Specific code 2014 ICD-9-CM Diagnosis Code 579.9
Unspecified intestinal malabsorption
  • Billable Code
  • Short description: Intest malabsorption NOS.
  • ICD-9-CM 579.9 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 579.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Adult osteomalacia due to malabsorption
  • Intestinal malabsorption
  • Malabsorption in the elderly
  • Malabsorption syndrome
  • Malabsorption, intestinal
Clinical Information
  • A disorder characterized by inadequate absorption of nutrients in the small intestine. Symptoms include abdominal marked discomfort, bloating and diarrhea.
  • A group of symptoms such as gas, bloating, abdominal pain, and diarrhea resulting from the body's inability to properly absorb nutrients.
  • A syndrome resulting from the inadequate absorption of nutrients in the small intestine. Symptoms include abdominal pain, bloating, and diarrhea.
  • General term for a group of malnutrition syndromes caused by failure of normal intestinal absorption of nutrients.
  • Impaired absorption of nutrients in the gastrointestinal tract.
  • Malabsorption: decreased absorption of fat and other nutrients caused by liver, biliary, pancreatic or intestinal disease. The 72-hour fecal fat determination is the best single test for mal- absorption.
  • Your small intestine does most of the digesting of the foods you eat. If you have a malabsorption syndrome, your small intestine cannot absorb nutrients from foods.causes of malabsorption syndromes include
    • celiac disease
    • lactose intolerance
    • short bowel syndrome, which happens after surgery to remove a large portion of the small intestine
    • whipple disease, a rare bacterial infection
    • genetic diseases
    • certain medicines
    treatment of malabsorption syndromes depends on the cause.
Applies To
  • Malabsorption syndrome NOS
Convert to ICD-10-CM: 579.9 converts directly to:
  • 2014 ICD-10-CM K90.9 Intestinal malabsorption, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 579.9:
  • Disturbance - see also Disease
    • assimilation, food 579.9
  • Malabsorption 579.9
    • due to bacterial overgrowth 579.8
    • glucose-galactose (congenital) 271.3
    • intestinal 579.9
    • lactose (hereditary) 271.3
    • sucrose (-isomaltose) (congenital) 271.3
    • syndrome 579.9
  • Malassimilation 579.9
  • Syndrome - see also Disease
    • malabsorption 579.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 579.9 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.