Diabetes is a top-5 VA disability claim — and how you prepare for your C&P exam directly determines your rating. This guide walks you through exactly what the examiner tests, what to bring, how DC 7913 ratings are calculated, and which complications could add thousands to your monthly benefit.
Your VA C&P (Compensation and Pension) exam for diabetes is not a routine doctor's visit. It is a structured evaluation where a VA examiner works through a specific checklist — the Diabetes Mellitus DBQ — to determine how your condition should be rated under 38 CFR § 4.119, Diagnostic Code 7913. Every answer you give, every piece of documentation you bring, and every complication you report feeds directly into a rating decision worth hundreds or thousands of dollars per month.
Veterans who walk in unprepared often receive 10% ratings when they qualify for 40% or 60%. The difference between a 10% rating ($175.51/month) and a 60% rating ($1,395.93/month) is more than $14,000 per year in tax-free compensation. That gap exists entirely because of what was — or wasn't — documented at the C&P exam.
This guide gives you the complete preparation playbook: what the examiner looks for, what documentation to bring, how to describe your condition accurately, and which complications you need to be claiming in parallel.
The VA rates diabetes mellitus under Diagnostic Code 7913 in 38 CFR § 4.119. Unlike conditions rated by a single measurement, diabetes is rated on a combination of management requirements, regulation difficulty, and complication burden. There are five rating levels:
| Rating | Criteria Under DC 7913 | Monthly Pay (2026) |
|---|---|---|
| 10% | Manageable by restricted diet only | $175.51 |
| 20% | Requires insulin or oral hypoglycemic medication AND restricted diet; with at least one documented episode of ketoacidosis or hypoglycemic reaction requiring hospitalization in the past year, OR at least two such episodes not requiring hospitalization | $346.95 |
| 40% | Requires insulin AND restricted diet; OR oral hypoglycemic agent AND restricted diet, with episodes of ketoacidosis or hypoglycemic reaction requiring hospitalization or twice-monthly care provider visits | $774.16 |
| 60% | Requires insulin AND restricted diet AND regulation of activities; OR requires insulin AND diet but is otherwise uncontrolled despite treatment | $1,395.93 |
| 100% | Requires more than one daily insulin injection, restricted diet, and regulation of activities to avoid strenuous occupational and recreational exertion — with episodes of ketoacidosis or hypoglycemic reactions requiring one or two hospitalizations per year or twice-monthly diabetic care provider visits | $3,737.85 |
Every tier above 10% depends on three factors the examiner must confirm in writing:
If you meet all three AND have documented hospitalizations or twice-monthly provider visits, you are at the 100% threshold. Document each one explicitly at your exam — do not assume the examiner already knows.
The C&P examiner works from the VA Diabetes Mellitus DBQ (Disability Benefits Questionnaire). This form guides every question they ask and every physical test they perform. Understanding the DBQ structure lets you anticipate exactly what information you need to provide.
The first major DBQ section covers your treatment regimen — the three factors that determine your rating tier. The examiner will ask about insulin: Are you currently prescribed insulin? If yes, what types (basal, bolus, combination) and how many injections per day? Do you take oral hypoglycemic agents (metformin, glipizide, sitagliptin) or GLP-1 agonists (Ozempic/semaglutide, Victoza/liraglutide)? Has your regimen escalated in the past year?
They will also ask whether your physician has placed you on a restricted diet as part of your treatment plan — not a diet you chose voluntarily. This is a required element for ratings above 10%. Confirm clearly: "Yes, I follow a carbohydrate-restricted diet as directed by my endocrinologist/PCP." Finally, for the 60% threshold, the examiner must document regulation of activities — whether your physician has restricted strenuous occupational or recreational activity. If your doctor told you to avoid heavy lifting, intense cardio, or physically demanding work due to your diabetes, state this clearly and name the provider who made that recommendation.
The examiner will ask about episodes of dangerously low blood sugar (hypoglycemia) or diabetic ketoacidosis (DKA). They will want to know: how many episodes have occurred in the past 12 months, whether any required emergency care or hospitalization, and how frequently you experience milder hypoglycemic events requiring you to stop activity and treat with glucose.
