D55 ICD-10-CA category: Anaemia due to enzyme disorders
D55 isn’t a code on its own. Choose one of the 6 codes beneath it, the one the documentation supports.
Official description
D55Anaemia due to enzyme disorders
ICD-10-CA · Canada
Codes in D55
D55 isn’t a code on its own. Open the code that matches what the note documents.
D55.0Anaemia due to glucose-6-phosphate dehydrogenase [G6PD] deficiencyD55.1Anaemia due to other disorders of glutathione metabolismD55.2Anaemia due to disorders of glycolytic enzymesD55.3Anaemia due to disorders of nucleotide metabolismD55.8Other anaemias due to enzyme disordersD55.9Anaemia due to enzyme disorder, unspecifiedNotes for D55
As CIHI prints them, with any note D55 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Drug-induced enzyme deficiency anaemia (D59.2)
- Autoimmune disease (systemic) NOS (M35.9)certain conditions originating in the perinatal period (P00-P96)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)human immunodeficiency virus [HIV] disease (B24)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
Where D55 sits
- 1ChapterChapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
- 2Block D55-D59Haemolytic anaemias
- 3Category D55Anaemia due to enzyme disorders
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.
Frequently asked questions
Is D55 a valid ICD-10-CA code?
No. D55 (Anaemia due to enzyme disorders) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 6 codes; record the one the documentation supports.
Where is D55 in ICD-10-CA?
D55 sits under D55-D59 Haemolytic anaemias, within Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89).
What coding notes apply to D55?
ICD-10-CA lists Excludes notes for D55, 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.