N11.9
BillableChronic tubulo-interstitial nephritis, unspecified
Chronic tubulo-interstitial nephritis, unspecified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Chronic interstitial nephritis NOS
- Chronic pyelitis NOS
- Chronic pyelonephritis NOS
Includes
Conditions included under this code
- pyelonephritis
- chronic infectious interstitial nephritis
- chronic pyelitis
- chronic 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
Use Additional Code
Additional codes that should follow this code
Related Codes(3)
Related Conditions
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(88)
SNOMED CT
- Pyelitis27174002
- CIN - Chronic interstitial nephritis60926001
- CTIN - Chronic tubulo-interstitial nephritis60926001
- Chronic TIN (tubulointerstitial nephritis)60926001
- Chronic interstitial nephritis60926001
- Chronic tubulo-interstitial nephritis60926001
- Chronic tubulointerstitial nephritis60926001
- CPN - Chronic pyelonephritis63302006
- Chronic pyelonephritis63302006
- Idiopathic chronic interstitial nephritis82112005
- Idiopathic chronic tubulointerstitial nephritis82112005
- Chronic pyelonephritis with medullary necrosis197761005
- Chronic pyelitis197762003
- Chronic urinary tract infection197928006
- Acute on chronic interstitial nephritis702718005
- Acute on chronic tubulointerstitial nephritis702718005
- Ischaemic nephropathy710565001
- Ischemic nephropathy710565001
- Nephropathy due to ischaemia710565001
- Nephropathy due to ischemia710565001
- Chronic tubulointerstitial nephritis due to metabolic disease1144897006
- Chronic tubulointerstitial nephritis due to neoplastic disease1144899009
- Chronic tubulointerstitial nephritis due to ischaemia1144903002
- Chronic tubulointerstitial nephritis due to ischemia1144903002
- Chronic tubulo-interstitial nephritis due to connective tissue disorder1144909003
- Chronic tubulointerstitial nephritis due to connective tissue disorder1144909003
- Chronic tubulointerstitial nephritis following renal transplantation1144941009
UMLS
- CIN - Chronic interstitial nephritisC0238304
- CTIN - Chronic tubulo-interstitial nephritisC0238304
- Chronic TIN (tubulointerstitial nephritis)C0238304
- Chronic interstitial nephritisC0238304
- Chronic interstitial nephritis NOSC0238304
- Chronic tubulo-interstitial nephritisC0238304
- Chronic tubulo-interstitial nephritis, unspecifiedC0238304
- Chronic tubulointerstitial nephritisC0238304
- Chronic tubulointerstitial nephritis (disorder)C0238304
- Interstitial nephritis chronicC0238304
- Nephritis interstitial chronicC0238304
- chronic interstitial nephritisC0238304
- CPN - Chronic pyelonephritisC0085697
- Chronic PyelonephritisC0085697
- Chronic pyelonephritisC0085697
- Chronic pyelonephritis (disorder)C0085697
- Chronic pyelonephritis NOSC0085697
- Pyelonephritis chronicC0085697
- Pyelonephritis chronic NOSC0085697
- chronic pyelonephritisC0085697
- pyelonephritis chronicC0085697
- Chronic pyelitisC0341681
- Chronic pyelitis (disorder)C0341681
- Chronic pyelitis NOSC0341681
- chronic pyelitisC0341681
Clinical Terms
- Acute on chronic interstitial nephritis
- Chronic Pyelonephritis
- chronic pyelitis
- Nephropathy due to ischemia
- Chronic pyelonephritis with medullary necrosis
- Chronic tubulointerstitial nephritis following renal transplantation
- Chronic pyelonephritis (disorder)
- Chronic pyelitis NOS
- pyelonephritis chronic
- Chronic pyelonephritis NOS
- Interstitial nephritis chronic
- Chronic interstitial nephritis NOS
- Chronic TIN (tubulointerstitial nephritis)
- Chronic tubulointerstitial nephritis due to connective tissue disorder
- Chronic tubulointerstitial nephritis (disorder)
- Chronic tubulointerstitial nephritis due to metabolic disease
- CPN - Chronic pyelonephritis
- Idiopathic chronic tubulointerstitial nephritis
- CTIN - Chronic tubulo-interstitial nephritis
- Chronic pyelitis (disorder)
- Idiopathic chronic interstitial nephritis
- CIN - Chronic interstitial nephritis
- Chronic tubulointerstitial nephritis due to ischaemia
- Chronic tubulointerstitial nephritis
- Acute on chronic tubulointerstitial nephritis
- Pyelonephritis chronic NOS
- Chronic urinary tract infection
- Ischemic nephropathy
- Nephritis interstitial chronic
- Ischaemic nephropathy
- Chronic interstitial nephritis
- Nephropathy due to ischaemia
- Chronic tubulointerstitial nephritis due to ischemia
- Pyelitis
- Chronic tubulointerstitial nephritis due to neoplastic disease
- Chronic tubulo-interstitial nephritis due to connective tissue disorder
Frequently Asked Questions
What is the ICD-10 code for chronic tubulo-interstitial nephritis, unspecified?
The ICD-10-CM code for chronic tubulo-interstitial nephritis, unspecified is N11.9. The full clinical description is "Chronic tubulo-interstitial nephritis, unspecified". N11.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code N11.9 mean?
ICD-10-CM code N11.9 represents “Chronic tubulo-interstitial nephritis, unspecified”. 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 N11.9 a billable code?
Yes, N11.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is N11.9 in?
N11.9 is in Chapter 14: Diseases of the Genitourinary System (codes N00-N99).
What codes cannot be used with N11.9?
N11.9 has Excludes1 notes indicating codes that cannot be used together with it, including: pyeloureteritis cystica (N28.85).
Are additional codes required with N11.9?
Yes, when using N11.9, also report: code (B95-B97), to identify infectious agent..
What SNOMED CT codes does N11.9 map to?
N11.9 maps to 14 SNOMED CT concepts: 702718005, 60926001, 63302006, 197762003, 197761005, and 9 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for N11.9?
N11.9 is linked to 3 UMLS Concept Unique Identifiers: C0238304, C0085697, C0341681. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does N11.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like chronic tubulo-interstitial nephritis, unspecified 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 N11.9?
N11.9 maps to the ICD-11 code: GB55.Z (Chronic tubulo-interstitial nephritis, 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.