SEER Logo

SEER Training Modules

Other Lymphoid Malignancies

9732/3 Multiple myeloma

(malignancy of plasma cell/B-lymphocyte)

Definition

Single area of invasion and destruction of bone by proliferating plasma cells

ICD-9 code

203.0

Synonyms

9731/3 Solitary plasmacytoma

(malignancy of plasma cell/B-lymphocyte)

Definition

Single area of invasion and destruction of bone by proliferating plasma cells

ICD-9 code

238.6

Synonyms

  • Solitary myeloma
  • Plasma cell tumor

9733/3 Plasma cell leukemia

(malignancy of plasma cell/B-lymphocyte)

Definition

Presence of abnormal level of plasma cells in circulating blood

ICD-9 code

203.1

Synonyms

  • Plasmacytic leukemia

9765/1 Monoclonal gammopathy of unknown significance

(MGUS) (not considered a malignancy in ICD-0-3)

Definition

Unexplained production of a single gamma globulin (rather than all types)

ICD-9 code

273.1

9761/3 Waldenstrom's macroglobulinemia

Definition

Tare malignancy involving excess B-lymphocytes that secrete immunoglobulins (code to C42.0); similar to myeloma but without bone damage resulting in circulatory problems because blood is too thick to flow properly

ICD-9 code

273.3

Synonyms

  • Waldenstrom syndrome
  • Primary macroglobulinernia