U.S. ICD-10-CM · FY 2027

N00 ICD-10-CM Code: Acute nephritic syndrome

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

N00

Acute nephritic syndrome

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where N00 sits

  1. 1

    Chapter 14

    Diseases of the genitourinary system (N00-N99)

  2. 2

    Section

    Glomerular diseases (N00-N08)

  3. 3

    Category N00

    Acute nephritic syndrome

  4. 4

    Code N00

    Acute nephritic syndrome

More specific choices

Codes under N00

N00 is a non-billable category. Choose the child code that best matches the documented diagnosis.

N00.0

Acute nephritic syndrome with minor glomerular abnormality

N00.1

Acute nephritic syndrome with focal and segmental glomerular lesions

N00.2

Acute nephritic syndrome with diffuse membranous glomerulonephritis

N00.3

Acute nephritic syndrome with diffuse mesangial proliferative glomerulonephritis

N00.4

Acute nephritic syndrome with diffuse endocapillary proliferative glomerulonephritis

N00.5

Acute nephritic syndrome with diffuse mesangiocapillary glomerulonephritis

N00.6

Acute nephritic syndrome with dense deposit disease

N00.7

Acute nephritic syndrome with diffuse crescentic glomerulonephritis

N00.8

Acute nephritic syndrome with other morphologic changes

N00.9

Acute nephritic syndrome with unspecified morphologic changes

N00.A

Acute nephritic syndrome with C3 glomerulonephritis

N00.B

Acute nephritic syndrome with immune complex membranoproliferative glomerulonephritis

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for N00.

Code first

No “code first” instruction is listed for N00.

Use additional code

No “use additional code” instruction is listed for N00.

Excludes1

Conditions that should not be reported together with this code.

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

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for N00.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code N00 mean?

N00 is the FY 2027 U.S. ICD-10-CM code for “Acute nephritic syndrome.”

Is N00 a billable or specific ICD-10-CM code?

No. N00 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is N00 located in ICD-10-CM?

N00 is listed in Chapter 14, Diseases of the genitourinary system (N00-N99), within Glomerular diseases (N00-N08) (N00–N08), under category N00, Acute nephritic syndrome.

What coding notes are listed for N00?

No inclusion terms are listed for N00 in this reference record. No code-first instruction is listed. Excludes1 notes: acute tubulo-interstitial nephritis (N10); nephritic syndrome NOS (N05.-). No Excludes2 note is listed.

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