D56.9 Thalassemia, unspecified

Billable ICD-10-CM code, FY2026.

Applicable to

• Mediterranean anemia (with other hemoglobinopathy)

Applies from D56 Thalassemia

Excludes1 (never code together)

• sickle-cell thalassemia (D57.4-)

MS-DRG index

Defines the logic of DRG(s) 791 in MDC 15.

Approximate ICD-9-CM (GEMs)

• 282.40 Thalassemia, unspecified

Code annotations containing back-references to D56.9

Back-references to D56

• Code First: M36.3 Arthropathy in other blood disorders ("thalassemia (D56.-)")
• 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 D56.9

• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › Mediterranean (with other hemoglobinopathy)
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › microelliptopoikilocytic (Rietti-Greppi- Micheli)
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › Rietti-Greppi-Micheli
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › thalassemia
• Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › in (due to) › thalassemia NEC
• Disease, diseased › hemoglobin or Hb › abnormal (mixed) NEC › with thalassemia
• Disease, diseased › hemoglobin or Hb › H (Hb-H) (thalassemia) › with other abnormal hemoglobin NEC
• Disease, diseased › hemoglobin or Hb › I thalassemia
• Disease, diseased › high fetal gene or hemoglobin thalassemia
• Leptocytosis, hereditary
• Rietti-Greppi-Micheli anemia
• Thalassemia (anemia) (disease)

Nearby codes

• D56.2 Delta-beta thalassemia
• D56.3 Thalassemia minor
• D56.4 Hereditary persistence of fetal hemoglobin [HPFH]
• D56.5 Hemoglobin E-beta thalassemia
• D56.8 Other thalassemias
• D56.9 Thalassemia, unspecified (this code)