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Home/Diagnosis/ICD-10 Coding for Metastatic Rectal Cancer

ICD-10 Coding for Metastatic Rectal Cancer

C20
C78.7

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

Also Known as:
Rectal Cancer with Metastasis
Stage IV Rectal Cancer
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Key Information: ICD-10 Coding for Metastatic Rectal Cancer

Essential facts and insights about ICD-10 Coding for Metastatic Rectal Cancer

Use ICD-10 code C20 for malignant neoplasm of rectum, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Malignant neoplasm of rectum

Billable Code
C20
Billable

Diagnostic Criteria

  • • Biopsy confirms rectal adenocarcinoma

Applicable To

  • • Primary rectal adenocarcinoma

Important Notes

  • • Ensure primary site is documented as rectum.

Secondary malignant neoplasm of liver and intrahepatic bile duct

Billable Code
C78.7
Billable

Diagnostic Criteria

  • • Imaging showing liver lesions
  • • Biopsy confirming metastatic adenocarcinoma

Applicable To

  • • Liver metastasis from rectal cancer

Important Notes

  • • Ensure liver metastasis is documented as secondary.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z51.11

Encounter for antineoplastic chemotherapy

Use when patient is receiving chemotherapy.

Z51.12

Encounter for antineoplastic immunotherapy

Use when patient is receiving immunotherapy.

Frequently Asked Questions

How is metastatic rectal cancer coded in ICD-10?

Metastatic rectal cancer is coded using C20 for the primary rectal cancer and C78.7 for liver metastasis. Sequence depends on treatment focus.

What is the ICD-10 code for liver metastasis from rectal cancer?

The ICD-10 code for liver metastasis from rectal cancer is C78.7.

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