2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Genitourinary System 580-629 > Other Diseases Of Urinary System 590-599 >  2008 ICD-9-CM Diagnosis 591
Hydronephrosis On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date.
The 2009 version of ICD-9-CM 591 can be accessed here. - A distention of the pelvis and calices of the kidney with urine, as a result of obstruction of the ureter, with accompanying atrophy of the parenchyma of the organ. (Dorland, 27th ed)
- Abnormal enlargement of a kidney, which may be caused by blockage of the ureter (such as by a kidney stone) or chronic kidney disease that prevents urine from draining into the bladder.
- 591 is a specific code that can be used to specify a diagnosis
- 591 contains 19 index entries
591 also known as:- Hydrocalycosis
- Hydronephrosis
- Hydroureteronephrosis
591 excludes:
Index entries containing 591:- Atrophy, atrophic
- hydronephrosis
 591
- kidney (senile) (see also Sclerosis, renal) 587
- hydronephrotic 591
Contraction, contracture, contracted- kidney (granular) (secondary) (see also Sclerosis, renal) 587
- hydronephritic 591
Cyst (mucus) (retention) (serous) (simple)- kidney (congenital) 753.10
- calyceal (see also Hydronephrosis) 591
- pyelogenic (see also Hydronephrosis) 591
Hydrocalycosis (see also Hydronephrosis) 591Hydrocalyx (see also Hydronephrosis) 591
Hydronephrosis 591- atrophic 591
- congenital 753.29
- 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
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