ICD-10 Code A04.7 – Enterocolitis due to Clostridium difficile (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A04.7 – Enterocolitis due to Clostridium difficile
What it is
A04.7 identifies enterocolitis caused by Clostridium difficile, an intestinal infection associated with inflammation of the colon and sometimes the small bowel. Use it when documentation clearly links the enterocolitis to C. difficile.
Clinical signs
Typical findings include diarrhea, abdominal pain, and colitis symptoms after C. difficile infection. Clinical features vary; refer to documentation for the recorded diagnosis and severity.
When to use this code
Use A04.7 when the provider documents C. difficile enterocolitis, C. difficile colitis, or similar wording. It is appropriate when the record supports an active intestinal infection due to this organism. If the note is unclear, check documentation before coding.
Do not use for
Do not use this code for nonspecific diarrhea, other infectious gastroenteritis, or colonization without documented enterocolitis. If the chart does not confirm C. difficile as the cause, check documentation.
Coding tip
Look for explicit provider linkage between Clostridium difficile and the intestinal infection before assigning A04.7.