VA Diabetes Claims: DC 7913 Ratings and Service Connection

What the VA Counts as Diabetes mellitus

For VA purposes, diabetes mellitus is rated under 38 CFR 4.119, the endocrine section, at diagnostic code 7913. Diabetes is a condition in which the body cannot properly control blood sugar (glucose), either because it does not make enough insulin or because the body resists the insulin it does make. The VA rates the disease the same way under one table whether it is type 1 (usually requiring insulin from the start) or type 2 (often managed first by diet and oral medication). What matters for the rating is the treatment your condition requires, not the type label.

How the Diabetes Rating Works: Insulin, Diet, and "Regulation of Activities"

The DC 7913 ladder is built from a short list of treatment elements. Understanding each one explains why a claim stops at one level instead of advancing to the next.

• Restricted diet: a medically directed diet to control blood sugar. Diet alone, with no medication, is the 10% level.
• Oral hypoglycemic agent: a pill (such as metformin) taken to lower blood sugar. An oral agent plus restricted diet is one of the two ways to reach 20%.
• Insulin: injected insulin. One or more daily injections plus restricted diet is the other way to reach 20%.
• Regulation of activities: the regulation defines this as "avoidance of strenuous occupational and recreational activities." This is the element that separates 20% from 40%, and it is the single most important phrase in the whole rating.
• Episodes, hospitalizations, and provider visits: documented episodes of ketoacidosis (a dangerous buildup of acids in the blood, also called DKA) or hypoglycemic reactions (blood sugar dropping too low), counted by how many hospitalizations per year or how often you see a diabetic care provider. These drive the 60% and 100% levels.
• Progressive loss of weight and strength, or compensable complications: additional criteria that, combined with the above, reach 100%.

This is also where the Endocrine DBQ matters (covered in the rating mechanics here so you do not need a separate page). The controlling exam form is the Endocrine DBQ, Diabetes Mellitus (VA Form 21-0960E-1). It asks the examiner to record the treatment regimen (diet, oral agents, number of daily insulin injections), whether activities are regulated, the frequency of ketoacidosis and hypoglycemic episodes, hospitalizations and provider-visit frequency, weight and strength changes, and the presence of complications. A form that confirms insulin but is silent on "regulation of activities" leaves the 40% threshold unmet on its face.

DC 7913 Rating Levels

The full schedule entry is "diabetes mellitus" under 38 CFR 4.119. The criteria below are reproduced verbatim from the regulation. Each level builds on the one below it, so the higher levels require everything in the lower level plus more.

The two thresholds that decide most diabetes ratings are the jump from 20% to 40% (which requires documented "regulation of activities"), and the jump from 40% to 60% or 100% (which requires documented episodes of ketoacidosis or hypoglycemia counted by hospitalizations or provider visits). The table below summarizes the treatment elements at each level.

Notes from the regulation:

• Note (1): Evaluate compensable complications of diabetes separately unless they are part of the criteria used to support a 100-percent evaluation. Noncompensable complications are considered part of the diabetic process under DC 7913.
• Note (2): When diabetes mellitus has been conclusively diagnosed, do not request a glucose tolerance test solely for rating purposes.

How Diabetes mellitus Gets Service Connected

Agent Orange presumptive (type 2 diabetes)

This is by far the most common winning route for diabetes. Type 2 diabetes (the regulation calls it "Diabetes mellitus type 2") is on the VA's Agent Orange presumptive list under 38 CFR 3.309(e). A veteran who has type 2 diabetes and qualifying herbicide-exposure service does not have to prove a medical nexus to service. Exposure and the diagnosis are presumed connected. See the Agent Orange presumptive page for the qualifying locations and the full condition list.

Qualifying service includes the Republic of Vietnam, its inland waterways, and ships operating within 12 nautical miles of the Vietnam and Cambodia demarcation line (January 9, 1962 to May 7, 1975), and the Korean demilitarized zone (September 1, 1967 to August 31, 1971). The PACT Act expanded the qualifying herbicide locations to also include:

• Thailand: any U.S. or Royal Thai military base (January 9, 1962 to June 30, 1976).
• Laos: December 1, 1965 to September 30, 1969.
• Cambodia: at Mimot or Krek, Kampong Cham Province (April 16 to April 30, 1969).
• Guam or American Samoa and their territorial waters (January 9, 1962 to July 31, 1980).
• Johnston Atoll or a ship that called there (January 1, 1972 to September 30, 1977).

Direct service connection

Where the presumptive does not apply (for example, type 1 diabetes, or service that does not fall within a qualifying herbicide location and date), direct service connection requires three things: a current diabetes diagnosis, an in-service event, exposure, or onset, and a medical nexus linking the two. In the published BVA diabetes record, lack of a nexus was the dominant dispositive denial reason, which is covered in the evidence section below.

1-year chronic-disease presumptive (38 CFR 3.309(a))

Diabetes mellitus is also listed as a chronic disease under 38 CFR 3.309(a). If diabetes is shown to a compensable degree (10% or more) within one year of separation from active duty, service connection can be presumed without proof of a specific in-service event. See the presumptive check tool.

