Table 1.
ICD-9a codes used to identify cases and pre-existing renal disease
| Description | Pre-existing renal disease | Cases |
|---|---|---|
| Hypertensive renal disease |
403.XX |
|
| Acute glomerulonephritis |
580.XX |
580.89 |
| Nephrotic syndrome |
581.XX |
|
| Chronic glomerulonephritis |
582.XX |
|
| Nephritis and nephropathy |
583.XX |
583.81, 583.89, 583.9 |
| Acute renal failure |
584.XX |
584.8, 584.9 |
| Chronic renal failure |
585.XX |
|
| Renal failure, unspecified |
586.XX |
586.XX |
| Impaired renal function disease NECb |
588.89 |
|
| Unspecified disorder of kidney and ureter |
593.9 |
593.9 |
| Kidney transplant |
V420 |
|
| Dialysis | V451, V56X |
aICD-9 International Classification of Diseases, Ninth Revision.
bNEC not elsewhere classifiable.