38 CFR Part 4 — 38 CFR § 4.115
Pyelonephritis Chronic
dc-7504-pyelonephritis-chronic
Genitourinary
Diagnostic code
7504
Why your DC matters: DC 7504 is the exact code the VA uses to rate this condition. It determines which symptoms unlock which percentage, what evidence the rater looks for, and which secondaries are most likely to be approved.
Last verified against 38 CFR (eCFR Part 4):
Rating criteria (38 CFR Part 4)
Diagnostic code 7504 — Pyelonephritis Chronic — is listed under 38 CFR § 4.115 in 38 CFR Part 4. The paragraphs below summarize how this code is used; the official schedule text controls exact percentages, formulas, and notes.
Schedule summary (educational, not a substitute for the regulation): Educational index row from the rating schedule naming convention; confirm exact diagnostic code, effective date, and criteria in the current eCFR Part 4.
Exact rating criteria: Open Part 4 in the eCFR (link under “Official source” below). Locate your diagnostic code number (7504) in the correct body-system subpart, or use Find in Page (Ctrl+F / ⌘F) for “7504”. Copy the verbatim rating table, including any parenthetical notes, exceptions, and cross-references, for the version of Part 4 that applies to your effective date.
Effective dates & which schedule version applies
Which diagnostic code, percentage, and effective date apply depends on the facts of your claim and the version of the rating schedule in force for the period being decided. Generally, VA applies the schedule in effect at the specified time under 38 U.S.C. § 5110 and implementing rules, subject to exceptions (e.g., protected ratings, liberalizing law changes—see regulation and VA manual policy as applicable).
For older claims, the **current** eCFR may not match the text that applied years ago. If your decision references a prior percentage or code, compare against the Part 4 text **as of** your claim’s relevant dates; historical Federal Register / CFR snapshots may be needed for precise comparison.
The “Last verified” date on this page is when we last checked this educational summary against the electronic CFR—not the date of any VA policy or your personal claim decision.
Notes for your claim
Evidence: Show that your diagnosis and severity match the factors the schedule names for DC 7504 (e.g., measurements, frequency, treatment, functional loss), with medical and lay evidence as appropriate.
C&P exams: Results should reflect the schedule’s requirements (correct joints measured, correct formulas). If the exam omits required findings, consider submitting records or requesting clarification.
If you disagree with the DC, percentage, or effective date, review the Part 4 text for your period and consider a supplemental claim or appeal with a VA-accredited representative.
This site does not provide legal advice.
Official source
38 CFR Part 4 (eCFR) — locate diagnostic code 7504 in the subpart for your body system (use Find in Page if needed).
DC 7504 (pyelonephritis) is a dual-track DC: rate either as renal dysfunction (§ 4.115a) OR as urinary tract infection (§ 4.115a) — whichever yields the higher evaluation. The UTI track was substantially revised effective November 14, 2021, raising the bar for the 30% tier and adding new criteria (stent/nephrostomy drainage, poor renal function). Veterans with recurrent pyelonephritis often have both elements — recurrent infection AND some baseline renal impairment — which lets them choose the more favorable path. The trap: pre-2021 ratings sometimes carried forward stale criteria; verify which schedule applied at your effective date.
Rating Tiers — What Each Percentage Requires
| Rating | What It Takes | Evidence That Supports It |
|---|---|---|
| 100% | Rate as renal dysfunction per § 4.115a — requires dialysis OR BUN > 80 OR creatinine > 8 OR sedentary-restricted by edema/albuminuria. | Same renal dysfunction evidence as DC 7530 if progressed to ESRD. |
| 60% | Rate as renal dysfunction — constant albuminuria with some edema; or definite decrease in kidney function; or HTN ≥ 40%. | Serial labs + 24-hour urine protein + BP log. |
| 30% | Rate as UTI (post-Nov 2021): recurrent symptomatic infection requiring drainage by stent or nephrostomy tube; OR > 2 hospitalizations/year; OR continuous intensive management; OR poor renal function. Alternative rate as renal dysfunction with albumin + casts + transient edema + HTN ≥ 10%. | Stent/nephrostomy operative report; hospitalization records; nephrology continuous management notes; OR urinalysis + BP log. |
| 10% | Rate as UTI (post-Nov 2021): recurrent symptomatic infection requiring 1-2 hospitalizations/year OR suppressive drug therapy lasting 6+ months. | Hospitalization records OR pharmacy printout showing 6+ months of suppressive antibiotic (nitrofurantoin, TMP-SMX, etc.). |
| 0% | Asymptomatic between episodes OR resolved with short-course antibiotic. | History of acute episodes without ongoing management. |
What Qualifies as 'Chronic Pyelonephritis' Under DC 7504?
