N13.71 — Vesicoureteral-reflux without reflux nephropathy
N13.71 is a billable, specific ICD-10-CM code for vesicoureteral-reflux without reflux nephropathy. It is valid for submission on a claim.
Excludes1 inherited from the categories above N13.71
These are not written on N13.71, but they bind it: a note on a category applies to every code beneath it. Billing N13.71 with anything listed here is a denial.
Excludes2 inherited from the categories above N13.71
Also inherited, and the opposite of Excludes1: these conditions are not part of N13.71, but a patient can have both, so you may code both.
Other codes that can never be billed with N13.71
These codes carry an Excludes1 note pointing at N13.71. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N13.71 alone.
- N11.1Chronic obstructive pyelonephritis
Risk adjustment
N13.71 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
N13.71 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A56802Billing and Coding: Urodynamics
- A57455Billing and Coding: Urodynamics
How N13.71 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 N13.71.
- Reflux›vesicoureteral›without nephropathy
Code history
N13.71 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share N13.7. If N13.71 is not quite right, the correct code is usually one of these.
Questions about N13.71
- Is N13.71 a billable ICD-10-CM code?
- Yes. N13.71 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does N13.71 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Renal tubulo-interstitial diseases (N10-N16).
- What cannot be coded together with N13.71?
- N13.71 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above N13.71 (N13.7) and apply to it just the same.