2021 ICD-10-CM Code K56.6

Other and unspecified intestinal obstruction

Version 2021

Not Valid for Submission

K56.6 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of other and unspecified intestinal obstruction. The code is not specific and 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.

Unspecified diagnosis codes like K56.6 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

ICD-10:K56.6
Short Description:Other and unspecified intestinal obstruction
Long Description:Other and unspecified intestinal obstruction

Code Classification

Specific Coding for Other and unspecified intestinal obstruction

Non-specific codes like K56.6 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 and unspecified intestinal obstruction:

  • NON-BILLABLE CODE - K56.60 for Unspecified intestinal obstruction
  • BILLABLE CODE - Use K56.600 for Partial intestinal obstruction, unspecified as to cause
  • BILLABLE CODE - Use K56.601 for Complete intestinal obstruction, unspecified as to cause
  • BILLABLE CODE - Use K56.609 for Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction
  • NON-BILLABLE CODE - K56.69 for Other intestinal obstruction
  • BILLABLE CODE - Use K56.690 for Other partial intestinal obstruction
  • BILLABLE CODE - Use K56.691 for Other complete intestinal obstruction
  • BILLABLE CODE - Use K56.699 for Other intestinal obstruction unspecified as to partial versus complete obstruction

Information for Patients


Intestinal Obstruction

Also called: Bowel obstruction, Intestinal volvulus, Paralytic ileus

An intestinal obstruction occurs when food or stool cannot move through the intestines. The obstruction can be complete or partial. There are many causes. The most common are adhesions, hernias, cancers, and certain medicines.

Symptoms include

A complete intestinal obstruction is a medical emergency. It often requires surgery.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


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Code History

  • FY 2021 - No Change, 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)