Be specific. "I have hypoglycemic episodes approximately two to three times per month that require me to stop what I'm doing and consume glucose tablets or juice" is vastly more useful to a rating examiner than "sometimes my blood sugar gets low." They will also want to review your most recent A1C, fasting glucose, and CGM reports. An A1C above 9.0% is strong evidence of difficult regulation — bring your most recent lab results to the exam.
The examiner will request or review specific laboratory data to assess your current metabolic control and screen for diabetes complications. Know these values before your exam:
| Lab Test | What It Measures | Why It Matters for Rating |
|---|---|---|
| HbA1c (A1C) | Average blood glucose over ~3 months | High A1C supports "difficult regulation" for 60%+ ratings. Bring your most recent result. |
| Fasting glucose | Blood glucose after 8-hr fast | Repeated fasting glucose above 180 mg/dL supports poor control |
| Creatinine / eGFR | Kidney function | Reduced kidney function indicates diabetic nephropathy — a separately ratable secondary condition |
| Microalbumin (urine) | Protein in urine — early kidney damage | Positive microalbumin supports nephropathy secondary condition claim |
| Lipid panel | Cholesterol, triglycerides | Dyslipidemia secondary to diabetes may support cardiovascular secondary claims |
| Ophthalmology report | Retinal examination | Retinopathy diagnosis is a separate secondary condition claim worth significant additional rating |
Effective preparation for a diabetes C&P exam comes down to assembling the right documentation and knowing exactly what to say. Work through each of these areas before your appointment:
Bring a printed medication reconciliation list from your pharmacy or MyHealtheVet — include the name, dosage, and frequency of every diabetes medication, and highlight insulin type and daily injection count. If you use an insulin pump, bring documentation of your pump settings and daily basal delivery.
For blood glucose records: if you use a CGM (Dexcom G7, FreeStyle Libre), print a 90-day glucose report showing average glucose, time-in-range, and hypoglycemic episodes below 70 mg/dL. If you use a traditional glucometer, bring your logbook or a memory report from your pharmacist. Also collect lab results from the past 12 months — A1C, fasting glucose, kidney function labs (creatinine, eGFR, BUN), and urine microalbumin. Organize these chronologically and bring copies, not just originals.
If you have had ER visits, hospitalizations, or urgent care visits for hypoglycemia or DKA, bring those records. For undocumented episodes, write a statement with dates, approximate glucose readings, symptoms, and how you treated each event. Also gather records from every specialist managing your complications:
A brief personal statement (VA Form 21-4138) describing your functional limitations is powerful supporting evidence. Describe: how diabetes affects your daily routine (dietary restrictions, glucose monitoring frequency), how hypoglycemic episodes disrupt your work or activities, any activity limitations your doctor has imposed, and how the condition has progressed since your service. Submit this before or bring it to your exam.
REE Medical specializes in independent medical opinions and nexus letters for VA disability claims. If you need expert documentation connecting your neuropathy, nephropathy, or retinopathy to your service-connected diabetes, their VA-experienced physicians can provide the evidence your claim requires.
Get a Medical Opinion from REE Medical → Disclosure: claim.vet may receive a referral fee if you sign up via this link, at no additional cost to you.Wear comfortable, loose-fitting clothing and easy-to-remove shoes and socks. The diabetes C&P exam is more physical than many people expect:
Based on the standard VA Diabetes Mellitus DBQ, prepare for the following questions:
The diabetes C&P exam includes a physical assessment. Know what to expect and what each component is evaluating:
The examiner will take your blood pressure — typically more than once. Elevated blood pressure may support a secondary hypertension claim or document cardiovascular complications of diabetes. Do not take blood pressure medications in unusual doses or timing before your exam; your real, controlled blood pressure is the relevant data point. Weight and BMI are also recorded as part of the comprehensive evaluation. Obesity is a significant complicating factor in diabetes management and may support documentation of activity restriction.
