A18.3
Non-billableTuberculosis of intestines, peritoneum and mesenteric glands
A18.3 is the ICD-10-CM code for Tuberculosis of intestines, peritoneum and mesenteric glands. It is a non-billable category code — use a more specific child code such as A18.31 for billing.
A00-B99 Certain infectious and parasitic diseases
What this means — in plain language
MedlinePlus · NIHYour 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: Peritonitis - an inflammation of the peritoneum Cancer Complications from peritoneal dialysis Your doctor may use imaging tests or lab tests to analyze the peritoneal fluid to diagnose…
Read more about Peritoneal Disorders at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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