Proof of chronic renal disease.

§ 79.67 Proof of chronic renal disease. (a) In determining whether a claimant developed chronic renal disease following pertinent employment as an ore transporter, the Assistant Director shall resolve all reasonable doubt in favor of the claimant. A conclusion that a claimant developed chronic renal disease must be supported by medical documentation. (b) A claimant or beneficiary may submit any of the following forms of medical documentation in support of a claim that the claimant contracted chronic renal disease. (1) Pathology report of tissue biopsy; (2) If laboratory or radiographic tests exist: (i) Abnormal plasma creatinine values; (ii) Abnormal glomerular filtration rate (by either measured creatinine or iothalamate clearance or calculated by MDRD equation); and (iii) Renal tubular dysfunction as evidenced by: (A) Glycosuria in the absence of diabetes mellitus; (B) Proteinuria less than one gram daily without other known etiology; or (C) Hyperphosphaturia, aminoaciduria, B–2 microglobinuria or alkaline phosphaturia or other marker of proximal tubular injury; or (iv) Radiographic evidence of chronic renal disease; (3) Autopsy report; (4) Physician summary report; (5) Hospital discharge summary report; (6) Hospital admitting report; or (7) Death certificate, provided that it is signed by a physician at the time of death.