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

The code N12 is VALID for claim submission

Code Classification:

• Diseases of the genitourinary system (N00–N99)
  • Renal tubulo-interstitial diseases (N10-N16)
    • Tubulo-interstitial nephritis, not spcf as acute or chronic (N12)
      • N12 Tubulo-interstitial nephritis, not spcf as acute or chronic

Code Version: 2022 ICD-10-CM

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
• Renal tubulo-interstitial disorders in blood diseases and disorders involving the immune mechanism
• 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 v39.0)

• Kidney And Urinary Tract Infections With Mcc (689)
• 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

Similar Codes

This page was last updated on: 10/1/2023

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