D46

Myelodysplastic syndromes

Non-billable header

D46 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes

  • Note: Functional activity
  • Note: All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Note: Morphology [Histology]
  • Note: Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Note: Primary malignant neoplasms overlapping site boundaries
  • Note: A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Note: Malignant neoplasm of ectopic tissue
  • Note: Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
  • Note: Categories D37-D44, and D48 classify by site neoplasms of uncertain behavior, i.e., histologic confirmation whether the neoplasm is malignant or benign cannot be made.

Excludes1

Not coded here — never report together with this code.

  • neoplasms of unspecified behavior (D49.-)

Excludes2

Not included here — may be reported together when both conditions exist.

  • drug-induced aplastic anemia (D61.1)

Use additional code

Add a code to identify the following, if applicable.

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

More specific codes D46

  • D46.0Refractory anemia without ring sideroblasts, so statedBillable
  • D46.1Refractory anemia with ring sideroblastsBillable
  • D46.2Refractory anemia with excess of blasts [RAEB]Header
  • D46.ARefractory cytopenia with multilineage dysplasiaBillable
  • D46.BRefractory cytopenia with multilineage dysplasia and ring sideroblastsBillable
  • D46.CMyelodysplastic syndrome with isolated del(5q) chromosomal abnormalityBillable
  • D46.4Refractory anemia, unspecifiedBillable
  • D46.ZOther myelodysplastic syndromesBillable
  • D46.9Myelodysplastic syndrome, unspecifiedBillable

Related codes

  • D37Neoplasm of uncertain behavior of oral cavity and digestive organsHeader
  • D38Neoplasm of uncertain behavior of middle ear and respiratory and intrathoracic organsHeader
  • D39Neoplasm of uncertain behavior of female genital organsHeader
  • D40Neoplasm of uncertain behavior of male genital organsHeader
  • D41Neoplasm of uncertain behavior of urinary organsHeader
  • D42Neoplasm of uncertain behavior of meningesHeader
  • D43Neoplasm of uncertain behavior of brain and central nervous systemHeader
  • D44Neoplasm of uncertain behavior of endocrine glandsHeader
  • D45Polycythemia veraBillable
  • D47Other neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissueHeader
  • D48Neoplasm of uncertain behavior of other and unspecified sitesHeader

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