ICD-10-CM D46.Z is the diagnosis code for Other 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 billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as D46.Z. They are mutually exclusive:
Understanding where D46.Z sits in the ICD-10-CM classification helps ensure proper coding:
Yes, D46.Z is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
D46.Z is the ICD-10-CM diagnosis code for "Other myelodysplastic syndromes". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of D46.Z is D46 ("Myelodysplastic syndromes"). D46.Z provides a more specific classification within this category.
D46.Z 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.
Use D46.Z when the patients documented diagnosis matches "Other myelodysplastic syndromes" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Other myelodysplastic syndromes is D46.Z.
Yes, D46.Z can be used as a primary diagnosis code since it is billable and specific.
D46.Z is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for D46.Z include: chronic myelomonocytic leukemia (C93.1-).
Yes, D46.Z is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.