N11
Non-billableChronic tubulo-interstitial nephritis
Chronic tubulo-interstitial nephritis
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
- 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
Child Codes (4)
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(28)
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 infective interstitial nephritisC0403381
- Chronic infective interstitial nephritis (disorder)C0403381
- chronic infectious interstitial nephritisC0403381
- Chronic pyelitisC0341681
- Chronic pyelitis (disorder)C0341681
- Chronic pyelitis NOSC0341681
- chronic pyelitisC0341681
Frequently Asked Questions
What is the ICD-10 code for chronic tubulo-interstitial nephritis?
The ICD-10-CM code for chronic tubulo-interstitial nephritis is N11. The full clinical description is "Chronic tubulo-interstitial nephritis". N11 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code N11 mean?
ICD-10-CM code N11 represents “Chronic tubulo-interstitial nephritis”. 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 N11 a billable code?
No, N11 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under N11.
What chapter is N11 in?
N11 is in Chapter 14: Diseases of the Genitourinary System (codes N00-N99).
What codes cannot be used with N11?
N11 has Excludes1 notes indicating codes that cannot be used together with it, including: pyeloureteritis cystica (N28.85).
What are the subcategories under N11?
N11 has 4 child codes, including: N11.0 (Nonobstructive reflux-associated chronic pyelonephritis), N11.1 (Chronic obstructive pyelonephritis), N11.8 (Other chronic tubulo-interstitial nephritis), N11.9 (Chronic tubulo-interstitial nephritis, unspecified).
Are additional codes required with N11?
Yes, when using N11, also report: code (B95-B97), to identify infectious agent..
What are the UMLS CUIs for N11?
N11 is linked to 4 UMLS Concept Unique Identifiers: C0238304, C0085697, C0403381, C0341681. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does N11 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like chronic tubulo-interstitial nephritis 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?
N11 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.