The examiner will inspect your feet for ulcers, calluses, infection signs, nail abnormalities, and poor circulation indicators — this assessment directly informs the neuropathy and vascular complications sections of the DBQ. For peripheral neuropathy assessment, the examiner may use a 10-gram monofilament pressed against various points on the sole and top of your foot. If you cannot feel the filament, this is a positive finding for sensory neuropathy. Report any existing numbness, tingling, burning, or pins-and-needles sensations in your feet, ankles, legs, or hands. If neuropathy is in your history, the examiner may also perform additional neurological tests — reflexes (patellar, Achilles), vibration sensation, and proprioception testing. Be thorough in reporting any neurological symptoms you experience.
The most costly mistakes at a diabetes C&P exam all involve under-reporting. On insulin dependence: never minimize your insulin use — don't say "I just take a shot at night." State clearly: "I require daily insulin injections as prescribed by my physician — I cannot manage my blood glucose without insulin." The rating criteria is insulin-dependent; "just" and "only" make it sound optional.
On hypoglycemic episodes: if you've had reactions — even ones you managed without ER intervention — report them. Veterans with two or more non-hospitalization hypoglycemic events in the past year already meet one component of the 20% criteria. If those episodes are not documented, they cannot factor into the rating. On complications: complications are not folded into the DC 7913 diabetes rating — they are separately rated secondary conditions. A veteran who reports only diabetes and walks away with a 40% rating has likely left thousands of dollars per month unclaimed. The most common unclaimed complications: bilateral peripheral neuropathy (potentially 10–40% per extremity), diabetic retinopathy, and nephropathy.
The examiner is working from your records — which may be incomplete. Bringing your own documentation (labs, medication list, specialist notes) ensures nothing is missing from the record. An examiner cannot rate what they cannot see documented. Beyond documentation, give complete, specific answers in the exam itself. C&P exams are not social visits. If your diabetes affects your ability to work, explain how — in detail. If you've had to miss work because of glucose monitoring requirements, hypoglycemic episodes, or fatigue, say so. The functional impact of your condition is relevant to the overall compensation picture.
Service-connected diabetes is a gateway condition. Every complication caused by diabetes is ratable as a secondary service-connected condition. File for these simultaneously with or immediately after your diabetes claim:
A nexus letter from a VA-experienced physician connecting your secondary condition to your service-connected diabetes is often the difference between approval and denial. REE Medical provides nexus letters and independent medical opinions specifically for VA secondary condition claims.
Get a Nexus Letter from REE Medical → Disclosure: claim.vet may receive a referral fee if you sign up via this link, at no additional cost to you.| Secondary Condition | VA Diagnostic Code | Rating Range | Notes |
|---|---|---|---|
| Peripheral neuropathy (lower extremities) | DC 8520 (sciatic) or 8521 | 10–80% per extremity | Most common — each leg rated independently. Read the full secondary condition guide. |
| Peripheral neuropathy (upper extremities) | DC 8515/8516 | 10–70% per extremity | Rate each arm independently |
| Diabetic retinopathy | DC 6006 (retinal conditions) | Varies by visual acuity | Requires ophthalmology documentation and visual field testing |
| Diabetic nephropathy / CKD | DC 7541 or kidney codes | 30–100% | Based on GFR, creatinine levels, and dialysis status |
| Hypertension secondary to diabetes | DC 7101 | 10–60% | Strong medical literature supports diabetes→hypertension nexus |
| Depression secondary to diabetes | DC 9434 | 10–100% | Diabetes-related depression is common and well-documented in medical literature |
| Erectile dysfunction (male veterans) | DC 7522 | 0% SC + SMC-K | 0% SC, but adds $133.17/month via Special Monthly Compensation |
After your C&P exam, the examiner submits a DBQ-based report to the VA rating team. Here's the typical timeline:
Do not contact the VA to rush the process. Instead, use this waiting period to gather any additional evidence you want to submit — particularly for secondary conditions you intend to claim separately.
You can check your claim status at any time on VA.gov under "Check your VA claim, decision review, or appeal status."
