Obstructive and reflux uropathy (N13)
Clinical Information
Azotemia - A biochemical abnormality referring to an elevation of BLOOD UREA NITROGEN and CREATININE. Azotemia can be produced by KIDNEY DISEASES or other extrarenal disorders. When azotemia becomes associated with a constellation of clinical signs, it is termed UREMIA.
Hydronephrosis - Abnormal enlargement or swelling of a KIDNEY due to dilation of the KIDNEY CALICES and the KIDNEY PELVIS. It is often associated with obstruction of the URETER or chronic kidney diseases that prevents normal drainage of urine into the URINARY BLADDER.
Pyonephrosis - Distention of KIDNEY with the presence of PUS and suppurative destruction of the renal parenchyma. It is often associated with renal obstruction and can lead to total or nearly total loss of renal function.
Retroperitoneal Fibrosis - A slowly progressive condition of unknown etiology, characterized by deposition of fibrous tissue in the retroperitoneal space compressing the ureters, great vessels, bile duct, and other structures. When associated with abdominal aortic aneurysm, it may be called chronic periaortitis or inflammatory perianeurysmal fibrosis.
Instructional Notations
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- calculus of kidney and ureter without hydronephrosis N20
- congenital obstructive defects of renal pelvis and ureter Q62.0 Q62.3
- hydronephrosis with ureteropelvic junction obstruction Q62.11
- obstructive pyelonephritis N11.1
Diseases of the genitourinary system (N00–N99)
Renal tubulo-interstitial diseases (N10-N16)
N13 Obstructive and reflux uropathy
- N13.0 Hydronephrosis with ureteropelvic junction obstruction
- N13.1 Hydronephrosis with ureteral stricture, not elsewhere classified
- N13.2 Hydronephrosis with renal and ureteral calculous obstruction
N13.3 Other and unspecified hydronephrosis
- N13.30 Unspecified hydronephrosis
- N13.39 Other hydronephrosis
- N13.4 Hydroureter
- N13.5 Crossing vessel and stricture of ureter without hydronephrosis
- N13.6 Pyonephrosis
N13.7 Vesicoureteral-reflux
- N13.70 Vesicoureteral-reflux, unspecified
- N13.71 Vesicoureteral-reflux without reflux nephropathy
N13.72 Vesicoureteral-reflux with reflux nephropathy without hydroureter
- N13.721 Vesicoureteral-reflux with reflux nephropathy without hydroureter, unilateral UPDATED CODE
- N13.722 Vesicoureteral-reflux with reflux nephropathy without hydroureter, bilateral UPDATED CODE
- N13.729 Vesicoureteral-reflux with reflux nephropathy without hydroureter, unspecified
N13.73 Vesicoureteral-reflux with reflux nephropathy with hydroureter
- N13.731 Vesicoureteral-reflux with reflux nephropathy with hydroureter, unilateral UPDATED CODE
- N13.732 Vesicoureteral-reflux with reflux nephropathy with hydroureter, bilateral UPDATED CODE
- N13.739 Vesicoureteral-reflux with reflux nephropathy with hydroureter, unspecified
- N13.8 Other obstructive and reflux uropathy
- N13.9 Obstructive and reflux uropathy, unspecified
Obstructive and reflux uropathy (N13)