D46.9
Billable codeMyelodysplastic syndrome, unspecified
The ICD-10 code for myelodysplastic syndrome, unspecified is D46.9.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Myelodysplasia NOS
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- D46.0Refractory anemia without ring sideroblasts, so stated
- D46.1Refractory anemia with ring sideroblasts
- D46.2Refractory anemia with excess of blasts [RAEB]non-billable header
- D46.4Refractory anemia, unspecified
- D46.ARefractory cytopenia with multilineage dysplasia
- D46.BRefractory cytopenia with multilineage dysplasia and ring sideroblasts
- D46.CMyelodysplastic syndrome with isolated del(5q) chromosomal abnormality
- D46.ZOther myelodysplastic syndromes
- D46.9Myelodysplastic syndrome, unspecified
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 23875Approximate match
Associated MS-DRGs
D46.9 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.