N13
Non-billableObstructive and reflux uropathy
Obstructive and reflux uropathy
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- pyelonephritis
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •calculus of kidney and ureter without hydronephrosisN20
- •congenital obstructive defects of renal pelvis and ureterQ62.0-Q62.3
- •hydronephrosis with ureteropelvic junction obstructionQ62.11
- •obstructive pyelonephritisN11.1
Child Codes (10)
N13.0Hydronephrosis with ureteropelvic junction obstruction
N13.1Hydronephrosis w ureteral stricture, NEC
N13.2Hydronephrosis with renal and ureteral calculous obstruction
N13.3Other and unspecified hydronephrosis
N13.4Hydroureter
N13.5Crossing vessel and stricture of ureter w/o hydronephrosis
N13.6Pyonephrosis
N13.7Vesicoureteral-reflux
N13.8Other obstructive and reflux uropathy
N13.9Obstructive and reflux uropathy, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(2)
Frequently Asked Questions
What is the ICD-10 code for obstructive and reflux uropathy?
The ICD-10-CM code for obstructive and reflux uropathy is N13. The full clinical description is "Obstructive and reflux uropathy". N13 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code N13 mean?
ICD-10-CM code N13 represents “Obstructive and reflux uropathy”. It is classified under Chapter 14: Diseases of the Genitourinary System and is a non-billable header code. Use a more specific child code for billing purposes.
Is N13 a billable code?
No, N13 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 10 child codes under N13.
What chapter is N13 in?
N13 is in Chapter 14: Diseases of the Genitourinary System (codes N00-N99).
What codes cannot be used with N13?
N13 has Excludes1 notes indicating codes that cannot be used together with it, including: pyeloureteritis cystica (N28.85).
What are the subcategories under N13?
N13 has 10 child codes, including: N13.0 (Hydronephrosis with ureteropelvic junction obstruction), N13.1 (Hydronephrosis w ureteral stricture, NEC), N13.2 (Hydronephrosis with renal and ureteral calculous obstruction), N13.3 (Other and unspecified hydronephrosis), and 6 more.
What are the UMLS CUIs for N13?
N13 is linked to 1 UMLS Concept Unique Identifier: C0477732. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does N13 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like obstructive and reflux uropathy affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of N13?
N13 maps to the ICD-11 code: GB56.Z (Obstructive or reflux nephropathy, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.