How to Claim VA Disability for Diabetes: Ratings, TDIU, and Evidence

To claim VA disability for diabetes, you file VA Form 21-526EZ with three things in hand: a current diabetes diagnosis, evidence connecting the condition to your military service, and medical documentation of how the disease affects your daily treatment. Type 2 diabetes has the smoothest path because the VA presumes it is service-connected for veterans exposed to Agent Orange and other herbicides. Type 1 diabetes and Type 2 cases without herbicide exposure can still be approved, but they need stronger evidence of a service link. Monthly tax-free compensation runs from $180.42 at a 10% rating up to $3,938.58 at 100%.

Confirm You Meet the Basic Eligibility

Three baseline requirements have to be met before the VA will look at the merits of a diabetes claim. You must have served on active duty, active duty for training, or inactive duty training. Your discharge must be under conditions other than dishonorable, which includes honorable discharges and general discharges under honorable conditions. And you need a current diagnosis of diabetes from a medical professional.1Veterans Affairs. Eligibility for VA Disability Benefits Missing any of the three ends the claim before it starts.

Establish the Service Connection

A diagnosis by itself is not enough. The VA needs a link between your diabetes and your service, and there are four ways to establish it.

Presumptive Connection Through Herbicide Exposure

This is where most successful diabetes claims are made. Under 38 CFR 3.309(e), Type 2 diabetes is a presumptive condition for veterans exposed to herbicide agents during active service.2eCFR. 38 CFR 3.309 – Disease Subject to Presumptive Service Connection Presumptive means you do not have to prove the herbicide actually caused your diabetes. You only have to show you served in a qualifying place during the covered dates and that you have a Type 2 diagnosis today.

Qualifying service includes:

  • Vietnam, including coastal waters within 12 nautical miles, from January 9, 1962 through May 7, 1975
  • Thailand, at any U.S. or Royal Thai military base, from January 9, 1962 through June 30, 1976
  • The Korean DMZ from September 1, 1967 through August 31, 1971
  • Laos from December 1, 1965 through September 30, 1969
  • Cambodia (Mimot or Krek, Kampong Cham Province) from April 16, 1969 through April 30, 1969
  • Guam or American Samoa, including territorial waters, from January 9, 1962 through July 31, 1980
  • Johnston Atoll, or ships that called there, from January 1, 1972 through September 30, 1977

Several of these locations were added by the PACT Act, signed in 2022, including Thailand, Laos, Cambodia, Guam, American Samoa, and Johnston Atoll.3Veterans Affairs. The PACT Act and Your VA Benefits Air Force or Air Force Reserve members who regularly operated, maintained, or served onboard C-123 aircraft used to spray herbicides during the Vietnam era also qualify.

The presumption is limited to Type 2. Type 1 diabetes is not on the presumptive list.

Direct Service Connection

Direct service connection applies when your diabetes started during active duty or resulted from a specific event or condition during service. Medical records showing a diagnosis while on active duty make a strong case. This pathway is available for both Type 1 and Type 2 diabetes, but you need medical evidence tying the onset to your service.1Veterans Affairs. Eligibility for VA Disability Benefits

Secondary Service Connection

If diabetes developed because of another condition that is already service-connected, you can claim it as a secondary disability. Under 38 CFR 3.310, a disability caused by or resulting from a service-connected condition is itself eligible for service connection.4eCFR. 38 CFR 3.310 – Disabilities That Are Proximately Due to, or Aggravated by, Service-Connected Disease or Injury A service-connected pancreatitis that led to diabetes is a common example. A medical opinion connecting the two conditions is critical.

Aggravation of Pre-Existing Diabetes

Veterans who already had diabetes before service can still qualify if military service made it worse beyond its expected progression. Under 38 CFR 3.306, when a pre-existing condition worsens during service, the VA presumes service caused the aggravation, and it can only deny the claim with clear and unmistakable evidence that the worsening was the natural course of the disease.5eCFR. 38 CFR 3.306 – Aggravation of Preservice Disability That standard works in your favor.

Know Which Rating You Should Get

Once service connection is established, the VA assigns a disability rating based on how severely diabetes affects your daily life. Diabetes is rated under Diagnostic Code 7913, and the criteria turn on what your treatment actually requires.6eCFR. Schedule of Ratings – Endocrine System The 2026 rates below, effective December 1, 2025, are for a veteran with no dependents; ratings of 30% and above pay more when you have a spouse, children, or dependent parents.7U.S. Department of Veterans Affairs. Current Veterans Disability Compensation Rates

  • 10% ($180.42/month): manageable by restricted diet only
  • 20% ($356.66/month): daily insulin injections and restricted diet, or oral medication and restricted diet
  • 40% ($795.84/month): daily insulin, restricted diet, and regulation of activities
  • 60% ($1,435.02/month): everything for 40%, plus episodes of ketoacidosis or severe hypoglycemia requiring one or two hospitalizations per year or twice-monthly visits to a diabetic care provider, with complications that do not qualify for their own separate rating
  • 100% ($3,938.58/month): more than one daily insulin injection, restricted diet, and regulation of activities, plus ketoacidosis or severe hypoglycemia requiring at least three hospitalizations per year or weekly diabetic care visits, along with progressive weight loss and loss of strength or complications severe enough to rate separately

The jump from 20% to 40% is where claims most often get stuck. “Regulation of activities” means a doctor has specifically instructed you to limit physical exertion to prevent hypoglycemic episodes. General advice to eat better or exercise more does not count. The VA’s Diabetes Mellitus Disability Benefits Questionnaire asks the examining physician to document whether regulation of activities is medically required and to give specific examples.8Department of Veterans Affairs (VA). Diabetes Mellitus Disability Benefits Questionnaire Without that documentation, 40% is hard to reach.

