2021

  1. ICD-10-CM Codes
    2. ›
  2. P00-P96 Certain conditions originating in the perinatal period
    3. ›
  3. P50-P61 Hemorrhagic and hematological disorders of newborn
    4. ›
  4. P55- Hemolytic disease of newborn
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code P55.0

2021 ICD-10-CM Diagnosis Code P55.0

Rh isoimmunization of newborn

    2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
  • P55.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM P55.0 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of P55.0 - other international versions of ICD-10 P55.0 may differ.
ICD-10-CM Coding Rules
  • P55.0 should be used on the newborn record - not on the maternal record.
The following code(s) above P55.0 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 P55.0:
  • P00-P96
    2021 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
  • P50-P61
    2021 ICD-10-CM Range P50-P61

    Hemorrhagic and hematological disorders of newborn

    Type 1 Excludes
    • congenital stenosis and stricture of bile ducts (Q44.3)
    • Crigler-Najjar syndrome (E80.5)
    • Dubin-Johnson syndrome (E80.6)
    • Gilbert syndrome (E80.4)
    • hereditary hemolytic anemias (D55-D58)
    Hemorrhagic and hematological disorders of newborn
Approximate Synonyms
  • Hemolytic disease of fetus or newborn due to rhd isoimmunization
  • Rh hemolytic disease, fetus or newborn
Clinical Information
  • A disorder caused when there is a rh-factor blood-type incompatibility between the mother and fetus, and the mother's immune system forms antibodies that attack the red blood cells of her unborn child. This disorder can only occur if the mother is rh-negative and the fetus is rh-positive.
ICD-10-CM P55.0 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 794 Neonate with other significant problems

Convert P55.0 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

Diagnosis Index entries containing back-references to P55.0:
  • Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) D64.9
    ICD-10-CM Diagnosis Code D64.9

    Anemia, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • newborn P61.4
      ICD-10-CM Diagnosis Code P61.4

      Other congenital anemias, not elsewhere classified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
      Applicable To
      • Congenital anemia NOS
      • due to
        • Rh P55.0 (antibodies, isoimmunization, maternal/fetal incompatibility)
  • Antibodies, maternal (blood group) - see Isoimmunization, affecting management of pregnancy
    • anti-D - see Isoimmunization, affecting management of pregnancy, Rh
      • newborn P55.0
  • Disease, diseased - see also Syndrome
    • hemolytic (newborn) P55.9
      ICD-10-CM Diagnosis Code P55.9

      Hemolytic disease of newborn, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
  • Erythroblastosis (fetalis) (newborn) P55.9
    ICD-10-CM Diagnosis Code P55.9

    Hemolytic disease of newborn, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
    • due to
      • Rh P55.0 (antibodies) (incompatibility) (isoimmunization)
  • Icterus - see also Jaundice
    • gravis, newborn P55.0
  • Incompatibility
    • Rh (blood group) (factor) Z31.82
      ICD-10-CM Diagnosis Code Z31.82

      Encounter for Rh incompatibility status

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      • newborn P55.0
  • Isoimmunization NEC - see also Incompatibility
    • newborn P55.9
      ICD-10-CM Diagnosis Code P55.9

      Hemolytic disease of newborn, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
      • Rhesus P55.0 (Rh)
  • Jaundice (yellow) R17
    ICD-10-CM Diagnosis Code R17

    Unspecified jaundice

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Type 1 Excludes
    • newborn P59.9
      ICD-10-CM Diagnosis Code P59.9

      Neonatal jaundice, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
      Applicable To
      • Neonatal physiological jaundice (intense)(prolonged) NOS
      • due to or associated with
        • hemolytic disease P55.9
          ICD-10-CM Diagnosis Code P55.9

          Hemolytic disease of newborn, unspecified

            2016 2017 2018 2019 2020 2021 Billable/Specific Code Code on Newborn Record
          • Rh isoimmunization P55.0
        • Rh
          • antibodies P55.0
          • incompatibility, maternal/fetal P55.0
          • isoimmunization P55.0
  • Rh (factor)

ICD-10-CM Codes Adjacent To P55.0
P54.0 Neonatal hematemesis
P54.1 Neonatal melena
P54.2 Neonatal rectal hemorrhage
P54.3 Other neonatal gastrointestinal hemorrhage
P54.4 Neonatal adrenal hemorrhage
P54.5 Neonatal cutaneous hemorrhage
P54.6 Neonatal vaginal hemorrhage
P54.8 Other specified neonatal hemorrhages
P54.9 Neonatal hemorrhage, unspecified
P55 Hemolytic disease of newborn
P55.0 Rh isoimmunization of newborn
P55.1 ABO isoimmunization of newborn
P55.8 Other hemolytic diseases of newborn
P55.9 Hemolytic disease of newborn, unspecified
P56 Hydrops fetalis due to hemolytic disease
P56.0 Hydrops fetalis due to isoimmunization
P56.9 Hydrops fetalis due to other and unspecified hemolytic disease
P56.90 Hydrops fetalis due to unspecified hemolytic disease
P56.99 Hydrops fetalis due to other hemolytic disease
P57 Kernicterus
P57.0 Kernicterus due to isoimmunization

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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