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Home/Diagnosis/ICD-10 Coding for Peritoneal Cancer

ICD-10 Coding for Peritoneal Cancer

C48.2
C78.6

Complete ICD-10-CM coding and documentation guide for icd-10 coding for peritoneal cancer includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Peritoneal Carcinomatosis
Carcinoma of Peritoneum
Primary Peritoneal Cancer
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Key Information: ICD-10 Coding for Peritoneal Cancer

Essential facts and insights about ICD-10 Coding for Peritoneal Cancer

Use ICD-10 code C48.2 for malignant neoplasm of peritoneum, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Malignant neoplasm of peritoneum

Billable Code
C48.2
Billable

Diagnostic Criteria

clinical:
  • • Histologic confirmation of peritoneal origin
documentation:
  • • Imaging showing primary peritoneal involvement

Applicable To

  • • Primary peritoneal cancer

Important Notes

  • • Ensure primary origin is documented to avoid misclassification.

Secondary malignant neoplasm of retroperitoneum and peritoneum

Billable Code
C78.6
Billable

Diagnostic Criteria

clinical:
  • • Biopsy confirming metastatic disease
documentation:
  • • Imaging showing secondary peritoneal involvement

Applicable To

  • • Metastatic peritoneal cancer

Important Notes

  • • Ensure the primary site is documented and coded first.
Ancillary Codes

Additional codes that may be used with this diagnosis

R18.0

Malignant ascites

Use when ascites is present with peritoneal cancer.

Frequently Asked Questions

What is the ICD-10 code for primary peritoneal cancer?

The ICD-10 code for primary peritoneal cancer is C48.2, which indicates a malignant neoplasm originating in the peritoneum.

How do you code secondary peritoneal cancer?

Secondary peritoneal cancer is coded as C78.6, indicating metastasis to the peritoneum from another primary site.

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