D46
Non-Billable

Myelodysplastic syndromes

Non-Billable / Non-Specific Code

What is Myelodysplastic syndromes?

ICD-10-CM D46 is the diagnosis code for Myelodysplastic syndromes. This code falls under the section "Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes" within Chapter 2 — Neoplasms (C00-D49). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

â„šī¸ Excludes2

Coding Guidelines for D46

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in D46. If the patient has both, code each condition separately:

  • drug-induced aplastic anemia (D61.1)

ICD-10-CM Code Hierarchy

Understanding where D46 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 9 entries
D46.0Refractory anemia without ring sideroblasts, so statedBillableD46.1Refractory anemia with ring sideroblastsBillableD46.2Refractory anemia with excess of blasts [RAEB]Non-BillableD46.20Refractory anemia with excess of blasts, unspecifiedBillableD46.21Refractory anemia with excess of blasts 1BillableD46.22Refractory anemia with excess of blasts 2BillableD46.4Refractory anemia, unspecifiedBillableD46.9Myelodysplastic syndrome, unspecifiedBillableD46.ARefractory cytopenia with multilineage dysplasiaBillableD46.BRefractory cytopenia with multilineage dysplasia and ring sideroblastsBillableD46.CMyelodysplastic syndrome with isolated del(5q) chromosomal abnormalityBillableD46.ZOther myelodysplastic syndromesBillable
Related Codes

Frequently Asked Questions

Is D46 a billable ICD-10-CM code?

No, D46 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does D46 mean?

D46 is the ICD-10-CM diagnosis code for "Myelodysplastic syndromes". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is D46 in?

D46 is located in Section D37-D48 — "Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes" within Chapter 2 of the ICD-10-CM Tabular List.

What are the sub-codes of D46?

D46 has 9 sub-code(s) that provide more specific detail: D46.0, D46.1, D46.2, D46.4, D46.9 and more.

When should I use D46?

Use D46 when the patients documented diagnosis matches "Myelodysplastic syndromes" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Myelodysplastic syndromes?

The ICD-10-CM code for Myelodysplastic syndromes is D46.

Can D46 be used for primary diagnosis?

No, D46 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is D46 in?

D46 is in Chapter 2 of the ICD-10-CM Tabular List.

Is D46 valid for 2026?

Yes, D46 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousD45Polycythemia veraNext →D46.0Refractory anemia without ring sideroblasts, so stated
Code Details
D46
Myelodysplastic syndromes
Non-Billable / Non-Specific Code
2 — Neoplasms (C00-D49)
D37-D48 — Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes
2026 ICD-10-CM