N03.1
ICD-10BillableChronic neph syndrome w focal and seg glomerular lesions
Official ICD-10-CM descriptor (FY2026)
Chronic nephritic syndrome with focal and segmental glomerular lesions
N03.1 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Chronic nephritic syndrome with focal and segmental hyalinosis
- Chronic nephritic syndrome with focal and segmental sclerosis
- Chronic nephritic syndrome with focal glomerulonephritis
Related codes in N03
- N03.0Chronic nephritic syndrome with minor glomerular abnormality
- 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
Where this code sits
- Parent code
- N03
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.