ICD-10-CM › N00-N99 › N10-N16 › N13 Obstructive and reflux uropathy › N13.9
Obstructive and reflux uropathy, unspecified
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Obstructive and reflux uropathy, unspecified
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from N13 Obstructive and reflux uropathy
Excludes2 - not included here
- 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)
Inherited from the N10-N16 section Renal tubulo-interstitial diseases (N10-N16)
Excludes1 - never coded here
- pyeloureteritis cystica (N28.85)
Includes
- pyelonephritis
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Icterus
- Cholemia
- Impervious
- Imperforate
- Yellow > jaundice
- Absence > congenital > lumen
- Valve, valvular > congenital NEC
- Blind > tract or tube, congenital NEC
- Stricture > organ or site, congenital NEC
- Constriction > organ or site, congenital NEC
- Obliteration > organ or site, congenital NEC
- Block, blocked > organ or site, congenital NEC
- Stenosis, stenotic > organ or site, congenital NEC
- Occlusion, occluded > organ or site, congenital NEC
- Strangulation, strangulated > organ or site, congenital NEC
- Contraction, contracture, contracted > organ or site, congenital NEC
- Obstruction, obstructed, obstructive > organ or site, congenital NEC
- Uropathy > reflux
- Uropathy > obstructive
- Obstruction, obstructed, obstructive > urinary
- Obstruction, obstructed, obstructive > uropathy
- Obstruction, obstructed, obstructive > urinary > organ or tract
Codes in the same group
| Code | Description | Status |
|---|---|---|
| N13.0 | Hydronephrosis with ureteropelvic junction obstruction | Valid |
| N13.1 | Hydronephrosis with ureteral stricture, not elsewhere classified | Valid |
| N13.2 | Hydronephrosis with renal and ureteral calculous obstruction | Valid |
| N13.3 | Other and unspecified hydronephrosis | Not billable |
| N13.4 | Hydroureter | Valid |
| N13.5 | Crossing vessel and stricture of ureter without hydronephrosis | Valid |
| N13.6 | Pyonephrosis | Valid |
| N13.7 | Vesicoureteral-reflux | Not billable |
| N13.8 | Other obstructive and reflux uropathy | Valid |