ICD-10-CM Code A04.7

Enterocolitis due to Clostridium difficile

Version 2020 Replaced Code Non-Billable Code

Not Valid for Submission

A04.7 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of enterocolitis due to clostridium difficile. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:A04.7
Short Description:Enterocolitis due to Clostridium difficile
Long Description:Enterocolitis due to Clostridium difficile

Consider the following ICD-10 codes with a higher level of specificity:

  • A04.71 - ... recurrent
  • A04.72 - ... not specified as recurrent

Replaced Code

This code was replaced in the 2020 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, 2019. This code was replaced for the FY 2020 (October 1, 2019 - September 30, 2020).

  • A04.71 - Enterocolitis due to Clostridium difficile, recurrent
  • A04.72 - Enterocolitis d/t Clostridium difficile, not spcf as recur

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code A04.7:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Foodborne intoxication by Clostridium difficile
  • Pseudomembraneous colitis

Code Classification

  • Certain infectious and parasitic diseases (A00–B99)
    • Intestinal infectious diseases (A00-A09)
      • Other bacterial intestinal infections (A04)

Code History

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

Information for Patients


Clostridium Difficile Infections

What is Clostridium difficile (C. difficile)?

Clostridium difficile (C. difficile) is a bacterium that can cause diarrhea and more serious intestinal conditions such as colitis. C. diff causes close to half a million illnesses each year.

What causes Clostridium difficile (C. difficile)?

C. diff bacteria are commonly found in the environment, but people usually only get C. diff infections when they are taking antibiotics. That's because antibiotics not only wipe out bad germs, they also kill the good germs that protect your body against infections. The effect of antibiotics can last as long as several months. If you come in contact with C. diff germs during this time, you can get sick. You are more likely to get C. diff if you take antibiotics for more than a week.

C. diff spreads when people touch food, surfaces, or objects that are contaminated with feces (poop) from a person who has C. diff.

Who is at risk for Clostridium difficile (C. difficile)?

You are at more likely to get C. diff if you

  • Are taking antibiotics
  • Are 65 or older
  • Recently stayed in a hospital or nursing home
  • Have a weakened immune system
  • Have had a previous infection with C. diff or were exposed to it

What are the symptoms of Clostridium difficile (C. difficile)?

The symptoms of C. diff include

  • Diarrhea (loose, watery stools) or frequent bowel movements for several days
  • Fever
  • Stomach tenderness or pain
  • Loss of appetite
  • Nausea

Severe diarrhea causes you to lose a lot of fluids. This can put you at risk for dehydration.

How is Clostridium difficile (C. difficile) diagnosed?

If you have been taking antibiotics recently and have symptoms of C. diff, you should see your health care provider. Your provider will ask about your symptoms and do a lab test of your stool. In some cases, you might also need an imaging test to check for complications.

What are the treatments for Clostridium difficile (C. difficile)?

Certain antibiotics can treat C. diff. If you were already taking a different antibiotic when you got C. diff, you provider may ask you to stop taking that one.

If you have a severe case, you may need to stay in the hospital. If you have very severe pain or serious complications, you may need surgery to remove the diseased part of your colon.

About 1 in 5 people who have had get C. diff will get it again. It could be that your original infection came back or that you have new infection. Contact your health care provider if your symptoms come back.

Can Clostridium difficile (C. difficile) be prevented?

There are steps you can take to try to prevent getting or spreading C. diff:

  • Wash your hands with soap and water after you use the bathroom and before you eat
  • If you have diarrhea, clean the bathroom that you used before anyone else uses it. Use bleach mixed with water or another disinfectant to clean the toilet seat, handle, and lid.

Health care providers can also help prevent C. diff by taking infection control precautions and improving how they prescribe antibiotics.

Centers for Disease Control and Prevention


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Gastroenteritis

Have you ever had the "stomach flu?" What you probably had was gastroenteritis - not a type of flu at all. Gastroenteritis is an inflammation of the lining of the intestines caused by a virus, bacteria, or parasites. Viral gastroenteritis is the second most common illness in the U.S. The cause is often a norovirus infection. It spreads through contaminated food or water or by contact with an infected person. The best prevention is frequent hand washing.

Symptoms of gastroenteritis include diarrhea, abdominal pain, vomiting, headache, fever, and chills. Most people recover with no treatment.

The most common problem with gastroenteritis is dehydration. This happens if you do not drink enough fluids to replace what you lose through vomiting and diarrhea. Dehydration is most common in babies, young children, older adults, and people with weak immune systems.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


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