N04.20 – Nephrotic syndrome with diffuse membranous glomerulonephritis, unspecified

ICD-10-CM 2027 diagnosis code · Glomerular diseases

Billable code

ICD-10-CM code N04.20

Code: N04.20 (claims format: N0420)
Description: Nephrotic syndrome with diffuse membranous glomerulonephritis, unspecified
Short description: Nephrotic syndrome with diffuse membranous glomrlneph, unsp
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 14. Diseases of the genitourinary system (N00-N99)
Block: N00-N08 Glomerular diseases
Parent codes: N04 › N04.2

Notes for N04.20

Applicable to:

Membranous nephropathy NOS with nephrotic syndrome

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

N04 – Nephrotic syndrome

Includes:

congenital nephrotic syndrome
lipoid nephrosis

Block N00-N08

Excludes1 (not coded here):

hypertensive chronic kidney disease (I12.-)

Code also:

any associated kidney failure (N17-N19).

Index terms for N04.20

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in N04.2

Frequently asked questions

What is ICD-10 code N04.20?

N04.20 is the ICD-10-CM code for nephrotic syndrome with diffuse membranous glomerulonephritis, unspecified, in the block N00-N08 (Glomerular diseases).

Is N04.20 a billable code?

Yes. N04.20 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does N04.20 belong to?

It belongs to category N04 – Nephrotic syndrome.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.