C90.3

Applicable To

• Localized malignant plasma cell tumor NOS

• Plasmacytoma NOS

• Solitary myeloma

Clinical Information

• A malignant clonal) proliferation of plasma cells that are cytologically and immunophenotypically identical to those of plasma cell myeloma, but manifest a localized osseous or extraosseous growth pattern. who, 2001)

• A single focus of clonal malignant) plasma cells either in the bone or in another anatomic site without peripheral blood involvement.

• A type of cancer that begins in plasma cells white blood cells that produce antibodies). A plasmacytoma may turn into multiple myeloma.

• Any discrete, presumably solitary, mass of neoplastic plasma cells either in bone marrow or various extramedullary sites.

Details

• C90.3 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.

• The 2023 edition of ICD-10-CM C90.3 became effective on October 1, 2022.

• This is the American ICD-10-CM version of C90.3 – other international versions of ICD-10 C90.3 may differ.