2026
ICD-10-CM
Diagnosis
Code

C48 Malignant neoplasm of retroperitoneum and peritoneum

  • Non-billable
  • 2016–2026

C48 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Malignant neoplasm of retroperitoneum and peritoneum.

Type 1 excludes

  • Kaposi's sarcoma of connective tissue (C46.1)

  • Mesothelioma (C45.-)

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