ICD-10 Code D19.7 – Benign neoplasm of mesothelial tissue of other sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D19.7 – Benign neoplasm of mesothelial tissue of other sites
What it is
D19.7 identifies a noncancerous tumor made of mesothelial tissue in sites other than the pleura, peritoneum, or pericardium. Use it when the record clearly documents a benign mesothelial neoplasm at another specified site.
Clinical signs
Clinical features vary; refer to documentation. These lesions may be found incidentally or during evaluation of a localized mass, swelling, or imaging abnormality, but the diagnosis depends on pathology or a clear clinician statement.
When to use this code
Use D19.7 when the provider documents a benign mesothelial tumor in an anatomic location not covered by the more specific mesothelial neoplasm codes. It is appropriate when the site is identified and the lesion is described as benign. If the record is vague about site or behavior, check documentation before coding.
Do not use for
Do not use this code for malignant mesothelioma or for benign mesothelial tumors of the pleura, peritoneum, or pericardium. Do not assign it when the chart only says “mass” or “lesion” without confirming benign mesothelial origin.
Coding tip
Confirm both benign behavior and the exact site; if either is unclear, query the provider or check documentation.