D47.2 Monoclonal gammopathy

Billable ICD-10-CM code, FY2026.

Applicable to

• Monoclonal gammopathy of undetermined significance [MGUS]

MS-DRG index

Defines the logic of DRG(s) 814-816 in MDC 16.

Approximate ICD-9-CM (GEMs)

• 273.1 Monoclonal paraproteinemia (approximate)

Code annotations containing back-references to D47.2

Back-references to D47.2

• Type 1 Excludes: D89 Other disorders involving the immune mechanism, not elsewhere classified ("monoclonal gammopathy (of undetermined significance) (D47.2)")
• Type 1 Excludes: E88.0 Disorders of plasma-protein metabolism, not elsewhere classified ("monoclonal gammopathy (of undetermined significance) (D47.2)")

Diagnosis Index entries for D47.2

• Gammopathy (of undetermined significance [MGUS])
• Gammopathy (of undetermined significance [MGUS]) › associated with lymphoplasmacytic dyscrasia
• Gammopathy (of undetermined significance [MGUS]) › monoclonal
• Macroglobulinemia (idiopathic) (primary) › monoclonal (essential)
• Paraproteinemia › monoclonal
• Paraproteinemia › secondary to malignant disease
• Syndrome › Schnitzler

Nearby codes

• D47.0 Mast cell neoplasms of uncertain behavior
• D47.01 Cutaneous mastocytosis
• D47.02 Systemic mastocytosis
• D47.09 Other mast cell neoplasms of uncertain behavior
• D47.1 Chronic myeloproliferative disease
• D47.2 Monoclonal gammopathy (this code)
• D47.3 Essential (hemorrhagic) thrombocythemia
• D47.4 Osteomyelofibrosis
• D47.Z Other specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue
• D47.Z1 Post-transplant lymphoproliferative disorder (PTLD)
• D47.Z2 Castleman disease