Rubix LS Diabetic Kidney Disease (DKD) Registry Study

Inclusion Criteria: Age ≥18 years at the time of enrollment Documented diagnosis of type 2 diabetes mellitus in the medical record Evidence of chronic kidney disease consistent with diabetic kidney disease (DKD), defined by one or more of the following, with evidence of chronicity (present for ≥3 months based on prior laboratory results, diagnosis codes, or clinician documentation): eGFR \<60 mL/min/1.73 m², and/or Urine albumin-to-creatinine ratio (UACR) ≥30 mg/g Receiving ongoing clinical care at a participating site with medical record data available for longitudinal follow-up Able and willing to provide written informed consent (and authorization for medical record review, as applicable) and to complete registry questionnaires Exclusion Criteria: End-stage kidney disease at baseline (maintenance dialysis) or history of kidney transplant Type 1 diabetes mellitus Known primary kidney disease not primarily attributable to diabetes that, in the investigator's judgment, is expected to drive kidney outcomes (e.g., polycystic kidney disease, active glomerulonephritis, lupus nephritis, vasculitis) Inability to provide informed consent or comply with registry procedures (e.g., no feasible longitudinal follow-up through the participating site)