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N05

Non-billable

Unspecified nephritic syndrome

N05 is the ICD-10-CM code for Unspecified nephritic syndrome. It is a non-billable category code — use a more specific child code such as N05.0 for billing.

Status
Header (non-billable)
Chapter
N00-N99
Subcodes
11
Edition
FY2026

N00-N99 Diseases of the genitourinary system

Includes

  • •glomerular disease NOS
  • •glomerulonephritis NOS
  • •nephritis NOS
  • •nephropathy NOS and renal disease NOS with morphological lesion specified in .0-.8

Excludes1 — not coded here

  • •nephropathy NOS with no stated morphological lesion (N28.9)
  • •renal disease NOS with no stated morphological lesion (N28.9)
  • •tubulo-interstitial nephritis NOS (N12)

Frequently asked questions

What is ICD-10 code N05?
N05 is the ICD-10-CM code for "Unspecified nephritic syndrome". It falls under N00-N99 Diseases of the genitourinary system.
Is N05 a billable code?
No — N05 is a non-billable header code. Use a more specific child code (such as N05.0) for billing.
What are the subcodes of N05?
N05 has 11 more specific child codes, including N05.0, N05.1, N05.2.
What is excluded from N05?
Excludes1 (not coded here): nephropathy NOS with no stated morphological lesion (N28.9); renal disease NOS with no stated morphological lesion (N28.9); tubulo-interstitial nephritis NOS (N12).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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