Diabetes as a secondary condition (less common direction)

Veterans sometimes argue that diabetes itself was caused or aggravated by another service-connected condition under 38 CFR 3.310. The published Board record shows this is a weaker direction overall: diabetes claimed as secondary to sleep apnea appears at a 73% grant rate but on a small sample (n = 120), while diabetes secondary to PTSD (about 45%) or to hypertension (about 31%) is weaker. The high-value direction is the opposite one, diabetes as the primary that feeds downstream secondary claims, covered next.

Common Secondary Conditions

Secondary connection runs in two directions, and for diabetes the two directions look very different in the published Board record.

What diabetes causes (diabetes as the primary)

This is the strong direction. Long-term high blood sugar damages nerves, kidneys, eyes, and blood vessels, so a long list of conditions are commonly claimed as caused or aggravated by service-connected diabetes. Each bar is the published BVA grant rate for that condition claimed secondary to diabetes, with the number of decisions below it:

Diabetic retinopathy (eye disease) is another recognized complication that is rated under the eye section when present. These complications are what make Note (1) so important: when they are compensable, they are rated separately and combined, often adding far more than the diabetes code by itself.

What can cause diabetes (diabetes as the secondary)

The reverse direction is weaker, as noted in the service-connection section: the published record shows diabetes argued as secondary to sleep apnea (about 73%, n = 120), PTSD (about 45%), or hypertension (about 31%). Most of these are small samples or low grant rates compared with the presumptive route, which is why most diabetes service connection runs through Agent Orange rather than through a secondary theory.

Pyramiding and Rating Separately

The VA's pyramiding rule prevents paying twice for the same symptoms. For diabetes, the key interaction is built right into 38 CFR 4.119, Note (1), and it works in the veteran's favor: compensable complications of diabetes are rated separately from the base DC 7913 rating and then combined under 38 CFR 4.25 (the combined-ratings table), not simply added.

So a veteran can hold a DC 7913 rating for the diabetes itself plus separate ratings for, for example, peripheral neuropathy of each affected limb (DC 8520 or the 8305 family), diabetic nephropathy (DC 7541), diabetic retinopathy, ischemic heart disease, and erectile dysfunction (DC 7522). These are distinct disabilities affecting distinct body functions, so rating them separately is not pyramiding.

Evidence That Wins These Claims

The figures below are grant rates from published BVA diabetes decisions, paired with how the data is measured and the sample size. They describe what the Board's record shows, not a prediction about any individual claim.

• A private nexus opinion (where the presumptive does not apply): Approx. 75.8% of diabetes appeals were granted when a private nexus opinion was in the file, versus 40.3% without it (published BVA decisions, n = 1,688 with / 9,611 without). The lift is smaller here than for many conditions because most diabetes grants run through the Agent Orange presumption, which already removes the nexus requirement.
• Nexus letter as an evidence type: In BVA diabetes decisions that cited a nexus letter, approx. 50% were granted (n = 4,105), the clear standout, compared with approx. 26% when service treatment records were cited (n = 21,225). A nexus letter roughly doubled the grant rate over service treatment records alone.
• Medical literature: approx. 42% of diabetes decisions citing supporting medical literature were granted (published BVA decisions, n = 1,816).
• Proof of the treatment regimen: documentation of insulin (and the number of daily injections), oral hypoglycemic agents, and restricted diet sets which rating level is even reachable.
• Documentation of "regulation of activities": medical evidence that a provider prescribed avoidance of strenuous activity (the Camacho standard) is what allows a 20% rating to reach 40% or higher.
• Records of episodes, hospitalizations, and visits: counts of ketoacidosis and hypoglycemic episodes, hospitalizations per year, and diabetic-care-provider visit frequency drive the 60% and 100% levels, along with weight and strength history.
• Complication work-ups: a dilated eye exam (retinopathy), urinalysis with microalbumin and eGFR (nephropathy, DC 7541), a peripheral-neuropathy exam or EMG/NCS nerve study (DCs 8520-8730), and cardiac evaluation each support separate ratings under Note (1).

Common Mistakes

• Treating the rating as automatic once on insulin: the 40%, 60%, and 100% levels all require medically-documented "regulation of activities." Under Camacho v. Nicholson this element cannot be inferred from a restricted diet or insulin alone, and its absence is the most common reason a 20% rating does not advance to 40%.
• Leaving complications unclaimed: under Note (1), diabetic peripheral neuropathy (DCs 8520-8730), nephropathy (DC 7541), retinopathy, and ischemic heart disease are rated separately and combined, often worth far more than the diabetes code itself. Many veterans never claim them.
• Assuming presumptive exposure is automatic: a veteran whose service does not fall within the listed Vietnam, Thailand, Laos, Cambodia, Guam, American Samoa, Johnston Atoll, or Korean DMZ windows still has to prove direct service connection, including a nexus.
• Omitting a private nexus opinion on a direct claim: the Board record shows "no nexus" is the number-one dispositive denial reason for diabetes claims, and a private nexus opinion roughly doubled the measured grant rate when the presumptive did not apply.
• Misreading the value of erectile dysfunction: ED secondary to diabetes is rated 0% schedular under the current DC 7522, so a veteran expecting a percentage is often surprised. The actual compensation is the flat-rate SMC-K add-on, which is screened for separately (see the FAQ).
• Relying on a glucose tolerance test for rating: contrary to Note (2), a tolerance test is not ordered solely for rating once diabetes is diagnosed. The rating turns on treatment, episodes, hospitalizations and visits, weight and strength, and complications.

Frequently Asked Questions