Diagnosis Code: N11.1

Short Description: Chronic obstructive pyelonephritis

Long Description: Chronic obstructive pyelonephritis

The code N11.1 is VALID for claim submission

Code Classification:

• Diseases of the genitourinary system (N00–N99)
  • Renal tubulo-interstitial diseases (N10-N16)
    • Chronic tubulo-interstitial nephritis (N11)
      • N11.1 Chronic obstructive pyelonephritis

Code Version: 2022 ICD-10-CM

Synonyms

• Chronic obstructive pyelonephritis
• Chronic pyelonephritis
• Obstructive pyelonephritis

Diagnostic Related Group(s)

The code N11.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)

• Urinary Stones With Mcc (693)
• Urinary Stones Without Mcc (694)

References to Index of Diseases and Injuries

The code N11.1 has the following ICD-10-CM references to the Index of Diseases and Injuries

• Inclusion Terms:
  • Pyelonephritis (chronic) associated with anomaly of pelviureteric junction
  • Pyelonephritis (chronic) associated with anomaly of pyeloureteric junction
  • Pyelonephritis (chronic) associated with crossing of vessel
  • Pyelonephritis (chronic) associated with kinking of ureter
  • Pyelonephritis (chronic) associated with obstruction of ureter
  • Pyelonephritis (chronic) associated with stricture of pelviureteric junction
  • Pyelonephritis (chronic) associated with stricture of ureter
• Type 1 Excludes Notes:
  • calculous pyelonephritis (@N20.9*)
  • obstructive uropathy (@N13*.-)

Crosswalk Information

Similar Codes

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

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