What does ICD-10 code N05 mean?

ICD-10 code N05 is the standardized code used for unspecified nephritic syndrome in medical records and coding systems.

When is ICD-10 code N05 used?

Doctors, hospitals, and insurers may use ICD-10 code N05 when recording unspecified nephritic syndrome in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code N05 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code N05: Unspecified nephritic syndrome

Name: ICD-10 Code N05: Unspecified nephritic syndrome
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:26:14.895Z

N05 is an ICD-10 diagnosis entry used to group records related to Unspecified nephritic syndrome. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. 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 unspecified nephritic syndrome in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

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.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

14Diseases of the genitourinary system (N00-N99)

block

N00-N08Glomerular diseases

currentN00-N08

Official coding notes

Includes

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

Excludes1 (do not code together)

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

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

UrologistGynecologist

Sibling codes

N00Acute nephritic syndrome N01Rapidly progressive nephritic syndrome N02Recurrent and persistent hematuria N03Chronic nephritic syndrome N04Nephrotic syndrome N06Isolated proteinuria with specified morphological lesion N07Hereditary nephropathy, not elsewhere classified N08Glomerular disorders in diseases classified elsewherebillable

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

N05

Replacement codes

N05.0 — Unspecified nephritic syndrome with minor glomerular abnormalityN05.1 — Unspecified nephritic syndrome with focal and segmental glomerular lesionsN05.2 — Unspecified nephritic syndrome with diffuse membranous glomerulonephritisN05.3 — Unspecified nephritic syndrome with diffuse mesangial proliferative glomerulonephritisN05.4 — Unspecified nephritic syndrome with diffuse endocapillary proliferative glomerulonephritisN05.5 — Unspecified nephritic syndrome with diffuse mesangiocapillary glomerulonephritisN05.6 — Unspecified nephritic syndrome with dense deposit diseaseN05.7 — Unspecified nephritic syndrome with diffuse crescentic glomerulonephritisN05.8 — Unspecified nephritic syndrome with other morphologic changesN05.9 — Unspecified nephritic syndrome with unspecified morphologic changesN05.A — Unspecified nephritic syndrome with C3 glomerulonephritis

Common synonyms

Unspecified nephritic syndrome

Frequently asked questions

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.