Claim Your Complications Separately

Diabetes rarely shows up alone. Compensable complications are rated separately from the diabetes rating itself, which can meaningfully increase your total monthly payment. Complications too mild for their own rating are folded into the diabetes evaluation.6eCFR. Schedule of Ratings – Endocrine System

Common secondary conditions include peripheral neuropathy in the hands and feet (each extremity rated on its own, so bilateral involvement can yield four separate ratings), diabetic retinopathy, chronic kidney disease, cardiovascular conditions like hypertension and coronary artery disease, and erectile dysfunction. If you already have a service-connected diabetes rating and develop any of these, file a secondary service-connection claim for each one.4eCFR. 38 CFR 3.310 – Disabilities That Are Proximately Due to, or Aggravated by, Service-Connected Disease or Injury

One thing to understand about the math: the VA does not add ratings together. It applies each successive rating to the remaining non-disabled percentage. A 40% diabetes rating combined with a 30% neuropathy rating comes out to 58%, rounded to 60%, not 70%.9Veterans Affairs. About Disability Ratings Each additional rating still adds compensation; it just adds less than a straight sum would suggest.

Consider TDIU If Diabetes Keeps You From Working

Some veterans have diabetes and complications serious enough that they cannot hold a steady job, yet their combined schedular rating falls short of 100%. Total Disability Based on Individual Unemployability (TDIU) pays at the 100% rate, $3,938.58 per month in 2026, even when the schedular total is lower.10Veterans Affairs. Individual Unemployability If You Can’t Work

You qualify if you cannot maintain substantially gainful employment because of your service-connected disabilities and you meet one of these thresholds:

  • At least one service-connected disability rated 60% or higher, or
  • Two or more service-connected disabilities with at least one rated 40% or higher and a combined rating of 70% or higher

If diabetes complications are keeping you out of work, raise TDIU when you file rather than waiting to be told it’s an option.

Build the Evidence Before You File

The strength of a diabetes claim comes down to documentation. Even legitimate claims fail on thin paperwork.

Your medical records should clearly show the diagnosis, severity, and treatment regimen, including whether you use insulin, oral medication, or diet alone. For any claim not based on the herbicide presumption, a nexus letter from a qualified medical professional explicitly linking your diabetes to service, or to another service-connected condition, is often the most important single document.

The VA’s Diabetes Mellitus DBQ is the form that captures exactly what the rating criteria ask about: insulin frequency, whether regulation of activities is medically required, how often you see a diabetic care provider, hospitalizations for ketoacidosis or hypoglycemia, and which complications are present.8Department of Veterans Affairs (VA). Diabetes Mellitus Disability Benefits Questionnaire Having your own physician complete a DBQ before you file gives the rater the medical detail needed to assign the correct percentage.

Service records verify dates, duty stations, and assignments, which become decisive for herbicide-presumption claims. Where official records are incomplete, lay statements from fellow service members, family, or friends can describe symptoms they witnessed or confirm where you were stationed.

File the Claim

You file using VA Form 21-526EZ. The online application at VA.gov walks through each section and lets you upload documents directly.11U.S. Department of Veterans Affairs. File for Disability Compensation With VA Form 21-526EZ A paper application by mail is also available.

Before you send in the completed claim, file an intent to file using VA Form 21-0966. That locks in a potential effective date for your benefits, so if the claim is later approved, retroactive payments can go back to the date the VA processed the intent to file rather than the date you finished the full application. You then have a year to file the actual claim.12Veterans Affairs – VA.gov. Your Intent to File a VA Claim Even a few months of back pay at 20% is worth more than a thousand dollars.

Veterans Service Organizations have accredited representatives who help with claims at no cost. They can review your evidence, identify weaknesses before submission, and make sure the application is complete. For a diabetes claim with multiple secondary conditions, the order and framing of what you file matter, and a VSO representative who has handled diabetes cases before knows the common mistakes.

What Happens After You File

The VA reviews your records and gathers additional evidence if needed. You may be scheduled for a Compensation and Pension (C&P) exam, which assesses both severity and the service connection. Not every claim requires one; if your existing records contain enough evidence, the VA can decide without an exam.13Veterans Affairs. VA Claim Exam (C&P Exam)

Do not skip a scheduled C&P exam. Missing it usually means the claim is decided on incomplete evidence, which typically means a lower rating or a denial. The examiner works from the criteria in Diagnostic Code 7913, and knowing what each rating level requires helps you describe your condition accurately.

When the review is complete, the VA sends a decision letter stating whether the claim was approved, the assigned rating, and the effective date, which determines when payments start and how much retroactive pay you receive.14Veterans Affairs. The VA Claim Process After You File Your Claim

If the Claim Is Denied or Underrated

A denial or a lower rating than expected is not the end. You have one year from the date of the decision letter to choose one of three review options.15Veterans Affairs. VA Decision Reviews and Appeals

  • Supplemental Claim: you submit new and relevant evidence the VA did not have before. This is often the right choice when the original claim lacked a nexus letter or a DBQ and you have since obtained one.
  • Higher-Level Review: a more senior reviewer looks at the same evidence for errors. No new evidence is allowed, so this fits cases where the original decision misapplied the criteria or overlooked existing records.
  • Board Appeal: a Veterans Law Judge at the Board of Veterans’ Appeals reviews the case. You can request a hearing, submit new evidence, or both. It takes longer but is the most thorough review.

Missing the one-year deadline makes the decision final, though you can still file a new Supplemental Claim later; you just lose the ability to preserve the original effective date. For diabetes claims, the most common reason for denial is insufficient evidence linking the condition to service. If a presumptive claim was denied because the VA could not confirm qualifying service, additional service records or buddy statements filed with a Supplemental Claim are usually the most direct path to approval.