N13.5 Crossing vessel and stricture of ureter without hydronephrosis
The ICD-10-CM code for Crossing vessel and stricture of ureter without hydronephrosis is N13.5 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- N10-N16: Renal tubulo-interstitial diseases (N10-N16)
- Category N13
- 23 codes (18 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to N13.5:
- Ormond's disease (with ureteral obstruction)
- Intussusception (bowel) (colon) (enteric) (ileocecal) (ileocolic) (intestine) ( rectum) › ureter (with obstruction)
- Angulation › ureter
- Contraction (s), contracture, contracted › ureterovesical orifice (postinfectional)
- Compression › ureter
- Disease, diseased › Ormond's
- Fasciitis › perirenal (with ureteral obstruction)
- Constriction › ureter
Inclusion Terms
- Kinking and stricture of ureter without hydronephrosis
U.S. Hospital Utilization
- An estimated 14,370 U.S. inpatient stays in 2023 included N13.5 among the documented diagnoses.
- 2,230 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
CKD staging and code assignment (N18.-)The ICD-10-CM classifies CKD based on severity. The severity of CKD is designated by stages 1-5. Stage 2, code N18.2, equates to mild CKD; stage 3, codes N18.30-N18.32, equate to moderate CKD; and stage 4, code N18.4, equates to severe CKD. Code N18.6, End stage renal disease (ESRD), is assigned when the provider has documented end- stage renal disease (ESRD).
CKD stage plus ESRD: assign N18.6 onlyIf both a stage of CKD and ESRD are documented, assign code N18.6 only.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026