The Board has granted service connection for chronic myelomonocytic leukemia (CMML) due to exposure to herbicide agents during active duty in Thailand, finding that the evidence is at least in equipoise as to whether the Veteran had duty assignments near the base perimeter and was exposed to herbicide agents. The medical opinions support a direct link between the Veteran's in-service exposure to herbicide agents and his diagnosis of CMML.
The deciding factor: The Board found sufficient scientific and medical evidence to etiologically link the Veteran’s CMML to exposure to herbicide agents while serving in Thailand, granting service connection on a presumptive basis for Agent Orange exposure.
- Claimed conditions
- chronic myelomonocytic leukemia (CMML)
- How they argued it
- Presumptive (no nexus needed)
- Exposure basis
- Agent Orange / herbicides
- Rating assigned
- None in this decision
- Decision date
- November 9, 2020
- Citation
- A20016658
This is a plain-language summary generated by AI from a public Board of Veterans’ Appeals decision. It can contain errors — always verify against the original. Look up the original decision on VA.gov (opens in a new tab) using citation A20016658.
What this means for you
A grant means the Board agreed the veteran was entitled to the benefit. Decisions like this show the kind of evidence and arguments that tend to succeed for claims like it.
What you can do next
Related decisions
Other Board decisions on a similar condition or argued the same way.
- Granted
The Veteran's kidney disorder and CMML are granted service connection, with a 100% rating for CMML effective July 1, 2025. Service connection is also granted for hypothyroidism.
- Granted
The Veteran's kidney disorder and CMML are granted service connection, with a 100% rating for CMML effective July 1, 2025. Service connection is also granted for hypothyroidism.
- Granted
The Veteran's kidney disorder and CMML have been granted service connection, and the rating for CMML has been restored. The Board also found that there is some persuasive evidence linking the Veteran's hypothyroidism to his military service.
- Granted
The Veteran's kidney disorder and CMML are granted service connection, with a 100% rating for CMML effective July 1, 2025. Service connection is also granted for hypothyroidism.
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