D64.3 ICD-10-CA code: Other sideroblastic anaemias

D64.3 is the ICD-10-CA code for “Other sideroblastic anaemias” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

D64.3

Other sideroblastic anaemias

ICD-10-CA · Canada · Also written D643

Index terms

Entries in CIHI’s alphabetical index that lead to D64.3. Searching the index by the condition the note names is how coders reach this code.

  • Anemia, sideroblastic
  • Anemia, pyridoxine responsive
  • Anemia, vitamin B6 responsive
  • Anemia, sideroblastic, specified type NEC
  • Anemia, hypochromic, pyridoxine responsive
  • Anemia, sideroblastic, pyridoxine responsive NEC

Notes for D64.3

As CIHI prints them, with any note D64.3 takes from the headings above it.

Includes

  • Sideroblastic anaemia:• NOS• pyridoxine-responsive NEC

Excludes

Conditions classified elsewhere.

  • Refractory anaemia:• NOS (D46.4)• sideroblasts (D46.1)• with excess of blasts (D46.2)• with transformation (C92.0)• without sideroblasts (D46.0)From D64 Other anaemias
  • 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 D64.3 sits

  1. 1ChapterChapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
  2. 2Block D60-D64Aplastic and other anaemias
  3. 3Category D64Other anaemias
  4. 4Valid code D64.3Other sideroblastic anaemias

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

What does ICD-10-CA code D64.3 mean?

D64.3 is the ICD-10-CA code for “Other sideroblastic anaemias” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is D64.3 in ICD-10-CA?

D64.3 sits under D64 Other anaemias, within D60-D64 Aplastic and other 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 D64.3?

ICD-10-CA lists Includes, Excludes notes for D64.3, 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.