K66.9

Approximate Synonyms

• Disease of peritoneum

• Disorder of peritoneum

Clinical Information

• A non-neoplastic or neoplastic disorder that affects the peritoneal cavity. Representative examples of non-neoplastic disorders include peritonitis and panniculitis. Representative examples of neoplastic disorders include adenomatoid tumor, primary peritoneal carcinoma, metastatic carcinoma to the peritoneum, and malignant mesothelioma.

• Pathological processes involving the peritoneum.

• Your peritoneum is the tissue that lines your abdominal wall and covers most of the organs in your abdomen. A liquid, peritoneal fluid, lubricates the surface of this tissue.disorders of the peritoneum are not common. They include

Details

• K66.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM K66.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of K66.9 – other international versions of ICD-10 K66.9 may differ.