Other paraproteinemias

This code signifies the presence of abnormal proteins in the blood (paraproteins) that do not fit the criteria for multiple myeloma, Waldenstrom's macroglobulinemia, or benign monoclonal gammopathy. These paraproteins are typically monoclonal immunoglobulins or immunoglobulin fragments produced by a single clone of plasma cells or lymphocytes. The condition may be asymptomatic or associated with various systemic manifestations.

Use this code when documentation indicates a paraproteinemia that is not further specified as a more defined condition like multiple myeloma or MGUS. This applies to cases where a monoclonal gammopathy is identified, but the clinical workup does not meet diagnostic criteria for other specific paraprotein-related disorders. Supporting documentation would include laboratory findings of a monoclonal protein (M-spike) and clinical notes ruling out other conditions.

• Do not use this code if a more specific diagnosis, such as multiple myeloma (203.00) or monoclonal gammopathy of undetermined significance (MGUS) (273.1), is documented.
• Consider sequencing this code after any underlying conditions or associated symptoms if the paraproteinemia is secondary or a manifestation of another disease.
• Ensure documentation clearly states "other paraproteinemia" or provides sufficient detail to exclude more specific diagnoses.