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P55 ICD-10-CA category: Haemolytic disease of fetus and newborn

P55 isn’t a code on its own. Choose one of the 4 codes beneath it, the one the documentation supports.

Official description

P55

Haemolytic disease of fetus and newborn

ICD-10-CA · Canada

Codes in P55

P55 isn’t a code on its own. Open the code that matches what the note documents.

P55.0Rh isoimmunization of fetus and newbornP55.1ABO isoimmunization of fetus and newbornP55.8Other haemolytic diseases of fetus and newbornP55.9Haemolytic disease of fetus and newborn, unspecified

Notes for P55

As CIHI prints them, with any note P55 takes from the headings above it.

Includes

  • Conditions that have their origin in the perinatal period even though death or morbidity occurs laterFrom Chapter 16: Certain conditions originating in the perinatal period (P00-P96)

Excludes

Conditions classified elsewhere.

  • Congenital stenosis and stricture of bile ducts (Q44.3)Crigler-Najjar syndrome (E80.5)Dubin-Johnson syndrome (E80.6)Gilbert's syndrome (E80.4)hereditary haemolytic anaemias (D55-D58)From P50-P61 Haemorrhagic and haematological disorders of fetus and newborn
  • Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)tetanus neonatorum (A33)whooping cough (A37.-)From Chapter 16: Certain conditions originating in the perinatal period (P00-P96)

Where P55 sits

  1. 1ChapterChapter 16: Certain conditions originating in the perinatal period (P00-P96)
  2. 2Block P50-P61Haemorrhagic and haematological disorders of fetus and newborn
  3. 3Category P55Haemolytic disease of fetus and newborn

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See P55 in the CIHI source

Frequently asked questions

Is P55 a valid ICD-10-CA code?

No. P55 (Haemolytic disease of fetus and newborn) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 4 codes; record the one the documentation supports.

Where is P55 in ICD-10-CA?

P55 sits under P50-P61 Haemorrhagic and haematological disorders of fetus and newborn, within Chapter 16: Certain conditions originating in the perinatal period (P00-P96).

What coding notes apply to P55?

ICD-10-CA lists Excludes, Includes notes for P55, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside P55

P50Fetal blood lossP52Intracranial nontraumatic haemorrhage of fetus and newbornP53Haemorrhagic disease of fetus and newbornP54Other neonatal haemorrhagesP56Hydrops fetalis due to haemolytic diseaseP57KernicterusP58Neonatal jaundice due to other excessive haemolysisP59Neonatal jaundice from other and unspecified causesP60Disseminated intravascular coagulation of fetus and newbornP61Other perinatal haematological disorders