Chronic upper urinary tract infection with renal involvement
Pyelonephritis = infection of the renal parenchyma. Distinguished from cystitis (lower tract) by upper tract symptoms (flank pain, fever, costovertebral angle tenderness) and imaging or biopsy evidence of renal involvement.
Dual-track rating per § 4.115a
Rate as either renal dysfunction OR urinary tract infection, whichever yields the higher evaluation. Calculate both paths and choose deliberately.
Post-November 2021 UTI criteria
30% = drainage by stent/nephrostomy OR > 2 hospitalizations/yr OR continuous intensive management OR poor renal function. 10% = 1-2 hospitalizations/yr OR suppressive antibiotic 6+ months.
Chronicity required (vs. acute episode)
Single acute episode that resolved doesn't qualify. Chronic requires recurrence over time, supportive imaging (scarring, hydronephrosis), or sustained renal impairment.
Language Your Rater Needs to See
These are the exact (or near-exact) regulatory phrases that unlock specific tiers. If your DBQ or C&P report doesn't use this vocabulary, the rater may default to a lower percentage even when symptoms qualify.
“Drainage by stent or nephrostomy tube OR > 2 hospitalizations/year OR continuous intensive management OR poor renal function”
Post-2021 30% gate is DISJUNCTIVE — any ONE element triggers 30%. Stent or nephrostomy is often the cleanest path; documented at operative report. Poor renal function (eGFR < 60) is alternate path.
“Suppressive drug therapy lasting 6+ months”
10% alternate path — chronic suppressive antibiotic (nitrofurantoin, TMP-SMX, cephalexin) for 6+ months qualifies even without hospitalization. Pull pharmacy printouts.
“Rate as renal dysfunction OR UTI — whichever yields higher evaluation”
DC 7504 is dual-pathway. Calculate BOTH ratings; the higher one wins. Recurrent pyelo veterans often have both — recurrent infection AND baseline renal impairment.
Evidence Checklist — Specific to This Condition
Urology / nephrology consult notes
CRITICALEstablishes chronic pyelonephritis diagnosis vs. recurrent acute UTI. Imaging (renal US, CT) showing renal scarring or hydronephrosis supports chronicity.
Hospitalization records (12-month rolling)
CRITICALCount episodes per year. > 2/year = 30% UTI path. 1-2/year = 10% UTI path.
Pharmacy printout — suppressive antibiotic Rx
CRITICALContinuous nitrofurantoin / TMP-SMX / cephalexin for 6+ months = 10% UTI path automatically.
Stent / nephrostomy operative report (if applicable)
CRITICALSingle document anchors 30% UTI tier post-2021.
Serial CMP / BMP + 24-hour urine protein
IMPORTANTIf renal dysfunction path is more favorable, document the BUN/creatinine trend and albuminuria.
Renal imaging showing scarring or hydronephrosis
SUPPORTINGAnatomical evidence of chronic pyelonephritis sequelae; supports the chronicity element.
C&P Exam Tips
Bring 12-month hospitalization log
Count episodes per year — drives both 10% and 30% UTI tiers.
Bring pharmacy printout for suppressive antibiotics
6+ months continuous = automatic 10%. Often missed without printout.
Bring renal imaging (US or CT) showing chronicity
Renal scarring, cortical thinning, or hydronephrosis supports chronic vs. acute distinction.
Don't underplay frequency of infections
Many veterans 'soldier through' UTIs without ER visits. If you've had 4+ infections in a year managed by your PCP with antibiotics, that's still 'continuous intensive management.'
Common Mistakes That Cost Veterans Points
Filing as 'recurrent UTI' instead of DC 7504 pyelonephritis
Chronic pyelonephritis (upper tract, with renal involvement) rates under DC 7504 with the dual-track option. Generic recurrent cystitis is a different DC. Anchor the diagnosis with renal imaging or nephrology nexus.
Not choosing the higher-yield pathway
DC 7504 lets you rate as renal dysfunction OR UTI. Calculate both and pick the higher. Recurrent pyelo often qualifies for 30% UTI path AND 60% renal dysfunction path — go with the higher.
Carrying forward stale pre-2021 UTI criteria
§ 4.115a UTI criteria were substantially revised November 14, 2021. Pre-2021 ratings may use older criteria; post-2021 effective dates use new criteria. Verify which applies.
Missing the 10% path via suppressive antibiotic Rx
Continuous suppressive antibiotic for 6+ months = automatic 10% under post-2021 rule. Pull pharmacy printouts.
Tactical Plays
⚡ Calculate BOTH the UTI tier AND the renal dysfunction tier — pick higher
DC 7504 is dual-track. Run the math both ways. UTI path: count hospitalizations, count antibiotic Rx duration, check for stent/nephrostomy. Renal dysfunction path: pull labs, check eGFR, calculate based on albuminuria + BP. The higher rating wins — pick deliberately, don't let the rater default to the lower path.
