implant (T85.4-) (from N64)

Also known as

  • Micromastia
  • Hypoplasia, hypoplastic, breast

Parent code

  • N64.8Other specified disorders of breastHeader

Related codes

  • N64.81Ptosis of breastBillable
  • N64.89Other specified disorders of breastBillable

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