Conditions in which fluid-filled sacs develop in the kidneys and may impair kidney function.
Because the rating depends on measured kidney function, lab records are the most direct evidence. GFR values — including estimated GFR (eGFR) and creatinine-based approximations calculated by a medical professional — are accepted. Records showing GFR readings taken over at least 3 consecutive months within the past 12 months carry the most weight. For the 100% level, documentation of dialysis schedules or a transplant eligibility determination is relevant.
For the 0% level with a GFR of 60 to 89, urinalysis results showing recurrent red blood cell casts, white blood cell casts, or granular casts are relevant, as are imaging or pathology records confirming structural kidney abnormalities, and lab results showing an albumin-to-creatinine ratio of 30 mg/g or higher — all sustained across at least 3 consecutive months. If you also experience voiding problems or recurrent urinary infections with symptoms that are distinct from your kidney-function symptoms, medical records and personal statements describing how those symptoms affect your daily life and work may support a separate evaluation for those dysfunctions.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.
