2021 ICD-10-CM Code K59.8

Other specified functional intestinal disorders

Version 2021
Replaced Code
Non-Billable Code

Not Valid for Submission

K59.8 is a "header" nonspecific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of other specified functional intestinal disorders. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:K59.8
Short Description:Other specified functional intestinal disorders
Long Description:Other specified functional intestinal disorders

Code Classification

Specific Coding for Other specified functional intestinal disorders

Header codes like K59.8 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for other specified functional intestinal disorders:

  • K59.81 - Ogilvie syndrome
  • K59.89 - Other specified functional intestinal disorders

Replaced Code

This code was replaced in the 2021 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2020. This code was replaced for the FY 2021 (October 1, 2020 - September 30, 2021).


  • K59.81 - Ogilvie syndrome
  • K59.89 - Other specified functional intestinal disorders

Convert K59.8 to ICD-9 Code

Information for Patients


Digestive Diseases

Also called: Gastrointestinal diseases

When you eat, your body breaks food down to a form it can use to build and nourish cells and provide energy. This process is called digestion.

Your digestive system is a series of hollow organs joined in a long, twisting tube. It runs from your mouth to your anus and includes your esophagus, stomach, and small and large intestines. Your liver, gallbladder and pancreas are also involved. They produce juices to help digestion.

There are many types of digestive disorders. The symptoms vary widely depending on the problem. In general, you should see your doctor if you have

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


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Code History

  • FY 2021 - Code Deleted, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)