D61.9 Aplastic anemia, unspecified

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Hypoplastic anemia NOS
• Medullary hypoplasia

Applies from D61 Other aplastic anemias and other bone marrow failure syndromes

Excludes2 (not included here)

• neutropenia (D70.-)

Risk adjustment (HCC)

• CMS-HCC V22: HCC 46 — Severe Hematological Disorders
• RxHCC V08: HCC 96 — Acquired Hemolytic, Aplastic, and Sideroblastic Anemias
• ESRD V24: HCC 46

MS-DRG index

Defines the logic of DRG(s) 808-810 in MDC 16.

Approximate ICD-9-CM (GEMs)

• 284.9 Aplastic anemia, unspecified (approximate)

Code annotations containing back-references to D61.9

Back-references to D61.9

• Type 1 Excludes: D61.81 Pancytopenia ("pancytopenia (due to) (with) aplastic anemia (D61.9)")

Back-references to D61

• 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 D61.9

• Aleukia › hemorrhagica
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › aplastic
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › hypoplasia, red blood cells
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › hypoplastic (idiopathic)
• Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound) › hypoproliferative (refractive)
• Aplasia › bone marrow (myeloid)
• Hypoplasia, hypoplastic › bone NOS › marrow
• Hypoplasia, hypoplastic › medullary
• Marrow (bone) › arrest
• Panhematopenia
• Panhemocytopenia

Nearby codes

• D61.810 Antineoplastic chemotherapy induced pancytopenia
• D61.811 Other drug-induced pancytopenia
• D61.818 Other pancytopenia
• D61.82 Myelophthisis
• D61.89 Other specified aplastic anemias and other bone marrow failure syndromes
• D61.9 Aplastic anemia, unspecified (this code)