ICD-10-CM C45.1: Mesothelioma of peritoneum

ICD-10-CM Diagnosis Code (2025)

Official Description for C45.1

Mesothelioma of peritoneum

Coding Notes & Guidelines for C45.1

Excludes1: Not Coded Here

other malignant neoplasm of soft tissue of peritoneum (C48.-)

Inclusion Terms
  • Mesothelioma of cul-de-sac
  • Mesothelioma of mesentery
  • Mesothelioma of mesocolon
  • Mesothelioma of omentum
  • Mesothelioma of peritoneum (parietal) (pelvic)

Parent Code (Less Specific):

About ICD-10-CM Code C45.1 (Mesothelioma of peritoneum)

ICD-10-CM code C45.1 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM C45.1 became effective on October 1, 2024.

This page provides detailed information about C45.1 - Mesothelioma of peritoneum. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Mesothelioma of peritoneum.