Non-Billable / Non-Specific Code
ICD-10-CM N05 is the diagnosis code for Unspecified nephritic syndrome. This code falls under the section "Glomerular diseases" within Chapter 14 — Diseases of the genitourinary system (N00-N99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as N05. They are mutually exclusive:
Understanding where N05 sits in the ICD-10-CM classification helps ensure proper coding:
No, N05 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
N05 is the ICD-10-CM diagnosis code for "Unspecified nephritic syndrome". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
N05 is located in Section N00-N08 — "Glomerular diseases" within Chapter 14 of the ICD-10-CM Tabular List.
N05 has 11 sub-code(s) that provide more specific detail: N05.0, N05.1, N05.2, N05.3, N05.4 and more.
Use N05 when the patients documented diagnosis matches "Unspecified nephritic syndrome" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Unspecified nephritic syndrome is N05.
No, N05 is non-billable. Use a more specific sub-code for primary diagnosis billing.
N05 is in Chapter 14 of the ICD-10-CM Tabular List.
Type 1 Excludes for N05 include: nephropathy NOS with no stated morphological lesion (N28.9); renal disease NOS with no stated morphological lesion (N28.9); tubulo-interstitial nephritis NOS (N12).
Yes, N05 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.