N01
Non-billableRapidly progressive nephritic syndrome
N01 is the ICD-10-CM code for Rapidly progressive nephritic syndrome. It is a non-billable category code — use a more specific child code such as N01.0 for billing.
- Status
- Header (non-billable)
- Chapter
- N00-N99
- Subcodes
- 11
- Edition
- FY2026
N00-N99 Diseases of the genitourinary system
What this means — in plain language
MedlinePlus · NIHYou have two kidneys, each about the size of your fist. They are near the middle of your back, just below the rib cage. Inside each kidney there are about a million tiny structures called nephrons. They filter your blood. They remove wastes and extra water, which become urine. The urine flows through tubes called ureters. It goes to your bladder, which stores the urine until you go to the bathroom. Most kidney…
Read more about Kidney Diseases at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •rapidly progressive glomerular disease
- •rapidly progressive glomerulonephritis
- •rapidly progressive nephritis
Excludes1 — not coded here
- •nephritic syndrome NOS (N05.-)
Frequently asked questions
- What is ICD-10 code N01?
- N01 is the ICD-10-CM code for "Rapidly progressive nephritic syndrome". It falls under N00-N99 Diseases of the genitourinary system.
- Is N01 a billable code?
- No — N01 is a non-billable header code. Use a more specific child code (such as N01.0) for billing.
- What is excluded from N01?
- Excludes1 (not coded here): nephritic syndrome NOS (N05.-).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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