2023

  1. ICD-10-CM Codes
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  2. P00-P96
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  3. P35-P39
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  4. P39-
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  5. 2023 ICD-10-CM Diagnosis Code P39.0

2023 ICD-10-CM Diagnosis Code P39.0

Neonatal infective mastitis

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record
  • P39.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM P39.0 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of P39.0 - other international versions of ICD-10 P39.0 may differ.
ICD-10-CM Coding Rules
  • P39.0 should be used on the newborn record - not on the maternal record.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as P39.0. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • breast engorgement of newborn (
    ICD-10-CM Diagnosis Code P83.4

    Breast engorgement of newborn

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record
    Applicable To
    • Noninfective mastitis of newborn
    P83.4
    )
  • noninfective mastitis of newborn (
    ICD-10-CM Diagnosis Code P83.4

    Breast engorgement of newborn

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record
    Applicable To
    • Noninfective mastitis of newborn
    P83.4
    )
The following code(s) above P39.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to P39.0:
  • P00-P96
    2023 ICD-10-CM Range P00-P96

    Certain conditions originating in the perinatal period

    Includes
    • conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later
    Note
    • Codes from this chapter are for use on newborn records only, never on maternal records
    Type 2 Excludes
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • tetanus neonatorum (A33)
    Certain conditions originating in the perinatal period
  • P35-P39
    2023 ICD-10-CM Range P35-P39

    Infections specific to the perinatal period

    Applicable To
    • Infections acquired in utero, during birth via the umbilicus, or during the first 28 days after birth
    Type 2 Excludes
    • asymptomatic human immunodeficiency virus [HIV] infection status (Z21)
    • congenital gonococcal infection (A54.-)
    • congenital pneumonia (P23.-)
    • congenital syphilis (A50.-)
    • human immunodeficiency virus [HIV] disease (B20)
    • infant botulism (A48.51)
    • infectious diseases not specific to the perinatal period (A00-B99, J09, J10.-)
    • intestinal infectious disease (A00-A09)
    • laboratory evidence of human immunodeficiency virus [HIV] (R75)
    • tetanus neonatorum (A33)
    Infections specific to the perinatal period
  • P39
    ICD-10-CM Diagnosis Code P39

    Other infections specific to the perinatal period

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Use Additional
    • code to identify organism or specific infection
    Other infections specific to the perinatal period
ICD-10-CM P39.0 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert P39.0 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to P39.0:
  • Type 1 Excludes: N61
    ICD-10-CM Diagnosis Code N61

    Inflammatory disorders of breast

      2016 2017 - Converted to Parent Code 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • inflammatory carcinoma of breast (C50.9)
    • inflammatory disorder of breast associated with childbirth (O91.-)
    • neonatal infective mastitis (P39.0)
    • thrombophlebitis of breast [Mondor's disease] (I80.8)

Diagnosis Index entries containing back-references to P39.0:
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
    ICD-10-CM Diagnosis Code L02.91

    Cutaneous abscess, unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    • breast (acute) (chronic) (nonpuerperal) N61.1
      ICD-10-CM Diagnosis Code N61.1

      Abscess of the breast and nipple

        2017 - New Code 2018 2019 2020 2021 2022 2023 Billable/Specific Code
      Applicable To
      • Abscess (acute) (chronic) (nonpuerperal) of areola
      • Abscess (acute) (chronic) (nonpuerperal) of breast
      • Carbuncle of breast
      • Mastitis with abscess
      • newborn P39.0
  • Mastitis (acute) (diffuse) (nonpuerperal) (subacute) N61.0
    ICD-10-CM Diagnosis Code N61.0

    Mastitis without abscess

      2017 - New Code 2018 2019 2020 2021 2022 2023 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
    • infective N61.0
      ICD-10-CM Diagnosis Code N61.0

      Mastitis without abscess

        2017 - New Code 2018 2019 2020 2021 2022 2023 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
    • neonatal (noninfective) P83.4
      ICD-10-CM Diagnosis Code P83.4

      Breast engorgement of newborn

        2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Code on Newborn Record
      Applicable To
      • Noninfective mastitis of newborn
      • infective P39.0
  • Newborn (infant) (liveborn) (singleton) Z38.2
    ICD-10-CM Diagnosis Code Z38.2

    Single liveborn infant, unspecified as to place of birth

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Newborn/Neonate Dx (0 years) POA Exempt
    Applicable To
    • Single liveborn infant NOS

ICD-10-CM Codes Adjacent To P39.0
P37.2 Neonatal (disseminated) listeriosis
P37.3 Congenital falciparum malaria
P37.4 Other congenital malaria
P37.5 Neonatal candidiasis
P37.8 Other specified congenital infectious and parasitic diseases
P37.9 Congenital infectious or parasitic disease, unspecified
P38 Omphalitis of newborn
P38.1 Omphalitis with mild hemorrhage
P38.9 Omphalitis without hemorrhage
P39 Other infections specific to the perinatal period
P39.0 Neonatal infective mastitis
P39.1 Neonatal conjunctivitis and dacryocystitis
P39.2 Intra-amniotic infection affecting newborn, not elsewhere classified
P39.3 Neonatal urinary tract infection
P39.4 Neonatal skin infection
P39.8 Other specified infections specific to the perinatal period
P39.9 Infection specific to the perinatal period, unspecified
P50 Newborn affected by intrauterine (fetal) blood loss
P50.0 Newborn affected by intrauterine (fetal) blood loss from vasa previa
P50.1 Newborn affected by intrauterine (fetal) blood loss from ruptured cord
P50.2 Newborn affected by intrauterine (fetal) blood loss from placenta

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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