• disorders of breast associated with childbirth (O91-O92)
  1. N64 Other disorders of breast


    • mechanical complication of breast prosthesis and implant (T85.4-)
    1. N64.0 Fissure and fistula of nipple

    2. N64.1 Fat necrosis of breast

      Inclusion term(s):

      • Fat necrosis (segmental) of breast
    3. N64.2 Atrophy of breast

    4. N64.3 Galactorrhea not associated with childbirth

    5. N64.4 Mastodynia

    6. N64.5 Other signs and symptoms in breast

      1. N64.51 Induration of breast

      2. N64.52 Nipple discharge

      3. N64.53 Retraction of nipple

      4. N64.59 Other signs and symptoms in breast

    7. N64.8 Other specified disorders of breast

      1. N64.81 Ptosis of breast

      2. N64.82 Hypoplasia of breast

        Inclusion term(s):

        • Micromastia
      3. N64.89 Other specified disorders of breast

        Inclusion term(s):

        • Galactocele
        • Subinvolution of breast (postlactational)
    8. N64.9 Disorder of breast, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.