C45.1 is the ICD-10 code for Mesothelioma of peritoneum. It is a four-character subcategory of C45 (Mesothelioma), the most specific level in the WHO edition. It belongs to the block C45–C49 (Malignant neoplasms of mesothelial and soft tissue) in Chapter II, Neoplasms.
- Code type
- Subcategory (4 characters)
- Chapter
- II · C00–D48
- Classification
- WHO ICD-10, 2019 version
What C45.1 includes
Conditions and terms that are coded here.
- Mesentery
- Mesocolon
- Omentum
- Peritoneum (parietal)(pelvic)
What C45.1 excludes
Conditions that look similar but belong under another code.
- other malignant neoplasms of peritoneum C48.-
C45.1 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
C45.1Mesoteliom i bukhinne
DC451Malignt mesoteliom i bughinden
C45.1Mesotheliom des Peritoneums
C45.1Mésothéliome du péritoine
C45.1mesothelioom van peritoneum
C45.1Mesothelioma of peritoneum
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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