N04.9 — Nephrotic syndrome with unspecified morphologic changes

N04.9

ICD-10 Chapter 14: Genitourinary System — illustrative image — Chapter 14: Diseases of the genitourinary system (N00–N99) — illustrative image

What this code means

Nephrotic syndrome is heavy protein leakage through the kidney filters, causing low blood albumin, swelling and raised cholesterol; biopsy type unspecified.

Also called: nephrotic syndrome.

When this code is used

Used for nephrotic syndrome with unspecified morphologic changes.

Where it sits in ICD-10-CM

Code N04.9 belongs to Chapter 14: Diseases of the genitourinary system, which covers codes N00–N99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

Foamy urine

Related anatomy

Kidneys

Watch: related videos

▶ WatchNephrotic syndrome ▶ WatchNephritis and nephrotic syndrome

Frequently asked questions

What is ICD-10-CM code N04.9?

N04.9 is the ICD-10-CM diagnosis code for “Nephrotic syndrome with unspecified morphologic changes”. Nephrotic syndrome is heavy protein leakage through the kidney filters, causing low blood albumin, swelling and raised cholesterol; biopsy type unspecified.

When is code N04.9 used?

Used for nephrotic syndrome with unspecified morphologic changes. It belongs to Chapter 14 of ICD-10-CM (Diseases of the genitourinary system).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.