If your diabetes C&P exam results in a rating lower than you believe is accurate, you have three primary options:
File a supplemental claim with new and relevant evidence. The strongest new evidence for a diabetes supplemental claim includes: updated lab results showing worse control, a private endocrinologist's DBQ or clinical note, documentation of new or worsened complications, or a nexus letter connecting a complication to your service-connected diabetes. There is no time limit on supplemental claims — you can file one at any time after a rating decision.
If you believe the VA made a legal or procedural error (failed to consider evidence already in your file, used an outdated rating schedule, etc.), request an HLR. A senior VA rater will review the existing record without new evidence. HLRs are most effective when the evidence already supports a higher rating and the VA simply got it wrong.
If other review options have been exhausted, appeal to the Board of Veterans' Appeals. You can choose a direct review, evidence submission, or full hearing with a Veterans Law Judge. The BVA process is slower (often 1–3 years) but appropriate for complex cases or where the rating disparity is significant.
For any appeal involving medical evidence, a private DBQ or nexus letter from a VA-experienced physician significantly strengthens your position. Review the supplemental claim guide for the complete filing process.
Marcus served 12 years as an Army logistics specialist, including deployments to Iraq and Kuwait. He was diagnosed with Type 2 diabetes at age 38 — about four years after his ETS. His VA claim initially resulted in a 10% rating based on diet management alone.
"I didn't push back at first because I figured the VA knew what they were doing," Marcus said. "I was managing with metformin, so I thought 10% was right." Two years later, Marcus developed peripheral neuropathy in both feet — confirmed by his podiatrist with monofilament testing. He also had an A1C of 9.2% at his last lab draw, suggesting poor regulation that wasn't captured in the original rating.
After connecting with a VSO who explained secondary conditions, Marcus filed a supplemental claim with an independent nexus letter connecting his neuropathy to his service-connected diabetes. He also submitted a private physician's note documenting insulin initiation and dietary restrictions. His diabetes rating was increased to 40%, and he received separate 20% ratings for each leg — bringing his combined disability rating to 60%. His monthly tax-free compensation increased from $175 to over $1,300.
"The information was out there — I just didn't know what questions to ask. The neuropathy ratings were sitting there unclaimed for two years because I didn't know that was allowed."
Not directly. The DC 7913 rating criteria do not specify A1C thresholds. However, a high A1C (9%+) corroborates "difficult regulation" and supports the argument for 60% or 100% ratings when combined with insulin use and dietary restrictions. Always bring your most recent A1C to the exam.
Yes. Peripheral neuropathy caused by service-connected diabetes is rated separately under its own VA diagnostic code. Each affected extremity is rated independently — so bilateral leg neuropathy could add 20–40% per limb on top of your diabetes rating, dramatically increasing your combined disability percentage.
Wear comfortable, loose-fitting clothing with easy-to-remove shoes and socks. The examiner will check your feet for neuropathic and vascular changes, take your blood pressure, and may need to access your lower legs. Shorts or pants that roll up easily are ideal.
File a supplemental claim with a private nexus letter or independent DBQ documenting your complications. An inadequate C&P exam is grounds for a new examination request or a supplemental claim with private medical evidence. Review the inadequate C&P exam guide for your options.
Yes. Common denial reasons include insufficient evidence of service connection (nexus), missing records, or incorrect application of the rating criteria. A nexus letter from a VA-experienced physician and a buddy statement from a fellow service member who can corroborate your in-service symptoms are often enough to support a supplemental claim. Consider using the denial analyzer to identify the specific issue in your denial letter.
Yes. Type 2 diabetes mellitus is a presumptive condition for Agent Orange exposure. If you served in Vietnam, near the Korean DMZ, or in other locations covered by the Agent Orange presumptive list, you do not need to prove a nexus between your diabetes and your service — the VA presumes the connection. File immediately if you haven't already.
A C&P exam is performed by a VA-contracted examiner following the official DBQ format. A private DBQ is the same form completed by your own treating physician or a private VA-experienced physician. Private DBQs can be submitted as supplemental evidence, and in many cases a thorough private DBQ from a knowledgeable physician is more detailed — and more favorable — than a rushed VA-contracted exam.
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