N13
⚠ Non-billable
Obstructive and reflux uropathy
ICD-10-CM · FY2026 · Diseases of the Genitourinary System
Code
N13
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Genitourinary System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code N13?
ICD-10-CM code N13 represents Obstructive and reflux uropathy. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Genitourinary System chapter, effective October 1, 2025 – September 30, 2026.
Is N13 billable?
No. N13 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is N13 in?
N13 belongs to the Diseases of the Genitourinary System chapter (N00–N99) of ICD-10-CM.
Related codes in the N13 category
N13.0
Hydronephrosis with ureteropelvic junction obstruction
Billable
N13.1
Hydronephrosis with ureteral stricture, not elsewhere classified
Billable
N13.2
Hydronephrosis with renal and ureteral calculous obstruction
Billable
N13.3
Other and unspecified hydronephrosis
Non-billable
N13.4
Hydroureter
Billable
N13.5
Crossing vessel and stricture of ureter without hydronephrosis
Billable
N13.6
Pyonephrosis
Billable
N13.7
Vesicoureteral-reflux
Non-billable
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