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ICD10BillableValid for clinical use

ICD-10 Code N00.9: Acute nephritic syndrome with unspecified morphologic changes

N00.9 is a billable ICD-10 diagnosis code used to classify Acute nephritic syndrome with unspecified morphologic changes in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

When is it used?

  • May be used when a clinician documents acute nephritic syndrome with unspecified morphologic changes in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
14Diseases of the genitourinary system (N00-N99)
block
N00-N08Glomerular diseases
category
N00Acute nephritic syndrome
currentN00

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

UrologistGynecologist

Related codes

N00.0Acute nephritic syndrome with minor glomerular abnormalitycodeN00.1Acute nephritic syndrome with focal and segmental glomerular lesionscodeN00.2Acute nephritic syndrome with diffuse membranous glomerulonephritiscodeN00.3Acute nephritic syndrome with diffuse mesangial proliferative glomerulonephritiscodeN00.4Acute nephritic syndrome with diffuse endocapillary proliferative glomerulonephritiscodeN00.5Acute nephritic syndrome with diffuse mesangiocapillary glomerulonephritiscodeN00.6Acute nephritic syndrome with dense deposit diseasecodeN00.7Acute nephritic syndrome with diffuse crescentic glomerulonephritiscodeN00.8Acute nephritic syndrome with other morphologic changescodeN00.AAcute nephritic syndrome with C3 glomerulonephritiscodeN00.BAcute nephritic syndrome with immune complex membranoproliferative glomerulonephritiscategory

Sibling codes

N00.0Acute nephritic syndrome with minor glomerular abnormalitybillableN00.1Acute nephritic syndrome with focal and segmental glomerular lesionsbillableN00.2Acute nephritic syndrome with diffuse membranous glomerulonephritisbillableN00.3Acute nephritic syndrome with diffuse mesangial proliferative glomerulonephritisbillableN00.4Acute nephritic syndrome with diffuse endocapillary proliferative glomerulonephritisbillableN00.5Acute nephritic syndrome with diffuse mesangiocapillary glomerulonephritisbillableN00.6Acute nephritic syndrome with dense deposit diseasebillableN00.7Acute nephritic syndrome with diffuse crescentic glomerulonephritisbillableN00.8Acute nephritic syndrome with other morphologic changesbillableN00.AAcute nephritic syndrome with C3 glomerulonephritisbillableN00.BAcute nephritic syndrome with immune complex membranoproliferative glomerulonephritis

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
N00.9

Common synonyms

Acute nephritic syndrome with unspecified morphologic changesAcute nephritic syndrome with morphologic changes

Frequently asked questions

Code details

CodeN00.9
SystemICD10
Display nameAcute nephritic syndrome with unspecified morphologic changes
ChapterDiseases of the genitourinary system (N00-N99)
BlockGlomerular diseases

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
GlomerulonephritisGlomerulonephritisNephritis, nephritic(albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic)Nephritis, nephritic(albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic)Nephritis, nephritic(albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic)Nephritis, nephritic(albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic)Syndrome

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.