N03
Non-billableChronic nephritic syndrome
Chronic nephritic syndrome
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
- chronic glomerular disease
- chronic glomerulonephritis
- chronic nephritis
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
Code Also
A second code may be required; sequencing depends on circumstances
Child Codes (11)
N03.0Chronic nephritic syndrome with minor glomerular abnormality
N03.1Chronic neph syndrome w focal and seg glomerular lesions
N03.2Chronic nephritic syndrome w diffuse membranous glomrlneph
N03.3Chronic neph syndrome w diffuse mesangial prolif glomrlneph
N03.4Chronic neph syndrome w diffuse endocaplry prolif glomrlneph
N03.5Chronic nephritic syndrome w diffuse mesangiocap glomrlneph
N03.6Chronic nephritic syndrome with dense deposit disease
N03.7Chronic nephritic syndrome w diffuse crescentic glomrlneph
N03.8Chronic nephritic syndrome with other morphologic changes
N03.9Chronic nephritic syndrome with unsp morphologic changes
N03.AChronic nephritic syndrome with C3 glomerulonephritis
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(12)
UMLS
- CGN - Chronic glomerulonephritisC0152451
- Chronic GlomerulonephritisC0152451
- Chronic glomerulonephritisC0152451
- Chronic glomerulonephritis (disorder)C0152451
- Glomerulonephritis chronicC0152451
- chronic glomerulonephritisC0152451
- Chronic nephritic syndromeC0677052
- Chronic nephritic syndrome (disorder)C0677052
- Chronic nephritisC2364010
- Nephritis, chronicC2364010
- chronic nephritisC2364010
- chronic glomerular diseaseC1398786
Frequently Asked Questions
What is the ICD-10 code for chronic nephritic syndrome?
The ICD-10-CM code for chronic nephritic syndrome is N03. The full clinical description is "Chronic nephritic syndrome". N03 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code N03 mean?
ICD-10-CM code N03 represents “Chronic nephritic syndrome”. 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 N03 a billable code?
No, N03 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 11 child codes under N03.
What chapter is N03 in?
N03 is in Chapter 14: Diseases of the Genitourinary System (codes N00-N99).
What codes cannot be used with N03?
N03 has Excludes1 notes indicating codes that cannot be used together with it, including: hypertensive chronic kidney disease (I12.-); chronic tubulo-interstitial nephritis (N11.-); diffuse sclerosing glomerulonephritis (N05.8-); and 1 more.
What are the subcategories under N03?
N03 has 11 child codes, including: N03.0 (Chronic nephritic syndrome with minor glomerular abnormality), N03.1 (Chronic neph syndrome w focal and seg glomerular lesions), N03.2 (Chronic nephritic syndrome w diffuse membranous glomrlneph), N03.3 (Chronic neph syndrome w diffuse mesangial prolif glomrlneph), and 7 more.
What are the UMLS CUIs for N03?
N03 is linked to 4 UMLS Concept Unique Identifiers: C0152451, C0677052, C2364010, C1398786. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does N03 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like chronic nephritic syndrome 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 N03?
N03 maps to the ICD-11 code: GB40&XT8W.
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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.