ICD-10-CM 2027
ICD-10 code for ureter kink
From the official ICD-10-CM alphabetic index entry “Kink, kinking › ureter (pelvic junction)”. Page updated September 29, 2026.
About coding ureter kink
The ICD-10-CM code for ureter kink is N13.5 (Crossing vessel and stricture of ureter without hydronephrosis). The official index lists 4 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on N13.5.
Within N13, choose N13.5 (Crossing vessel and stricture of ureter without hydronephrosis) only when documentation doesn't support a more specific option: hydronephrosis with ureteropelvic junction obstruction (N13.0), hydronephrosis with ureteral stricture, not elsewhere classified (N13.1), hydronephrosis with renal and ureteral calculous obstruction (N13.2), other and unspecified hydronephrosis (N13.3), hydroureter (N13.4), Pyonephrosis (N13.6), Vesicoureteral-reflux (N13.7), other obstructive and reflux uropathy (N13.8) and 1 more.
Don't report N13.5 together with the conditions in its Excludes1 note: Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific ureter kink codes (official index)
Don't confuse with (Excludes1 for N13.5)
- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
Common questions about ureter kink ICD-10 codes
What is the ICD-10 code for ureter kink?
- N13.5 — Crossing vessel and stricture of ureter without hydronephrosis. More specific codes apply when the documentation supports them: N13.1, N13.6, N11.1, Q62.39.
What is the ICD-10 code for congenital ureter kink?
- Q62.39 — Other obstructive defects of renal pelvis and ureter.
Is N13.5 billable?
- Yes. N13.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N13.5 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N13.5 as a principal diagnosis.
Is N13.5 a CC or MCC?
- No. N13.5 is neither a CC nor an MCC under MS-DRG v44.0.