MCMedicalCodingSoftware
N00

N00: Acute nephritic syndrome

Non-billable headerICD-10-CM

N00 is a non-billable header ICD-10-CM code for acute nephritic syndrome. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • acute tubulo-interstitial nephritis (N10)
  • nephritic syndrome NOS (N05.-)

Includes

Conditions this code covers.

  • acute glomerular disease
  • acute glomerulonephritis
  • acute nephritis

Other codes that can never be billed with N00

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • N00.5Acute nephritic syndrome with diffuse mesangiocapillary glomerulonephritis
  • N00.AAcute nephritic syndrome with C3 glomerulonephritis

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead N00

12 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.