This neoplasm is not reportable.

Name

MGUS

ICD-O-2 Morphology

9765/1: Monoclonal gammopathy
Effective 1992 - 2000

ICD-O-3 Morphology

9765/1: Monoclonal gammopathy
Effective 2001 and later

Not Reportable

This neoplasm is not reportable

Primary Site(s)

See Abstractor Notes

Alternate Names

Benign monoclonal gammopathy
Idiopathic paraproteinemia
Monoclonal gammopathy of undetermined significance
Monoclonal gammopathy, NOS
Monoclonal gammopathy, unassociated
Monoclonal gammopathy, unattributed
Non-myelomatous gammopathy

Definition

MGUS is defined as the presence in the serum of an M-protein < 30 g/L, bone marrow clonal plasma cells < 10%, no end organ damage, and no evidence of B-cell lymphoma or other disease known to produce an M-protein. MGUS is considered a pre-neoplastic condition.

See also Plasma cell dyscrasia.

Definitive Diagnostic Methods

This data item does not apply

Genetics Data

This data item does not apply

Immunophenotyping

This data item does not apply

Corresponding ICD-9 Codes

273.1 Monoclonal paraproteinemia

Corresponding ICD-10 Codes

D47.2 Monoclonal gammopathy

Corresponding ICD-10-CM Codes (U.S. only)

D47.2 Monoclonal gammopathy (effective October 01, 2015)
Glossary