Obstructive and reflux uropathy (N13)

    • ICD-10 Index

      • Diseases of the genitourinary system (N00–N99)

        • Renal tubulo-interstitial diseases (N10-N16)

            • Obstructive and reflux uropathy (N13)
            • N13 - Obstructive and reflux uropathy NON-BILLABLE CODE
            • N13.0 - Hydronephrosis with ureteropelvic junction obstruction BILLABLE CODE
            • N13.1 - Hydronephrosis w ureteral stricture, NEC BILLABLE CODE
            • N13.2 - Hydronephrosis with renal and ureteral calculous obstruction BILLABLE CODE
            • N13.3 - Other and unspecified hydronephrosis NON-BILLABLE CODE
            • N13.30 - Unspecified hydronephrosis BILLABLE CODE
            • N13.39 - Other hydronephrosis BILLABLE CODE
            • N13.4 - Hydroureter BILLABLE CODE
            • N13.5 - Crossing vessel and stricture of ureter w/o hydronephrosis BILLABLE CODE
            • N13.6 - Pyonephrosis BILLABLE CODE
            • N13.7 - Vesicoureteral-reflux NON-BILLABLE CODE
            • N13.70 - Vesicoureteral-reflux, unspecified BILLABLE CODE
            • N13.71 - Vesicoureteral-reflux without reflux nephropathy BILLABLE CODE
            • N13.72 - Vesicoureteral-reflux w reflux nephropathy w/o hydroureter NON-BILLABLE CODE
            • N13.721 - Vesicoureter-reflux w reflux neuropath w/o hydrourt, unil BILLABLE CODE
            • N13.722 - Vesicoureter-reflux w reflux neuropath w/o hydrourt, bi BILLABLE CODE
            • N13.729 - Vesicoureter-reflux w reflux nephropathy w/o hydrourt, unsp BILLABLE CODE
            • N13.73 - Vesicoureteral-reflux w reflux nephropathy with hydroureter NON-BILLABLE CODE
            • N13.731 - Vesicoureter-reflux w reflux neuropath w hydrourt, unil BILLABLE CODE
            • N13.732 - Vesicoureter-reflux w reflux neuropath w hydrourt, bilateral BILLABLE CODE
            • N13.739 - Vesicoureter-reflux w reflux nephropathy w hydroureter, unsp BILLABLE CODE
            • N13.8 - Other obstructive and reflux uropathy BILLABLE CODE
            • N13.9 - Obstructive and reflux uropathy, unspecified BILLABLE CODE

Clinical Information for Obstructive and reflux uropathy (N13)

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.

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.

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.

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.

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 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