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N00 ICD-10-CA category: Acute nephritic syndrome

N00 isn’t a code on its own. Choose one of the 10 codes beneath it, the one the documentation supports.

Official description

N00

Acute nephritic syndrome

ICD-10-CA · Canada

Codes in N00

N00 isn’t a code on its own. Open the code that matches what the note documents.

N00.0Acute nephritic syndrome, minor glomerular abnormalityN00.1Acute nephritic syndrome, focal and segmental glomerular lesionsN00.2Acute nephritic syndrome, diffuse membranous glomerulonephritisN00.3Acute nephritic syndrome, diffuse mesangial proliferative glomerulonephritisN00.4Acute nephritic syndrome, diffuse endocapillary proliferative glomerulonephritisN00.5Acute nephritic syndrome, diffuse mesangiocapillary glomerulonephritisN00.6Acute nephritic syndrome, dense deposit diseaseN00.7Acute nephritic syndrome, diffuse crescentic glomerulonephritisN00.8Acute nephritic syndrome, otherN00.9Acute nephritic syndrome, unspecified

Notes for N00

As CIHI prints them, with any note N00 takes from the headings above it.

Includes

  • Acute:• glomerular disease• glomerulonephritis• nephritis• renal disease NOS

Use additional code

Add a code for this detail when the note documents it.

Excludes

Conditions classified elsewhere.

  • Acute tubulo-interstitial nephritis (N10)nephritic syndrome NOS (N05.-)
  • Hypertensive renal disease (I12)From N00-N08 Glomerular diseases
  • Certain conditions originating in the perinatal period (P00-P96)certain infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 14: Diseases of the genitourinary system (N00-N99)

Note

  • See note under chapter heading (N00-N08) for fourth character subdivision.
  • The following fourth-character subdivisions classify morphological changes and are for use with categories N00 - N07. Subdivisions .0 - .8 should not normally be used unless these have been specifically identified (e.g. by renal biopsy or autopsy). The three-character categories relate to clinical syndromes..0 Minor glomerular abnormalityMinimal change lesion.1 Focal and segmental glomerular lesionsGlomerulonephritis, Hyalinosis, Sclerosis — focal and segmental.2 Diffuse membranous glomerulonephritis.3 Diffuse mesangial proliferative glomerulonephritis.4 Diffuse endocapillary proliferative glomerulonephritis.5 Diffuse mesangiocapillary glomerulonephritisMembranoproliferative glomerulonephritis, types 1 and 3, or NOS.6 Dense deposit diseaseMembranoproliferative glomerulonephritis, type 2.7 Diffuse crescentic glomerulonephritisExtracapillary glomerulonephritis.8 OtherProliferative glomerulonephritis NOS.9 UnspecifiedFrom N00-N08 Glomerular diseases

Where N00 sits

  1. 1ChapterChapter 14: Diseases of the genitourinary system (N00-N99)
  2. 2Block N00-N08Glomerular diseases
  3. 3Category N00Acute nephritic syndrome

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See N00 in the CIHI source

Frequently asked questions

Is N00 a valid ICD-10-CA code?

No. N00 (Acute nephritic syndrome) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 10 codes; record the one the documentation supports.

Where is N00 in ICD-10-CA?

N00 sits under N00-N08 Glomerular diseases, within Chapter 14: Diseases of the genitourinary system (N00-N99).

What coding notes apply to N00?

ICD-10-CA lists Note, Includes, Excludes, Use additional code notes for N00, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside N00

N01Rapidly progressive nephritic syndromeN02Recurrent and persistent haematuriaN03Chronic nephritic syndromeN04Nephrotic syndromeN05Unspecified nephritic syndromeN06Isolated proteinuria with specified morphological lesionN07Hereditary nephropathy, not elsewhere classifiedN08Glomerular disorders in diseases classified elsewhere