Benign neoplasm of mesothelial tissue of other sites

This code signifies a non-cancerous growth originating from the mesothelial tissue, which lines various body cavities and covers internal organs, when the specific site is not otherwise classified. These benign tumors are typically slow-growing and do not metastasize. Examples include benign mesotheliomas or adenomatoid tumors found in unusual or unspecified locations.

Apply this code when documentation clearly indicates a benign neoplasm of mesothelial tissue in an anatomical site not covered by more specific D19 subcategories (e.g., pleura, peritoneum, pericardium). This diagnosis is often established through biopsy and histopathological examination. Use when the physician's diagnosis explicitly states "benign mesothelial neoplasm of other site" or similar.

• Ensure the documentation explicitly states "benothelial" or "mesothelial tissue" and "benign" to differentiate from malignant forms.
• Always attempt to find a more specific D19 subcategory if the anatomical site (e.g., pleura, peritoneum) is identified.
• Do not use this code for benign neoplasms of connective tissue or other soft tissues; those fall under different ICD-10-CM categories.