Monoclonal Gammopathy of Undetermined Significance (MGUS): VA Presumptive Condition (Agent Orange)
VeteranHQ lists Monoclonal Gammopathy of Undetermined Significance (MGUS) as a presumptive condition in the Agent Orange and Other Herbicides group. The exposure it is tied to is: Herbicide Agent (Agent Orange/TCDD). The presumption is effective August 10, 2022. It is governed by 38 CFR § 3.309(e); PACT Act of 2022 (Public Law 117-168).
A presumption removes one requirement and one only: the veteran does not have to prove a medical link between the condition and service. Everything else still applies. There must be a current diagnosis, the service has to meet the requirements below, and VA decides the claim on the evidence in the record.
What qualifies: Monoclonal Gammopathy of Undetermined Significance (MGUS)
- Service era
- Vietnam Era (August 5, 1964 – May 7, 1975); Korean DMZ; Thailand
- Service location
- Republic of Vietnam, Thailand (specified bases), Korean DMZ, Johnston Island
- Exposure
- Herbicide Agent (Agent Orange/TCDD)
- Effective date
- August 10, 2022
- Filing deadline
- No statutory deadline for Agent Orange presumptives
- Diagnostic code
- 7709
Service required for this presumption
Service in the Republic of Vietnam between January 9, 1962, and May 7, 1975, or other qualifying herbicide exposure locations. No minimum service duration required.
About this presumption
MGUS (Monoclonal Gammopathy of Undetermined Significance) is a pre-cancerous blood plasma condition recognized as presumptive for veterans exposed to Agent Orange/tactical herbicides under the PACT Act of 2022. MGUS is characterized by a small monoclonal immunoglobulin protein (M-protein) in the blood produced by abnormal plasma cells, without meeting criteria for multiple myeloma, Waldenström macroglobulinemia, or other plasma cell dyscrasias. MGUS can progress to multiple myeloma, lymphoma, or other blood cancers at a rate of approximately 1% per year. Veterans with MGUS should undergo regular surveillance (SPEP, CBC, creatinine, calcium) and be monitored for progression. VA rates MGUS analogously to multiple myeloma (DC 7709) based on functional impairment.
Evidence still needed
A presumption does not remove the evidence requirement. VA still needs a current diagnosis from a medical provider and service records that show the qualifying service above. What it removes is the medical opinion connecting the two.
Service records confirming qualifying herbicide exposure location; serum protein electrophoresis (SPEP) showing M-protein spike; immunofixation electrophoresis confirming monoclonal immunoglobulin type; serum free light chain ratio; bone marrow biopsy showing <10% plasma cells (to exclude myeloma); CBC, creatinine, and calcium within normal limits; hematologist records with MGUS risk stratification.
Controlling legal authority
38 CFR § 3.309(e); PACT Act of 2022 (Public Law 117-168)
Related on VeteranHQ
- Hodgkin's lymphoma: 38 CFR Part 4 rating criteriaThe percentage tiers VA applies once service connection is established, under DC 7709.
- VA presumptive conditions, explainedHow presumptive service connection works, and what it does not cover.
- All presumptive conditions by exposureAgent Orange, PACT Act, Camp Lejeune, Gulf War, and ionizing radiation.
Questions About Monoclonal Gammopathy of Undetermined Significance (MGUS) and Presumptive Service Connection
Is Monoclonal Gammopathy of Undetermined Significance (MGUS) a VA presumptive condition?
Yes. VeteranHQ lists Monoclonal Gammopathy of Undetermined Significance (MGUS) as presumptive in the Agent Orange and Other Herbicides group, effective August 10, 2022, under 38 CFR § 3.309(e); PACT Act of 2022 (Public Law 117-168). A presumption removes the requirement to prove a medical link to service. A current diagnosis and qualifying service are still required, and VA decides the claim.
What service qualifies for the Monoclonal Gammopathy of Undetermined Significance (MGUS) presumption?
Service in the Republic of Vietnam between January 9, 1962, and May 7, 1975, or other qualifying herbicide exposure locations. No minimum service duration required. Service era: Vietnam Era (August 5, 1964 – May 7, 1975); Korean DMZ; Thailand. Service location: Republic of Vietnam, Thailand (specified bases), Korean DMZ, Johnston Island.
What evidence is still needed for a Monoclonal Gammopathy of Undetermined Significance (MGUS) claim?
Service records confirming qualifying herbicide exposure location; serum protein electrophoresis (SPEP) showing M-protein spike; immunofixation electrophoresis confirming monoclonal immunoglobulin type; serum free light chain ratio; bone marrow biopsy showing <10% plasma cells (to exclude myeloma); CBC, creatinine, and calcium within normal limits; hematologist records with MGUS risk stratification. A presumption removes the requirement to prove a medical link to service. A current diagnosis and qualifying service are still required, and VA decides the claim.
Is there a filing deadline for Monoclonal Gammopathy of Undetermined Significance (MGUS)?
No statutory deadline for Agent Orange presumptives
VeteranHQ publishes VA rules and the citations behind them. It does not prepare, file, or represent claims, and nothing here is legal advice or a prediction of what VA will decide.