N13.8 — Other obstructive and reflux uropathy
N13.8 is a billable, specific ICD-10-CM code for other obstructive and reflux uropathy. It is valid for submission on a claim.
Code first
The underlying condition must be sequenced before this code.
- , if applicable, any causal condition, such as:
- enlarged prostate (N40.1)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Urinary tract obstruction due to specified cause
Risk adjustment
N13.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
N13.8 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A55336Billing and Coding: Retroperitoneal Ultrasound
- A56421Billing and Coding: CT of the Abdomen and Pelvis
How N13.8 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to N13.8.
- Dietl's crisis
- Anuria›postrenal
- Crisis›Dietl's
- Extravasation›pelvicalyceal
- Extravasation›pyelosinus
- Nephropathy›obstructive
- Ovary, ovarian›vein syndrome
- Tortuous›ureter
- Obstruction, obstructed, obstructive›renal›outflow
- Obstruction, obstructed, obstructive›urinary›specified NEC
- Uropathy›obstructive›specified NEC
- Uropathy›reflux›specified NEC
Related codes at this level
Codes that share N13. If N13.8 is not quite right, the correct code is usually one of these.
- N13.0Hydronephrosis with ureteropelvic junction obstruction
- N13.1Hydronephrosis with ureteral stricture, not elsewhere classified
- N13.2Hydronephrosis with renal and ureteral calculous obstruction
- N13.3Other and unspecified hydronephrosis
- N13.4Hydroureter
- N13.5Crossing vessel and stricture of ureter without hydronephrosis
- N13.6Pyonephrosis
- N13.7Vesicoureteral-reflux
- N13.9Obstructive and reflux uropathy, unspecified
Questions about N13.8
- Is N13.8 a billable ICD-10-CM code?
- Yes. N13.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does N13.8 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Renal tubulo-interstitial diseases (N10-N16).