Non-specific code 2015 ICD-9-CM Diagnosis Code 535.6
  • 2015
  • Non-Billable Code

  • There are 2 ICD-9-CM codes below 535.6 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
Clinical Information
  • Acute or chronic inflammation of the duodenum. Causes include bacterial and viral infections and gastroesophageal reflux disease. Symptoms include vomiting and abdominal pain
  • Inflammation of the duodenum (the first part of the small intestine that connects to the stomach)
  • Inflammation of the duodenum section of the small intestine (intestine, small). Erosive duodenitis may cause bleeding in the upper gi tract and peptic ulcer
ICD-9-CM Volume 2 Index entries containing back-references to 535.6:
  • Infection, infected, infective (opportunistic) 136.9
    • duodenum 535.6
  • Inflammation, inflamed, inflammatory (with exudation)
    • duodenum 535.6
  • Periduodenitis 535.6
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 535.6 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 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.