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| Major Categories | ALL | AML | Other Lymphoid Malignancies | CMD | | Refractory Anemias | | ||||||||||||
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Back to Morphology and Grade | || Go to Lymphoma || | |||||||||
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| Major Categories | ALL | AML | Other Lymphoid Malignancies | CMD | | Refractory Anemias | | ||||||||||||
| 9989/3 Myelodysplastic Syndromes (MDS) | |
| Definition | disruption of production of blood cells--white, red, platelets; development of poor quality blood cells resulting in low levels of mature, functional cells; < 30% blasts in marrow |
| ICD-9 code | 238.7 unless indicated otherwise below |
| Synonyms | Pre-leukemia; preleukemic disorders Smoldering leukemia; oligoblastic leukemia; subacute myeloid leukemia de novo myelodysplastic syndrome - develops with no known cause Secondary myelodysplastic syndrome - develops following chemotherapy or radiation therapy for another disease; has poorer prognosis than de novo MDS Dysmyelopoietic syndrome; hemopoietic dysplasia |
