D64.3 Other sideroblastic anemias

Billable ICD-10-CM code, FY2026.

Applicable to

• Sideroblastic anemia NOS
• Pyridoxine-responsive sideroblastic anemia NEC

Applies from D64 Other anemias

Excludes1 (never code together)

• refractory anemia (D46.-)
• refractory anemia with excess blasts in transformation [RAEB T] (C92.0-)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 109 — Acquired Hemolytic, Aplastic, and Sideroblastic Anemias
• CMS-HCC V22: HCC 48 — Coagulation Defects and Other Specified Hematological Disorders
• RxHCC V08: HCC 96 — Acquired Hemolytic, Aplastic, and Sideroblastic Anemias
• ESRD V24: HCC 48

MS-DRG index

Defines the logic of DRG(s) 811-812 in MDC 16.

Approximate ICD-9-CM (GEMs)

• 285.0 Sideroblastic anemia (approximate)

Code annotations containing back-references to D64.3

Back-references to D64.3

• Type 1 Excludes: E53.1 Pyridoxine deficiency ("pyridoxine-responsive sideroblastic anemia (D64.3)")
• Type 1 Excludes: E83.1 Disorders of iron metabolism ("sideroblastic anemia (D64.0-D64.3)")

Back-references to D64

• Code First: M90.5 Osteonecrosis in diseases classified elsewhere ("hemoglobinopathy (D50-D64)")
• Type 1 Excludes: R71 Abnormality of red blood cells ("anemias (D50-D64)")

Diagnosis Index entries for D64.3

• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › hypochromic (idiopathic) (microcytic) (normoblastic) › pyridoxine-responsive
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › pyridoxine-responsive
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › sideroblastic
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › sideroblastic › pyridoxine-responsive NEC
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › sideroblastic › specified type NEC
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › vitamin › B6-responsive

Nearby codes

• D64 Other anemias
• D64.0 Hereditary sideroblastic anemia
• D64.1 Secondary sideroblastic anemia due to disease
• D64.2 Secondary sideroblastic anemia due to drugs and toxins
• D64.3 Other sideroblastic anemias (this code)
• D64.4 Congenital dyserythropoietic anemia
• D64.8 Other specified anemias
• D64.81 Anemia due to antineoplastic chemotherapy
• D64.89 Other specified anemias
• D64.9 Anemia, unspecified