Genitourinary System§ 4.115bUpdated
Rating criteria

VA Diagnostic Code 7509Hydronephrosis

Rated from 10% to 30% under § 4.115b. Here is what the VA requires at each level.

View official source

Not the right code?

In short

Summary

Severe; Rate as renal dysfunction.

The ladder

What each rating requires

The VA assigns the highest level your evidence actually supports. Read up the stack until your records stop matching.

  1. 30%

    Frequent attacks of colic with infection (pyonephrosis), kidney function impaired

  2. 20%

    Frequent attacks of colic, requiring catheter drainage

  3. 10%

    Only an occasional attack of colic, not infected and not requiring catheter drainage

From the schedule

Notes on this code

These notes are part of the regulation. They change how the levels above are applied.

  • Note: When evaluating any claim involving loss or loss of use of one or more creative organs, refer to § 3.350 of this chapter to determine whether the veteran may be entitled to special monthly compensation. Footnotes in the schedule indicate conditions which potentially establish entitlement to special monthly compensation; however, there are other conditions in this section which under certain circumstances also establish entitlement to special monthly compensation.

Hydronephrosis (VA Diagnostic Code 7509)

Genitourinary System · 38 CFR § 4.115b

Understanding Hydronephrosis

Hydronephrosis is a condition affecting the genitourinary system. Under the VA rating schedule, it is evaluated using Diagnostic Code 7509, found in 38 CFR § 4.115b.

In its severe form, hydronephrosis is rated as renal dysfunction. For other levels of severity, the VA uses the specific rating levels described below.

Available Rating Levels

The VA assigns a disability rating based on the frequency of attacks, whether infection is present, the degree of kidney function impairment, and whether catheter drainage is needed.

RatingWhat It Reflects
30%Frequent attacks of colic with infection (pyonephrosis), kidney function impaired
20%Frequent attacks of colic, requiring catheter drainage
10%Only an occasional attack of colic, not infected and not requiring catheter drainage

Severe cases: When hydronephrosis is severe, it is rated as renal dysfunction rather than under the levels listed above.

What the VA Looks For

When rating hydronephrosis, the VA considers factors such as:

  • How often attacks of colic occur — occasional versus frequent
  • Whether infection is present (pyonephrosis)
  • Whether kidney function is impaired
  • Whether catheter drainage is required
  • Overall severity — severe cases are evaluated as renal dysfunction

Additional Note

When evaluating any claim involving loss or loss of use of one or more creative organs, the VA refers to § 3.350 of this chapter to determine whether a veteran may be entitled to special monthly compensation. Footnotes in the schedule indicate conditions which potentially establish entitlement to special monthly compensation; however, there are other conditions in this section which, under certain circumstances, also establish such entitlement.


This information is drawn from the VA rating schedule for Diagnostic Code 7509. It is provided for general educational purposes and describes the criteria the VA uses to evaluate this condition.

These criteria are a rendering of § 4.115b, diagnostic code 7509. The official version is the one that governs your rating.

View official source
What next

How to claim this

Knowing the criteria is the first half. Getting your file to show them is the second.

  1. Find your level in the stack

    Read each rung against what your medical records already say. The level your records document today is the one the VA can support today.

  2. Name the gap

    Look at the rung above yours and write down exactly what it asks for that your file does not show yet — a diagnosis, a measurement, a prescribed brace, a doctor’s opinion linking it to service.

  3. Claim it by code

    File under diagnostic code 7509 and attach the evidence for the level you are asking for. Other Genitourinary System codes may cover your secondary conditions.

Find out which rating your evidence supports.

Six reads your records against these exact criteria and tells you what the VA is still missing.

Start for freeAll 40 Genitourinary System codes