Is N04 a billable code?
No. N04 is a header code that groups 16 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
N04: Nephrotic syndrome
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
N04 groups related diagnoses under nephrotic syndrome. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under N04
- N04.0Nephrotic syndrome with minor glomerular abnormality
- N04.1Nephrotic syndrome with focal and segmental glomerular lesions
- N04.20Nephrotic syndrome with diffuse membranous glomerulonephritis, unspecified
- N04.21Primary membranous nephropathy with nephrotic syndrome
- N04.22Secondary membranous nephropathy with nephrotic syndrome
- N04.29Other nephrotic syndrome with diffuse membranous glomerulonephritis
- N04.3Nephrotic syndrome with diffuse mesangial proliferative glomerulonephritis
- N04.4Nephrotic syndrome with diffuse endocapillary proliferative glomerulonephritis
- N04.5Nephrotic syndrome with diffuse mesangiocapillary glomerulonephritis
- N04.6Nephrotic syndrome with dense deposit disease
- N04.7Nephrotic syndrome with diffuse crescentic glomerulonephritis
- N04.8Nephrotic syndrome with other morphologic changes
- N04.9Nephrotic syndrome with unspecified morphologic changes
- N04.ANephrotic syndrome with C3 glomerulonephritis
- N04.B1Nephrotic syndrome with idiopathic immune complex membranoproliferative glomerulonephritis (IC-MPGN)
- N04.B2Nephrotic syndrome with secondary immune complex membranoproliferative glomerulonephritis (IC-MPGN)
N04 questions
What does N04 mean?
N04 is the ICD-10-CM code for Nephrotic syndrome. It is in chapter 14, Diseases of the genitourinary system (N00-N99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.