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ICD-10-CM Coding:

Code Acute Appendicitis Without Peritonitis Like This

Published on Fri Jan 23, 2026

Question: A surgeon documents “acute appendicitis” and explicitly states that the patient does not have peritonitis. The patient’s CT scan shows an enlarged, inflamed appendix with no evidence of perforation, abscess, or rupture. Which ICD-10-CM code is most appropriate? Answer: To properly code acute appendicitis, pay attention to both what the provider rules out and what they confirm. You may [...]
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