⚡ Pull pharmacy printout for suppressive antibiotic — automatic 10%
Post-2021 schedule: continuous suppressive antibiotic for 6+ months = automatic 10% rating. Pharmacy printout is the cleanest possible evidence. Many veterans on chronic nitrofurantoin / TMP-SMX miss this minimum.
⚡ If you've had a stent or nephrostomy — automatic 30%
The operative report alone documents the 30% UTI tier. Don't let the rater downgrade with 'but the stent is removed now.' The criterion is whether infection required drainage, not current status.
⚡ Build CKD secondary file in parallel
Recurrent pyelonephritis causes renal scarring → CKD. If serial labs show declining eGFR, file DC 7502 (chronic nephritis) or DC 7530 (if dialysis) as a secondary. Pyelo + CKD stacking is recognized.
Secondary Conditions to File With This One
Hydronephrosis (cause OR consequence)
STRONGDC 7509
Pyelonephritis can cause hydronephrosis (post-infectious obstruction) or be caused by hydronephrosis (stasis predisposes to infection). Bidirectional secondary.
Chronic renal disease (downstream)
STRONGDC 7530 / 7502
Recurrent pyelonephritis causes renal scarring and CKD. Direct secondary pathway.
Hypertension (renal-driven)
MODERATEDC 7101
Chronic pyelonephritis with renal scarring drives secondary hypertension.
Anemia of CKD (if progressed)
MODERATEDC 7720
If pyelonephritis has caused significant renal dysfunction, secondary anemia is on the table.
Urethritis / cystitis (lower tract)
SITUATIONALCoexisting lower urinary tract pathology — separately ratable under different DCs (cystitis = 7515).
Compensation Scenarios
2026 rates (effective Dec 1, 2025, per va.gov)
10% — single, no dependents
Base rating
$180.42
TOTAL
$180.42/mo
Suppressive antibiotic Rx 6+ months OR 1-2 hospitalizations/year.
30% — single, no dependents
Base rating
$552.47
TOTAL
$552.47/mo
Stent / nephrostomy OR > 2 hospitalizations/year OR poor renal function.
60% — single, no dependents
Base rating
$1,435.02
TOTAL
$1,435.02/mo
Renal dysfunction path — eGFR < 60 sustained.
100% — single, no dependents
Base rating
$3,938.58
TOTAL
$3,938.58/mo
Progressed to ESRD requiring dialysis (transition to DC 7530).
30% DC 7504 + 30% DC 7509 hydronephrosis
Base rating
$1,132.90
TOTAL
$1,132.90/mo
Combined ~51% rounds to 50%. Pyelo + hydronephrosis frequently coexist.
Note: Amounts are approximations rounded to nearest dollar. Actual comp varies with effective date, dependents (spouse, children, parents — each adds), Aid & Attendance, and additional disabilities. Combined ratings use VA Math (§ 4.25), not simple addition.
Key Definitions
🔀What's the dual-track in DC 7504?
DC 7504 directs rating as renal dysfunction (§ 4.115a) OR urinary tract infection (§ 4.115a), whichever yields the higher rating. Run both calculations; the higher one wins. Recurrent pyelo veterans often have both elements available — choose the path with the higher tier.
📅What changed in November 2021?
§ 4.115a UTI criteria were substantially revised effective November 14, 2021. The 30% tier added new criteria (drainage by stent/nephrostomy, poor renal function) and tightened hospitalization thresholds. The 10% tier added the 'suppressive drug therapy 6+ months' path. Verify which schedule applies to your effective date.
💊What is 'suppressive antibiotic therapy'?
Continuous low-dose antibiotic to prevent recurrent infection — typically nitrofurantoin (Macrobid), TMP-SMX (Bactrim), or cephalexin (Keflex). 6+ months continuous = automatic 10% rating under the post-2021 UTI criteria.
📉When does pyelonephritis become CKD?
Recurrent pyelo causes renal scarring → progressive renal dysfunction → CKD → potentially ESRD. The transition is gradual; serial eGFR / creatinine trend over years documents it. At the CKD stage, the renal dysfunction path of DC 7504 often becomes higher than the UTI path.
How to File Your Claim
Pull urology / nephrology records establishing chronicity
Renal imaging (US, CT) showing scarring or hydronephrosis. Anchors chronic vs. acute distinction.
Count hospitalizations + pull pharmacy printouts
Annual hospitalization count + suppressive antibiotic duration drive UTI tier.
Calculate BOTH UTI tier AND renal dysfunction tier
Run both paths; identify the higher rating; file under that path.
