Specific code 2008 ICD-9-CM Diagnosis Code 591
Hydronephrosis
  • ICD-9-CM 591 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 591 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2008 version of ICD-9-CM 591.
  • More recent version(s) of ICD-9-CM 591: 2009 2010 2011 2012 2013 2014.
Disease Synonyms
  • Acquired hydronephrosis
  • Hydronephrosis (swelling kidney from backup of urine)
  • Hydronephrosis due to ureteral stricture
  • Hydronephrosis w renal and ureteral calculus obstruction
  • Hydronephrosis w ureteral stricture
  • Hydronephrosis with obstruction by stones
  • Hydronephrosis with renal and ureteral calculous obstruction
  • Hydronephrosis with ureteral stricture
  • Hydronephrosis, acquired
591 Excludes
Applies To
  • Hydrocalycosis
  • Hydronephrosis
  • Hydroureteronephrosis
Convert to ICD-10-CM: 591 converts approximately to:
  • 2014 ICD-10-CM N13.30 Unspecified hydronephrosis
ICD-9-CM Volume 2 Index entries containing back-references to 591:
  • Atrophy, atrophic
    • hydronephrosis 591
    • kidney (senile) (see also Sclerosis, renal) 587
      • with hypertension (see also Hypertension, kidney) 403.90
      • congenital 753.0
      • hydronephrotic 591
      • infantile 753.0
  • Contraction, contracture, contracted
    • kidney (granular) (secondary) (see also Sclerosis, renal) 587
      • congenital 753.3
      • hydronephritic 591
      • pyelonephritic (see also Pyelitis, chronic) 590.00
      • tuberculous (see also Tuberculosis) 016.0
  • Cyst (mucus) (retention) (serous) (simple)
    • kidney (congenital) 753.10
      • acquired 593.2
      • calyceal (see also Hydronephrosis) 591
      • multiple 753.19
      • pyelogenic (see also Hydronephrosis) 591
      • simple 593.2
      • single 753.11
      • solitary (not congenital) 593.2
  • Hydrocalycosis (see also Hydronephrosis) 591
  • Hydrocalyx (see also Hydronephrosis) 591
  • Hydronephrosis 591
    • atrophic 591
    • due to S. hematobium 120.0
    • early 591
    • functionless (infected) 591
    • infected 591
    • intermittent 591
    • primary 591
    • secondary 591
    • tuberculous (see also Tuberculosis) 016.0
  • Hydroureteronephrosis (see also Hydronephrosis) 591
  • Infection, infected, infective (opportunistic) 136.9
    • hydronephrosis 591
  • Pelvioectasis 591
  • Pyelohydronephrosis 591
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 591 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2008 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.