ICD10BillableValid for clinical use
ICD-10 Code D47.2: Monoclonal gammopathy
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Neoplasms (C00-D49).
When is it used?
- May be used when a clinician documents monoclonal gammopathy in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
2Neoplasms (C00-D49)
block
D37-D48Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes
category
D47Other neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue
currentD47
Official coding notes
Inclusion terms
- Monoclonal gammopathy of undetermined significance [MGUS]
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
OncologistGeneral Physician
Related codes
D47.0Mast cell neoplasms of uncertain behaviorcategoryD47.1Chronic myeloproliferative diseasecodeD47.3Essential (hemorrhagic) thrombocythemiacodeD47.4OsteomyelofibrosiscodeD47.ZOther specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissuecategoryD47.9Neoplasm of uncertain behavior of lymphoid, hematopoietic and related tissue, unspecifiedcode
Sibling codes
D47.0Mast cell neoplasms of uncertain behaviorD47.1Chronic myeloproliferative diseasebillableD47.3Essential (hemorrhagic) thrombocythemiabillableD47.4OsteomyelofibrosisbillableD47.ZOther specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissueD47.9Neoplasm of uncertain behavior of lymphoid, hematopoietic and related tissue, unspecifiedbillable
Coverage-related procedures and services
CPT 88182high
FLOW CYTOMETRY, CELL CYCLE OR DNA ANALYSIS
Source: CMS coverage guidance
CPT 88185high
FLOW CYTOMETRY, CELL SURFACE, CYTOPLASMIC, OR NUCLEAR MARKER, TECHNICAL COMPONENT ONLY; EACH ADDITIONAL MARKER (LIST SEPARATELY IN ADDITION TO CODE FOR FIRST MARKER)
Source: CMS coverage guidance
CPT 88184high
FLOW CYTOMETRY, CELL SURFACE, CYTOPLASMIC, OR NUCLEAR MARKER, TECHNICAL COMPONENT ONLY; FIRST MARKER
Source: CMS coverage guidance
CPT 88189high
FLOW CYTOMETRY, INTERPRETATION; 16 OR MORE MARKERS
Source: CMS coverage guidance
CPT 88187high
FLOW CYTOMETRY, INTERPRETATION; 2 TO 8 MARKERS
Source: CMS coverage guidance
CPT 88188high
FLOW CYTOMETRY, INTERPRETATION; 9 TO 15 MARKERS
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 58648008high
Benign monoclonal gammopathy
Source: SNOMED International ICD-10 map
SNOMED_CT 285423008high
IgA monoclonal gammopathy of uncertain significance
Source: SNOMED International ICD-10 map
SNOMED_CT 285428004high
IgD monoclonal gammopathy of uncertain significance
Source: SNOMED International ICD-10 map
SNOMED_CT 285424002high
IgG monoclonal gammopathy of uncertain significance
Source: SNOMED International ICD-10 map
SNOMED_CT 285426000high
IgM monoclonal gammopathy of uncertain significance
Source: SNOMED International ICD-10 map
SNOMED_CT 285430002high
Light chain monoclonal gammopathy of uncertain significance
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
D47.2
Common synonyms
Monoclonal gammopathy
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.