N12 TUBULO-INTERSTITIAL NEPHRITIS, NOT SPCF AS ACUTE OR CHRONIC

Code Information

  • Diagnosis Code: N12
  • Short Description: Tubulo-interstitial nephritis, not spcf as acute or chronic
  • Long Description: Tubulo-interstitial nephritis, not specified as acute or chronic
  • Code Version: 2025 ICD-10-CM

The code N12 is VALID for claim submission

Code Classification

Synonyms

  • Anti-glomerular basement membrane disease
  • Anti-glomerular basement membrane tubulointerstitial nephritis
  • Diffuse pyelonephritis
  • Familial interstitial nephritis
  • Granulomatous tubulointerstitial nephritis
  • Idiopathic granulomatous interstitial nephropathy
  • Idiopathic interstitial tubulonephritis
  • Immunologic mediated TIN
  • Mycoplasmal pyelonephritis
  • Primary tubulointerstitial nephritis
  • Pyelitis
  • Pyelonephritis
  • Secondary tubulointerstitial nephritis
  • Subacute pyelonephritis
  • Tubulointerstitial nephritis
  • Tubulointerstitial nephritis with uveitis syndrome

Diagnostic Related Group(s)

The code N12 is grouped in the following Diagnostic Related Group(s) MS-DRG V42.0

  1. Kidney And Urinary Tract Infections With Mcc (689)
  2. Kidney And Urinary Tract Infections Without Mcc (690)

References to Index of Diseases and Injuries

The code N12 has the following ICD-10-CM references to the Index of Diseases and Injuries

  • Inclusion Terms:
    • Interstitial nephritis NOS
    • Pyelitis NOS
    • Pyelonephritis NOS
  • Type 1 Excludes Notes:
    • calculous pyelonephritis (@N20.9*)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
N12 Right Arrow 590.80 Pyelonephritis NOS
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

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ICD-10 Code ICD-10 Description
This page was last updated on: 10/1/2024
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