What rates 10% for Hydronephrosis under 38 CFR § 4.115b, DC 7509?

Under 38 CFR § 4.115b, DC 7509 (DC 7509), a 10% rating for Hydronephrosis requires: Daytime voiding interval between two and three hours, or awakening to void two times per night; or mild renal dysfunction.

What happens during a C&P exam for Hydronephrosis?

Bring all relevant medical records and a written list of symptoms. Report your worst days, not your best. The VA rates based on overall impairment.

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Hydronephrosis

Q: What are the VA rating percentages for Hydronephrosis?

Hydronephrosis (DC 7509) is rated at 10%, 20%, 40%, 60% under 38 CFR § 4.115b, DC 7509. Daytime voiding interval between two and three hours, or awakening to void two times per night; or mild renal dysfunction.

Q: What rates 20% for Hydronephrosis under 38 CFR § 4.115b, DC 7509?

Under 38 CFR § 4.115b, DC 7509 (DC 7509), a 20% rating for Hydronephrosis requires: Daytime voiding interval between one and two hours, or awakening to void three to four times per night; or requiring the wearing of absorbent materials which must be changed less than two times per day.

Q: What rates 40% for Hydronephrosis under 38 CFR § 4.115b, DC 7509?

Under 38 CFR § 4.115b, DC 7509 (DC 7509), a 40% rating for Hydronephrosis requires: Daytime voiding interval less than one hour, or awakening to void five or more times per night; or requiring the wearing of absorbent materials which must be changed two to four times per day.

Q: What rates 60% for Hydronephrosis under 38 CFR § 4.115b, DC 7509?

Under 38 CFR § 4.115b, DC 7509 (DC 7509), a 60% rating for Hydronephrosis requires: Requiring the use of an appliance or the wearing of absorbent materials which must be changed more than four times per day; or moderate to severe renal dysfunction.

Q: What evidence do I need for a Hydronephrosis VA claim?

Key evidence for a Hydronephrosis claim includes: Service treatment records; Current medical diagnosis and treatment records; Buddy/lay statements; Prescription history; Employment impact documentation. All evidence should document both the condition and its impact on daily functioning.

DC 750938 C.F.R. § 4.115b

Diagnostic Code

DC 7509

38 C.F.R. § 4.115b

Rating Range

10–60%

4 severity tiers

Source

Referenced

38 C.F.R. Part 4

Hydronephrosis is rated by the U.S. Department of Veterans Affairs under DC 7509 of 38 CFR § 4.115b, DC 7509 across 4 severity tiers (10% / 20% / 40% / 60%). Service connection requires (1) a current diagnosis, (2) an in-service event, injury, or exposure, and (3) a medical nexus opinion linking the two under 38 C.F.R. § 3.303.

Educational tool only. Not legal or medical advice. Not affiliated with the VA.

Overview

Swelling of the kidney due to urine backup from obstruction. Can be caused by kidney stones, tumors, enlarged prostate, or congenital abnormalities. Prolonged obstruction damages kidney tissue.

Rating Criteria

10%

Daytime voiding interval between two and three hours, or awakening to void two times per night; or mild renal dysfunction.

20%

Daytime voiding interval between one and two hours, or awakening to void three to four times per night; or requiring the wearing of absorbent materials which must be changed less than two times per day.

40%

Daytime voiding interval less than one hour, or awakening to void five or more times per night; or requiring the wearing of absorbent materials which must be changed two to four times per day.

60%

Requiring the use of an appliance or the wearing of absorbent materials which must be changed more than four times per day; or moderate to severe renal dysfunction.

03Key Evidence

—Service treatment records

—Current medical diagnosis and treatment records

—Buddy/lay statements

—Prescription history

—Employment impact documentation

—Any relevant diagnostic testing

04C&P Exam Tips

1Bring all relevant medical records and a written list of symptoms.

2Report your worst days, not your best. The VA rates based on overall impairment.

3Document how the condition affects daily activities, work, and relationships.

4Mention all medications and their side effects.

5Bring buddy statements from people who observe your symptoms.

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Tools

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Sources & Editorial

Rating criteria reference 38 C.F.R. Part 4 (Schedule for Rating Disabilities). This entry has not yet undergone editorial review against the live regulation text — consult the authoritative source directly before relying on the criteria shown.

View 38 C.F.R. Part 4 on eCFR →Editorial Standards →Suggest a correction →

EDUCATIONAL TOOL ONLY. NOT LEGAL OR MEDICAL ADVICE.
NOT AFFILIATED WITH THE U.S. DEPARTMENT OF VETERANS AFFAIRS.
CLAIM RECON 2026

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