D46
Non-billableMyelodysplastic syndromes
Myelodysplastic syndromes
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
Child Codes (9)
D46.0Refractory anemia without ring sideroblasts, so stated
D46.1Refractory anemia with ring sideroblasts
D46.2Refractory anemia with excess of blasts [RAEB]
D46.4Refractory anemia, unspecified
D46.9Myelodysplastic syndrome, unspecified
D46.ARefractory cytopenia with multilineage dysplasia
D46.BRefract cytopenia w multilin dysplasia and ring sideroblasts
D46.CMyelodysplastic syndrome w isolated del(5q) chromsoml abnlt
D46.ZOther myelodysplastic syndromes
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(33)
UMLS
- DysmyelopoiesisC3463824
- Dysmyelopoietic SyndromeC3463824
- Dysmyelopoietic SyndromesC3463824
- Dysmyelopoietic syndromeC3463824
- MDNC3463824
- MDSC3463824
- MDS - Myelodysplastic syndromeC3463824
- MYELODYSPLASTIC SYNDROMEC3463824
- MyelodysplasiaC3463824
- Myelodysplastic NeoplasmC3463824
- Myelodysplastic SyndromeC3463824
- Myelodysplastic Syndrome/NeoplasmC3463824
- Myelodysplastic SyndromesC3463824
- Myelodysplastic neoplasmC3463824
- Myelodysplastic neoplasm (morphologic abnormality)C3463824
- Myelodysplastic syndromeC3463824
- Myelodysplastic syndrome (MDS)C3463824
- Myelodysplastic syndrome (clinical)C3463824
- Myelodysplastic syndrome (disorder)C3463824
- Myelodysplastic syndrome NOSC3463824
- Myelodysplastic syndrome, unspecifiedC3463824
- Myelodysplastic syndromesC3463824
- Myeloid dysplasiaC3463824
- Oligoblastic LeukemiaC3463824
- Smoldering LeukemiaC3463824
- Syndrome, DysmyelopoieticC3463824
- Syndrome, MyelodysplasticC3463824
- Syndromes, DysmyelopoieticC3463824
- Syndromes, MyelodysplasticC3463824
- myelodysplasiaC3463824
- myelodysplastic syndromeC3463824
- myelodysplastic syndromesC3463824
- myeloid dysplasiaC3463824
Frequently Asked Questions
What is the ICD-10 code for myelodysplastic syndromes?
The ICD-10-CM code for myelodysplastic syndromes is D46. The full clinical description is "Myelodysplastic syndromes". D46 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code D46 mean?
ICD-10-CM code D46 represents “Myelodysplastic syndromes”. It is classified under Chapter 2: Neoplasms and is a non-billable header code. Use a more specific child code for billing purposes.
Is D46 a billable code?
No, D46 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 9 child codes under D46.
What chapter is D46 in?
D46 is in Chapter 2: Neoplasms (codes C00-D49).
What codes cannot be used with D46?
D46 has Excludes1 notes indicating codes that cannot be used together with it, including: neoplasms of unspecified behavior (D49.-).
What are the subcategories under D46?
D46 has 9 child codes, including: D46.0 (Refractory anemia without ring sideroblasts, so stated), D46.1 (Refractory anemia with ring sideroblasts), D46.2 (Refractory anemia with excess of blasts [RAEB]), D46.4 (Refractory anemia, unspecified), and 5 more.
Are additional codes required with D46?
Yes, when using D46, also report: adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5).
What are the UMLS CUIs for D46?
D46 is linked to 1 UMLS Concept Unique Identifier: C3463824. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does D46 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like myelodysplastic syndromes affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of D46?
D46 maps to the ICD-11 code: 2A3Z (Myelodysplastic syndromes, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.