N13.6
BillablePyonephrosis
Pyonephrosis
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- •Conditions in with infectionN13.0-N13.5
- Obstructive uropathy with infection
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
Use Additional Code
Additional codes that should follow this code
Related Codes(9)
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
N13.7Vesicoureteral-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(44)
SNOMED CT
- Acute pyonephrosis with renal medullary necrosis7448003
- Pyonephrosis48631008
- CPN - Chronic pyelonephritis63302006
- Chronic pyelonephritis63302006
- Acute pyonephrosis without renal medullary necrosis85495007
- Chronic pyonephrosis197763008
- Acute pyonephrosis197770008
- Pyelonephritis associated with another disorder197782004
- Secondary pyelonephritis197782004
- Recurrent UTI - urinary tract infection197927001
- Recurrent urinary tract infection197927001
- Chronic urinary tract infection197928006
- Recurrent obstructive pyelonephritis423322005
- Recurrent pyelonephritis due to obstruction of urinary tract423322005
- Obstructive pyelonephritis4181000119109
- Pyelonephritis due to obstruction of urinary tract4181000119109
UMLS
Clinical Terms
- Secondary pyelonephritis
- Pyelonephritis due to obstruction of urinary tract
- Chronic pyelonephritis
- Pyelonephritis associated with another disorder
- Acute pyonephrosis without renal medullary necrosis
- Hydronephrosis, Infected
- Recurrent obstructive pyelonephritis
- Recurrent UTI - urinary tract infection
- CPN - Chronic pyelonephritis
- Acute pyonephrosis with renal medullary necrosis
- Infected Hydronephrosis
- Chronic pyonephrosis
- Conditions in N13.0-N13.5 with infection
- Obstructive uropathy with infection
- Pyonephrosis (disorder)
- Obstructive pyelonephritis
- Recurrent pyelonephritis due to obstruction of urinary tract
- Chronic urinary tract infection
- Acute pyonephrosis
- Recurrent urinary tract infection
- Pyonephrosis NOS
Frequently Asked Questions
What is the ICD-10 code for pyonephrosis?
The ICD-10-CM code for pyonephrosis is N13.6. The full clinical description is "Pyonephrosis". N13.6 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code N13.6 mean?
ICD-10-CM code N13.6 represents “Pyonephrosis”. It is classified under Chapter 14: Diseases of the Genitourinary System and is a billable/specific code that can be used on a claim.
Is N13.6 a billable code?
Yes, N13.6 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is N13.6 in?
N13.6 is in Chapter 14: Diseases of the Genitourinary System (codes N00-N99).
What codes cannot be used with N13.6?
N13.6 has Excludes1 notes indicating codes that cannot be used together with it, including: pyeloureteritis cystica (N28.85).
Are additional codes required with N13.6?
Yes, when using N13.6, also report: code (B95-B97), to identify infectious agent..
What SNOMED CT codes does N13.6 map to?
N13.6 maps to 11 SNOMED CT concepts: 197770008, 7448003, 85495007, 63302006, 197763008, and 6 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for N13.6?
N13.6 is linked to 3 UMLS Concept Unique Identifiers: C4268883, C0034216, C2902941. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does N13.6 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like pyonephrosis 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 N13.6?
N13.6 maps to the ICD-11 code: GB58 (Pyonephrosis).
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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.