1. What This Condition Is
Type 2 diabetes mellitus is a chronic metabolic disease in which the body either does not produce enough insulin or does not use it effectively, causing elevated blood glucose over time. Left unmanaged, it damages blood vessels, kidneys, nerves, eyes, and the cardiovascular system.
For Vietnam-era veterans and others with qualifying service, the VA presumes Type 2 diabetes is caused by Agent Orange exposure. You do not need to prove you were sprayed or that you touched a barrel. You need a current diagnosis and documented service in a qualifying location. That is the entire case.
For veterans without Agent Orange exposure, service connection requires the standard three elements: a current diagnosis, an in-service event or exposure, and a nexus linking the two.
2. VA Rating Criteria
Type 2 diabetes is rated under Diagnostic Code 7913, 38 CFR § 4.119.
Agent Orange Presumptive Status: Under 38 CFR § 3.309(e), Type 2 diabetes mellitus is a presumptive condition for veterans with qualifying Agent Orange exposure. Qualifying service locations include Vietnam (January 9, 1962 through May 7, 1975), the Korean DMZ (September 1, 1967 through August 31, 1971), certain Royal Thai Air Force bases, C-123 aircraft crews, and others. The VA presumes the nexus if you served in one of these locations and have a current Type 2 diabetes diagnosis.
The VA does not rate by A1C numbers. It rates by treatment intensity and how much the condition limits your activities.
| Rating | Criteria |
|---|---|
| 10% | Manageable by restricted diet only |
| 20% | Requires insulin and restricted diet, OR oral hypoglycemic agent and restricted diet |
| 40% | Requires insulin, restricted diet, and regulation of activities |
| 60% | Requires insulin, restricted diet, and regulation of activities, with episodes of ketoacidosis or hypoglycemic reactions requiring one or two hospitalizations per year, OR twice-monthly visits to a diabetic care provider |
| 100% | Requires more than one daily injection of insulin, restricted diet, and regulation of activities, with episodes of ketoacidosis or hypoglycemic reactions requiring at least three hospitalizations per year or weekly visits to a diabetic care provider, PLUS progressive loss of weight and strength or complications separately compensable if evaluated separately |
Note: Diabetic complications (neuropathy, retinopathy, nephropathy, cardiovascular disease) are rated separately and combined with the diabetes rating.
3. What to Expect at Your C&P Exam
The examiner will review your treatment history and current management plan. Expect questions about what medications you take and how often, whether you inject insulin and how many times per day, how often you see your diabetes care provider, whether you have had hypoglycemic episodes or hospitalizations, and whether your doctor has placed any restrictions on your physical activity.
Bring documentation of every hospitalization, ER visit, and hypoglycemic episode from the last two years. If your endocrinologist has restricted you from certain activities, bring a letter stating that restriction.
The examiner is specifically looking at the treatment tier and activity restrictions. If you are on oral medication only, you are looking at a 20% rating. If you are on insulin with activity restrictions and hospitalizations, document every one of those events.
4. Evidence You Need to Win
For Agent Orange presumptives: You need two things. First, a current diagnosis of Type 2 diabetes mellitus from a licensed medical provider. Second, proof that you served in a qualifying location. Your DD-214 typically establishes Vietnam service. For Korean DMZ or Thai base service, you may need to request records through the National Personnel Records Center.
You do not need a nexus letter for presumptive claims. The law creates the nexus automatically under 38 CFR § 3.309(e).
For non-presumptive claims: You need a current diagnosis, in-service evidence of elevated blood glucose, exposure to a chemical or stressor (such as Agent Orange outside the presumptive window, or other documented exposures under the PACT Act), and a nexus letter from a treating provider.
DBQ: Request that the C&P examiner complete the Diabetes Mellitus DBQ. Get the current version at va.gov/find-forms.
Treatment records: Your entire endocrinology treatment history, medication list, lab values, hospitalization records, and any specialist notes documenting activity restrictions are foundational.
Personal statement: Document every hypoglycemic episode, every ER visit, every restriction your doctor has placed on your activities. Dates matter.
5. Secondary Conditions to Consider
Peripheral neuropathy: Diabetic neuropathy is one of the most common complications, affecting the feet, legs, and hands. File for each affected extremity separately under 38 CFR § 3.310. Each extremity is rated independently.
Diabetic retinopathy: Damage to blood vessels in the retina leads to vision loss. File secondary to diabetes with ophthalmology records documenting the diagnosis and its progression.
Diabetic nephropathy (kidney disease): Chronic kidney disease secondary to diabetes is ratable and can qualify for Special Monthly Compensation (SMC) at higher severity levels.
Erectile dysfunction: Secondary to diabetes through documented vascular and neurological damage. File under DC 7522 with a treating provider's nexus statement.
Ischemic heart disease: Diabetes dramatically increases cardiovascular risk. If you develop coronary artery disease, file for it secondary to diabetes in addition to any Agent Orange presumptive claim.
Hypertension: Insulin resistance and Type 2 diabetes are directly linked to elevated blood pressure through metabolic pathways. Secondary service connection is viable with a treating provider's IMO.
6. Common Mistakes That Kill Claims
Not documenting hospitalizations. The jump from 20% to 60% depends on hospitalizations or twice-monthly provider visits. If you have had these events but they are not in your records, pull every ER record, inpatient summary, and provider note before you file.
Filing only for the diabetes and ignoring secondary conditions. Diabetes is a systemic disease. Neuropathy, retinopathy, nephropathy, and cardiovascular complications are separately ratable. Most veterans leave significant ratings on the table by not filing for the downstream damage.
Assuming the VA will see the A1C and rate accordingly. They will not. A1C is not in the rating criteria. Treatment intensity and activity restrictions determine your rating, not lab values.
Failing to establish qualifying service for Agent Orange. If you served in Vietnam, the Korean DMZ, or a qualifying Thai base and did not claim Agent Orange presumptive status, you may have a viable claim even if you were denied before. File a Supplemental Claim with your service location documented.
Missing the PACT Act expansion. The PACT Act extended Agent Orange presumptive coverage and added new exposure categories. If you were previously denied, review the updated presumptive list and consider a Supplemental Claim under VA Form 21-0995.
7. FWD Assist Resources
The following FWD Assist HQ books apply directly to a Type 2 diabetes claim:
- The PACT Act Veteran's Guide -- Covers the expanded presumptive lists, qualifying service locations, and how to file or refile under the new law.
- Secondary Conditions: The Hidden Ratings Most Veterans Miss -- Walks through every downstream condition from diabetes and how to build secondary claims for neuropathy, nephropathy, retinopathy, and cardiovascular disease.
- The C&P Exam Playbook -- Prepares you to document treatment intensity and activity restrictions accurately at your examination.
- Nexus Letters: The Veteran's Complete Guide -- Covers how to get a nexus letter for secondary conditions even when the primary diabetes claim is presumptive.
- The VA Appeals Playbook -- If you were denied or received a low rating before the PACT Act, this covers your path to a Supplemental Claim or higher-level review.
Visit fwdassisthq.com for the full catalog.
8. Get Help Without a Claim Shark
Free accredited help is available through VSOs including the DAV, VFW, American Legion, and AMVETS. Your county veterans service office can assist at no charge.
Under 38 USC 5905, charging upfront fees before an initial VA decision is a federal violation. Accredited attorneys and claims agents may charge fees only after an initial decision, capped at 20% of past-due benefits recovered.
Verify accreditation at va.gov/ogc/accreditation.asp before working with any paid representative.
FWD Assist HQ provides education, not representation. For active claims, work with an accredited representative.