YOUR CONDITION, EXPLAINED
Hydronephrosis VA disability rating & claim guide
The VA rates Hydronephrosis under diagnostic code 7509, in 38 CFR § 4.115b (genitourinary system), and the schedule provides seven evaluation levels for it: 100%, 80%, 60%, 30%, 20%, 10% and 0%.
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A CLEARER PATH FORWARD
Make sense of your next step.
01Understand the rating02Know what to gather03Plan your preparationTHE ESSENTIALS
How the VA rates Hydronephrosis
Swelling of the kidney due to urine backup from obstruction.
DC 7509 has two parts. Its own rows count attacks of colic: only an occasional attack, not infected and not requiring catheter drainage, is 10 percent; frequent attacks of colic requiring catheter drainage is 20 percent; and frequent attacks of colic with infection (pyonephrosis), kidney function impaired, is 30 percent. Above that the code hands off — the schedule line reads "Severe; Rate as renal dysfunction", which is the § 4.115a table graded by glomerular filtration rate: 30 percent for GFR from 45 to 59 mL/min/1.73 m2, 60 percent for 30 to 44, 80 percent for 15 to 29, and 100 percent for GFR less than 15, or requiring regular routine dialysis, or being an eligible kidney transplant recipient, with 0 percent for GFR from 60 to 89 alongside recurrent casts, structural kidney abnormalities, or an albumin/creatinine ratio of 30 mg/g or more — each band held for at least 3 consecutive months during the past 12 months. So the 60, 80 and 100 percent evaluations are not reached by describing worse symptoms; they are reached by GFR.
- Diagnostic code
- 7509
- Rating schedule
- 38 CFR § 4.115b
- Schedule levels
- 100%, 80%, 60%, 30%, 20%, 10% and 0%
How does the VA choose a rating level?
Which level applies is set by the criteria the evidence meets, not by the diagnosis. Where there is a question as to which of two evaluations applies, 38 CFR § 4.7 assigns the higher one if the disability picture more nearly approximates the criteria required for that rating.
EXPLORE THE PERCENTAGES
Hydronephrosis VA rating criteria (DC 7509)
Choose a percentage to see what that level means. Open the full comparison to read all the criteria in one place.
These are published rating criteria. Selecting a level does not predict your VA decision.
IN THE REGULATION’S OWN WORDS
What 38 CFR also says about Hydronephrosis
The notes 38 CFR Part 4 prints with these criteria, quoted. They govern how the evaluation is made without being a rating level themselves.
- “Note: GFR, estimated GFR (eGFR), and creatinine-based approximations of GFR will be accepted for evaluation purposes under this section when determined to be appropriate and calculated by a medical professional.”Renal dysfunction
BUILD YOUR EVIDENCE, ONE PIECE AT A TIME
Evidence for your Hydronephrosis claim
A long list feels easier when you have a place to start. Use this checklist to see what you have and what still needs gathering.
Check off what you’ve gathered. Progress stays on this page until you leave or refresh.
THE EXAM FORM
Which DBQ is used for Hydronephrosis?
VA's page says: “You can use these forms to submit medical evidence from your health care providers.”
Source: VA: Public Disability Benefits Questionnaires (DBQs), read September 18, 2026.
SMALL DETAILS. BETTER PREPARATION.
Preparing your Hydronephrosis claim
Start with the practical tips, then explore the common oversights. You don’t need to work through everything at once.
Practical tips for your claim2 tips
- 01
Have each attack of colic recorded with whether it was infected and whether catheter drainage was needed. Those are the facts separating 10, 20 and 30 percent.
- 02
If the case has moved past colic, the evidence changes character. The severe branch is rated as renal dysfunction, so serial GFR values held for at least 3 consecutive months within the past 12 are what carry it above 30 percent.
C&P exam pitfalls to keep in mind2 tips
- 01
Failure to document how often attacks occur, since frequency is central to the rating tiers.