File 21-526EZ specifying 'chronic pyelonephritis (DC 7504)'
Note both pathways in claim narrative — let rater see the analysis.
File hydronephrosis + CKD secondaries if applicable
DC 7509 (hydronephrosis), DC 7502 (chronic nephritis), DC 7720 (anemia) all stack.
Typical Claim Timeline
File initial claim
Day 0–7: Submit VA Form 21-526EZ with all medical evidence on file
VA acknowledges claim
Week 1–2: Receive confirmation letter and claim tracking number
C&P examination scheduled
Month 1–3: VA contracts an exam vendor and sends you appointment notice
Attend C&P exam
Bring your full evidence package; describe symptoms on your worst days, not your best
Decision & rating notice
Month 3–6: Decision letter with rating percentage and effective date
First payment & retro back pay
Within 15 days of decision; retroactive to claim date (or effective date if earlier)
Timeline varies by case complexity and VA regional office workload. Some claims resolve faster; others take longer.
Important Considerations
Dual-track DC — calculate BOTH paths
DC 7504 lets you rate as UTI OR renal dysfunction. Run both calculations; the higher rating wins. Don't let the rater default to the lower path.
Post-Nov 2021 UTI criteria changed materially
Suppressive antibiotic 6+ months = automatic 10%. Stent/nephrostomy = automatic 30%. Verify which schedule applies to your effective date.
Build the CKD secondary file in parallel
Recurrent pyelo causes renal scarring → CKD. Serial eGFR trend supports DC 7502 secondary if you're progressing.
Pharmacy printout is the gold-standard 10% evidence
Continuous suppressive antibiotic for 6+ months — pharmacy fill history documents it definitively.
Related Tools & Resources
Frequently Asked Questions
Should I rate under the UTI path or renal dysfunction path?
Whichever yields the higher rating. DC 7504 lets you choose. Calculate both. Recurrent pyelo veterans often qualify for 30% UTI (stent or > 2 hospitalizations/yr) AND 60% renal dysfunction (eGFR < 60) — go with the higher tier.
Does continuous nitrofurantoin Rx qualify me for any rating?
Yes — under the post-Nov 2021 § 4.115a UTI criteria, continuous suppressive antibiotic therapy (nitrofurantoin, TMP-SMX, cephalexin) for 6+ months = automatic 10% rating. Pull pharmacy printouts.
What's 'continuous intensive management' for the 30% tier?
Frequent (monthly+) urology / nephrology visits for infection management, ongoing IV antibiotic courses, repeated imaging, or other intensive medical management beyond standard outpatient antibiotic Rx. Document the visit cadence and intervention history.
Can I stack pyelonephritis and hydronephrosis ratings?
Yes — DC 7504 (pyelonephritis) and DC 7509 (hydronephrosis) are separately ratable when both conditions independently exist. They often coexist clinically (obstruction → stasis → infection).
What if my pyelonephritis was an in-service single episode that resolved?
Single resolved episode doesn't establish chronic pyelonephritis. You'd need to document recurrence, residual renal scarring on imaging, or progression to chronic renal disease. Without chronicity, only acute episode claims (often noncompensable) are available.
Official Regulatory Source
Chronic pyelonephritis is rated under 38 CFR § 4.115b, DC 7504 — dual-track via § 4.115a (renal dysfunction OR urinary tract infection, whichever higher).
38 CFR § 4.115b — Genitourinary Diagnoses (eCFR) →Scroll to DC 7504. Cross-reference § 4.115a for both rating formulas. The UTI criteria were substantially revised effective November 14, 2021.
Next Steps
If your rating decision lists DC 7504, compare your current symptoms and documentation against the criteria above. Consider:
- Requesting a copy of your rating decision and C&P exam report from the VA
- Gathering all relevant medical records (VA and private providers)
- Documenting functional limitations and how they impact work and daily activities
- Obtaining a nexus letter if needed to establish or strengthen service connection
- Filing for secondary conditions that may be related to this primary condition
- Contacting a VA-accredited VSO, claims agent, or attorney to review your file
This is general educational information only — not legal or medical advice.
Also: DC code lookup (tools) lists the same index in a compact layout.
Source: 38 CFR Part 4, Diagnostic Code 7504 • va.gov
⚠️ Important Disclaimer
This page provides general educational information only based on public VA regulations (38 CFR) and va.gov resources. It is not legal, medical, or claims assistance. Ratings and service connections are decided case-by-case by the VA based on the individual veteran’s evidence. We do not prepare claims, generate documents, or provide personalized advice. Always consult a VA-accredited Veterans Service Organization (VSO), attorney, or your physician for help with your specific situation. Verify the latest rules on va.gov.