N11.9 CHRONIC TUBULO-INTERSTITIAL NEPHRITIS, UNSPECIFIED

Code Information

  • Diagnosis Code: N11.9
  • Short Description: Chronic tubulo-interstitial nephritis, unspecified
  • Long Description: Chronic tubulo-interstitial nephritis, unspecified
  • Code Version: 2025 ICD-10-CM

The code N11.9 is VALID for claim submission

Code Classification

Synonyms

  • Acute on chronic tubulointerstitial nephritis
  • Chronic pyelitis
  • Chronic pyelonephritis
  • Chronic pyelonephritis
  • Chronic pyelonephritis with medullary necrosis
  • Chronic tubulointerstitial nephritis
  • Chronic tubulo-interstitial nephritis due to connective tissue disorder
  • Chronic tubulointerstitial nephritis due to ischemia
  • Chronic tubulointerstitial nephritis due to metabolic disease
  • Chronic tubulointerstitial nephritis due to neoplastic disease
  • Chronic tubulointerstitial nephritis following renal transplantation
  • Chronic urinary tract infection
  • Chronic urinary tract infection
  • Idiopathic chronic tubulointerstitial nephritis
  • Ischemic nephropathy
  • Pyelitis

Diagnostic Related Group(s)

The code N11.9 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 N11.9 has the following ICD-10-CM references to the Index of Diseases and Injuries

  • Inclusion Terms:
    • Chronic interstitial nephritis NOS
    • Chronic pyelitis NOS
    • Chronic pyelonephritis NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
N11.9 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.

Similar Codes

ICD-10 Code ICD-10 Description
N11 Chronic tubulo-interstitial nephritis
N11.0 Nonobstructive reflux-associated chronic pyelonephritis
N11.1 Chronic obstructive pyelonephritis
N11.8 Other chronic tubulo-interstitial nephritis
This page was last updated on: 10/1/2024
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