- 02
Missing surgical records if a procedure was performed to address the obstruction.
Common filing mistakes2 tips
- 01
No imaging proof to confirm the diagnosis and its severity.
- 02
Relying only on symptom-based claims without objective imaging or lab confirmation.
When symptoms may first appear1 tips
- 01
Hydronephrosis often develops after a prior surgery or is related to recurring kidney stones that repeatedly obstruct urine flow.
SECONDARY TO SOMETHING ELSE
Conditions that can lead to Hydronephrosis
Each links to a page on claiming Hydronephrosis as secondary to that condition.
THE BROADER PICTURE
Hydronephrosis by the numbers
- Approval outlook
- Moderate
- Veterans service-connected
- ~2,600 veterans
- Typical rating awarded
- ~30%
Vetrify editorial estimates informed by VA published claims data (VBA Annual Benefits Report) and the VA rating schedule, not official VA statistics.
LET’S CLEAR A FEW THINGS UP
Common questions about Hydronephrosis
Is Hydronephrosis a VA-rated disability?
Yes. The VA rates Hydronephrosis under VASRD diagnostic code 7509 (Genitourinary System). Swelling of the kidney due to urine backup from obstruction.
What VA disability rating can I get for Hydronephrosis?
Possible VA ratings for Hydronephrosis are 100%, 80%, 60%, 30%, 20%, 10%, 0%. Examples: 100%: Severe hydronephrosis, rated as renal dysfunction: chronic kidney disease with glomerular filtration rate (GFR) less than 15 mL/min/1.73 m2 for at least 3 consecutive months during the past 12 months; or requiring regular routine dialysis; or eligible kidney transplant recipient; 80%: Severe hydronephrosis, rated as renal dysfunction: chronic kidney disease with GFR from 15 to 29 mL/min/1.73 m2 for at least 3 consecutive months during the past 12 months; 60%: Severe hydronephrosis, rated as renal dysfunction: chronic kidney disease with GFR from 30 to 44 mL/min/1.73 m2 for at least 3 consecutive months during the past 12 months.
What's the typical VA rating awarded for Hydronephrosis?
Vetrify estimates the typical rating awarded for Hydronephrosis at around 30%, based on VA claims data and the rating schedule. An estimated 2,600 veterans are service-connected for Hydronephrosis. Estimated approval outlook: Moderate.
What evidence helps prove Hydronephrosis for VA disability?
Strong evidence for a Hydronephrosis claim includes: Ultrasound or CT imaging confirming the hydronephrosis and the obstruction behind it; Records for each attack of colic, noting infection (pyonephrosis) and any catheter drainage; Serial GFR or eGFR results with dates, since the severe branch is rated as renal dysfunction and each band requires at least 3 consecutive months during the past 12 months; Urology or nephrology notes documenting kidney function alongside the obstruction.
Which DBQ is used for Hydronephrosis?
VA's Kidney Conditions Disability Benefits Questionnaire (DBQ) is on its public list of DBQs. VA's page says: "You can use these forms to submit medical evidence from your health care providers."
What mistakes should veterans avoid when claiming Hydronephrosis?
Common pitfalls when filing for Hydronephrosis: No imaging proof to confirm the diagnosis and its severity; Relying only on symptom-based claims without objective imaging or lab confirmation.
What conditions can be secondary to Hydronephrosis?
Conditions that can be service-connected as secondary to Hydronephrosis, when a medical opinion links them, include: Kidney stones. A secondary condition gets its own rating, which VA combines with the veteran's other ratings under 38 CFR 4.25.
Official sources
- 38 CFR § 4.115b, Schedule of ratings, genitourinary system (Diagnostic Code 7509)
- 38 CFR § 4.7, higher of two evaluations
Criteria in quotation marks are the regulation’s own words; everything else on this page is Vetrify’s summary of it. The eCFR text is authoritative. See how Vetrify derives its numbers.
How these figures are checked: our methodology and the open dataset.
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