How the VA Rates Kidney Stones
The VA rates kidney stones (renal calculi) under Diagnostic Code 7508 in 38 CFR Part 4. Your rating percentage — 0%, 10%, 20%, or 30% — depends primarily on how often kidney stones recur and whether they cause obstruction or require hospitalization. A single stone that passes without recurrence earns 0%, while frequent attacks requiring hospitalization earn 30%.
DC 7508 Rating Criteria
The four rating levels under DC 7508 are defined by recurrence frequency and complication severity.
| Rating | Criteria |
|---|---|
| 0% | Renal calculi with no recurrence after initial passage. Establishes service connection with no monthly compensation. |
| 10% | Recurrent renal calculi — stones have returned at least once, but without obstruction or significant complications. |
| 20% | Recurrent renal calculi with recurring attacks of colic (severe pain episodes) or with X-ray evidence of stones present. |
| 30% | Persistent obstruction requiring intervention, or frequent attacks requiring hospitalization. |
What Counts as an "Attack" for VA Purposes
An attack is a symptomatic episode caused by a kidney stone moving through the urinary tract. Attacks typically include severe flank or groin pain (renal colic), nausea, vomiting, blood in urine (hematuria), and sometimes fever if infection is present.
- Document each attack in your medical records with dates, treatments, and duration.
- Emergency room visits or urgent care records showing treatment for acute renal colic strengthen your claim.
- If you treat attacks at home without going to the ER, keep a personal log noting pain severity, duration, and any medications used.
Hydronephrosis: Higher Ratings Under DC 7504–7507
When a kidney stone causes prolonged obstruction, the kidney can swell with backed-up urine — a condition called hydronephrosis. Hydronephrosis is rated under DC 7504–7507 (kidney conditions) and can earn higher ratings than DC 7508 alone.
- DC 7504 — Hydronephrosis: Rated at 30% (slight), 30% (moderate), 40% (severe), or 60% (very severe with constitutional symptoms).
- If your kidney stone history has led to permanent hydronephrosis or reduced kidney function, file separately under the appropriate kidney code in addition to DC 7508.
- Lab evidence: creatinine, BUN, and GFR values are used to assess kidney function decline.
In-Service Nexus: Dehydration and Deployment
Establishing service connection for kidney stones means linking stone formation to military service. The most common nexus arguments include:
- Chronic dehydration during deployment: Heat exposure in desert environments (Iraq, Afghanistan, Kuwait) severely limits fluid intake and concentrates urine, directly causing calcium oxalate stone formation.
- Limited water access during field training: Even stateside, extended field exercises without adequate hydration increase stone risk.
- In-service stone diagnosis: If you were diagnosed with a kidney stone during active duty (ICD-10 N20.0), that creates direct service connection.
- Continuity of symptoms: If you had stones in service and stones continued after discharge, a physician's nexus letter can establish continuity.
Dietary Factors in Stone Formation
Military diet during deployment — high sodium, limited fresh produce, and poor hydration — is linked to calcium and uric acid stone formation. These dietary factors can support your nexus argument.
- High-protein MRE diets raise uric acid levels, promoting uric acid stones.
- High-sodium diets increase urinary calcium excretion, promoting calcium stones.
- A urologist's letter describing how military dietary and hydration conditions contributed to stone formation is powerful nexus evidence.
How to Document Attack Frequency
The difference between a 10% and a 30% rating often comes down to how well you document your attack history. Follow these steps to build the strongest possible record.
- Collect all emergency room, urgent care, and urology records showing stone treatment dates.
- If you have imaging (CT scan, KUB X-ray, ultrasound) showing stones, include those reports in your claim.
- Write a personal statement listing every attack you recall with approximate dates, severity, and treatment.
- Ask your urologist for a letter summarizing your stone history, recurrence pattern, and prognosis.
- Describe how attacks affect your work attendance, physical activity, and quality of life.
2026 Monthly Compensation Rates for Kidney Stone Ratings
Based on 2026 VA compensation rates for a single veteran with no dependents:
- 10% rating: $175.51/month
- 20% rating: $347.05/month
- 30% rating: $538.37/month
If kidney stones are combined with hydronephrosis or other genitourinary conditions, your combined rating will be higher.
Use our VA disability rating calculator to see how a kidney stone rating combines with your other conditions. Browse all VA-rated conditions at VA disability.