C45.1

Billable

Mesothelioma of peritoneum

C45.1 is the ICD-10-CM code for Mesothelioma of peritoneum. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
C00-D49
Parent
C45
Edition
FY2026

C00-D49 Neoplasms

Includes

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

Excludes1 — not coded here

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

Frequently asked questions

What is ICD-10 code C45.1?
C45.1 is the ICD-10-CM code for "Mesothelioma of peritoneum". It falls under C00-D49 Neoplasms.
Is C45.1 a billable code?
Yes — C45.1 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from C45.1?
Excludes1 (not coded here): other malignant neoplasm of soft tissue of peritoneum (C48.-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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