N13
Header — not billableObstructive and reflux uropathy
The ICD-10 code for obstructive and reflux uropathy is N13.
N13 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 10 more specific codes below.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under N13
- 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 hydronephrosisnon-billable header
- N13.4Hydroureter
- N13.5Crossing vessel and stricture of ureter without hydronephrosis
- N13.6Pyonephrosis
- N13.7Vesicoureteral-refluxnon-billable header
- N13.8Other obstructive and reflux uropathy
- N13.9Obstructive and reflux uropathy, unspecified
Related codes in this category
- N10Acute pyelonephritis
- N11Chronic tubulo-interstitial nephritisnon-billable header
- N12Tubulo-interstitial nephritis, not specified as acute or chronic
- N14Drug- and heavy-metal-induced tubulo-interstitial and tubular conditionsnon-billable header
- N15Other renal tubulo-interstitial diseasesnon-billable header
- N16Renal tubulo-interstitial disorders in diseases classified elsewhere
- N13Obstructive and reflux uropathynon-billable header