• Mastitis (acute) (diffuse) (nonpuerperal) (subacute) N61.0
    ICD-10-CM Diagnosis Code N61.0

    Mastitis without abscess

      2017 - New Code 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Infective mastitis (acute) (nonpuerperal) (subacute)
    • Mastitis (acute) (nonpuerperal) (subacute) NOS
    • Cellulitis (acute) (nonpuerperal) (subacute) of breast NOS
    • Cellulitis (acute) (nonpuerperal) (subacute) of nipple NOS

    • chronic (cystic) - see Mastopathy, cystic
    • cystic (Schimmelbusch's type) - see Mastopathy, cystic
    • fibrocystic - see Mastopathy, cystic
    • infective N61.0
      ICD-10-CM Diagnosis Code N61.0

      Mastitis without abscess

        2017 - New Code 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Infective mastitis (acute) (nonpuerperal) (subacute)
      • Mastitis (acute) (nonpuerperal) (subacute) NOS
      • Cellulitis (acute) (nonpuerperal) (subacute) of breast NOS
      • Cellulitis (acute) (nonpuerperal) (subacute) of nipple NOS
      • newborn P39.0
        ICD-10-CM Diagnosis Code P39.0

        Neonatal infective mastitis

          2016 2017 2018 2019 2020 Billable/Specific Code Code on Newborn Record
        Type 1 Excludes
        • breast engorgement of newborn (P83.4)
        • noninfective mastitis of newborn (P83.4)
    • interstitial, gestational or puerperal - see Mastitis, obstetric
    • neonatal (noninfective) P83.4
      ICD-10-CM Diagnosis Code P83.4

      Breast engorgement of newborn

        2016 2017 2018 2019 2020 Billable/Specific Code Code on Newborn Record
      Applicable To
      • Noninfective mastitis of newborn
      • infective P39.0
        ICD-10-CM Diagnosis Code P39.0

        Neonatal infective mastitis

          2016 2017 2018 2019 2020 Billable/Specific Code Code on Newborn Record
        Type 1 Excludes
        • breast engorgement of newborn (P83.4)
        • noninfective mastitis of newborn (P83.4)
    • obstetric (interstitial) (nonpurulent)
      • associated with
        • lactation O91.23
          ICD-10-CM Diagnosis Code O91.23

          Nonpurulent mastitis associated with lactation

            2016 2017 2018 2019 2020 Billable/Specific Code Maternity Dx (12-55 years)
          Applicable To
          • Interstitial mastitis associated with lactation
          • Lymphangitis of breast associated with lactation
          • Mastitis NOS associated with lactation
          • Parenchymatous mastitis associated with lactation
        • pregnancy O91.21-
          ICD-10-CM Diagnosis Code O91.21-

          Nonpurulent mastitis associated with pregnancy

            2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
          Applicable To
          • Gestational interstitial mastitis
          • Gestational lymphangitis of breast
          • Gestational mastitis NOS
          • Gestational parenchymatous mastitis
        • puerperium O91.22
          ICD-10-CM Diagnosis Code O91.22

          Nonpurulent mastitis associated with the puerperium

            2016 2017 2018 2019 2020 Billable/Specific Code Maternity Dx (12-55 years)
          Applicable To
          • Puerperal interstitial mastitis
          • Puerperal lymphangitis of breast
          • Puerperal mastitis NOS
          • Puerperal parenchymatous mastitis
      • purulent
        • associated with
          • lactation O91.13
            ICD-10-CM Diagnosis Code O91.13

            Abscess of breast associated with lactation

              2016 2017 2018 2019 2020 Billable/Specific Code Maternity Dx (12-55 years)
            Applicable To
            • Mammary abscess associated with lactation
            • Purulent mastitis associated with lactation
            • Subareolar abscess associated with lactation
          • pregnancy O91.11-
            ICD-10-CM Diagnosis Code O91.11-

            Abscess of breast associated with pregnancy

              2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
            Applicable To
            • Gestational mammary abscess
            • Gestational purulent mastitis
            • Gestational subareolar abscess
          • puerperium O91.12
            ICD-10-CM Diagnosis Code O91.12

            Abscess of breast associated with the puerperium

              2016 2017 2018 2019 2020 Billable/Specific Code Maternity Dx (12-55 years)
            Applicable To
            • Puerperal mammary abscess
            • Puerperal purulent mastitis
            • Puerperal subareolar abscess
    • periductal - see Ectasia, mammary duct
    • phlegmonous - see Mastopathy, cystic
    • plasma cell - see Ectasia, mammary duct
    • with abscess N61.1
      ICD-10-CM Diagnosis Code N61.1

      Abscess of the breast and nipple

        2017 - New Code 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Abscess (acute) (chronic) (nonpuerperal) of areola
      • Abscess (acute) (chronic) (nonpuerperal) of breast
      • Carbuncle of breast
      • Mastitis with abscess
    • without abscess N61.0
      ICD-10-CM Diagnosis Code N61.0

      Mastitis without abscess

        2017 - New Code 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Infective mastitis (acute) (nonpuerperal) (subacute)
      • Mastitis (acute) (nonpuerperal) (subacute) NOS
      • Cellulitis (acute) (nonpuerperal) (subacute) of breast NOS
      • Cellulitis (acute) (nonpuerperal) (subacute) of nipple NOS