D46
⚠ Non-billable
Myelodysplastic syndromes
ICD-10-CM · FY2026 · Neoplasms
Code
D46
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Neoplasms
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code D46?
ICD-10-CM code D46 represents Myelodysplastic syndromes. It is a non-billable header code requiring a more specific subcategory in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.
Is D46 billable?
No. D46 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is D46 in?
D46 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.
Related codes in the D46 category
D46.0
Refractory anemia without ring sideroblasts, so stated
Billable
D46.1
Refractory anemia with ring sideroblasts
Billable
D46.2
Refractory anemia with excess of blasts [RAEB]
Non-billable
D46.A
Refractory cytopenia with multilineage dysplasia
Billable
D46.B
Refractory cytopenia with multilineage dysplasia and ring sideroblasts
Billable
D46.C
Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality
Billable
D46.4
Refractory anemia, unspecified
Billable
D46.Z
Other myelodysplastic syndromes
Billable
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