Evidence Checklist: Chronic Pyelonephritis (Chronic Kidney Infection)

Nexus opinion linking chronic pyelonephritis to service ("at least as likely as not")Critical

A medical opinion stating it is "at least as likely as not" (50%+ probability) that your chronic pyelonephritis is connected to your military service, including connection to service-connected UTIs or urinary obstruction.

Renal function labs (BUN, creatinine, GFR)Critical

Laboratory results documenting kidney function, including blood urea nitrogen, creatinine, and glomerular filtration rate, which are critical for determining the rating level.

Urine cultures documenting recurrent kidney infectionsCritical

Laboratory results showing a pattern of recurrent kidney infections with positive cultures and sensitivity results.

Imaging showing kidney changes

Renal ultrasound, CT scan, or other imaging showing structural kidney changes such as scarring, cortical thinning, or hydronephrosis resulting from chronic infection.

Documentation connecting to service-connected UTIs or urinary obstruction

Medical records establishing a link between chronic pyelonephritis and a previously service-connected urinary condition.

Treatment records (antibiotics, hospitalization)

Records showing antibiotic treatment history, any hospitalizations for acute episodes, and ongoing management.

Buddy statement from spouse, family, or fellow service member

A written statement from someone who can describe observable symptoms and how your condition affects daily life.

Completed DBQ Kidney and Urinary Tract ConditionsCritical

Standardized form capturing renal function, infection history, and voiding dysfunction.

Service treatment records (STRs)Critical

Military medical records showing in-service treatment, complaints, or injuries related to this condition.