Non-specific code 2014 ICD-9-CM Diagnosis Code 590.8
Other pyelonephritis or pyonephrosis not specified as acute or chronic
  • Non-Billable Code
  • There are 2 ICD-9-CM codes below 590.8 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
Clinical Information
  • A disorder characterized by an infectious process involving the kidney.
  • An acute or chronic inflammatory process affecting the kidney. It is caused by bacteria and in most cases it is the result of a urinary tract infection. Signs and symptoms include fever, chills, flank pain, painful and frequent urination, cloudy or bloody urine, and confusion.
  • Inflammation of the kidney and its pelvis due to infection.
  • Inflammation of the kidney involving the renal parenchyma (the nephrons); kidney pelvis; and kidney calices. It is characterized by abdominal pain; fever; nausea; vomiting; and occasionally diarrhea.
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 590.8 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 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.