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Home/Diagnosis/ICD-10 Coding for Metastatic Carcinoma

ICD-10 Coding for Metastatic Carcinoma

C79.51
C78.7
C80.1

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

Also Known as:
Secondary Cancer
Metastatic Cancer
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Key Information: ICD-10 Coding for Metastatic Carcinoma

Essential facts and insights about ICD-10 Coding for Metastatic Carcinoma

Use ICD-10 code C79.51 for secondary malignant neoplasm of bone, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Secondary malignant neoplasm of bone

Billable Code
C79.51
Billable

Diagnostic Criteria

  • • Confirmed bone metastasis through imaging and biopsy.

Applicable To

  • • Bone metastasis

Important Notes

  • • Ensure correct sequencing with primary cancer codes.

Secondary malignant neoplasm of liver and intrahepatic bile duct

Billable Code
C78.7
Billable

Diagnostic Criteria

  • • Use when liver metastasis is confirmed and is the focus of treatment.

Applicable To

  • • Liver metastasis

Important Notes

  • • Ensure correct sequencing with primary cancer codes.

Malignant (primary) neoplasm, unspecified

Billable Code
C80.1
Billable

Diagnostic Criteria

  • • Use when the primary site of cancer is not documented.

Applicable To

  • • Cancer of unknown primary

Important Notes

  • • Use only when primary site is truly unknown.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z51.0

Encounter for radiation therapy

Use when radiation therapy is part of the treatment plan.

Z51.11

Encounter for chemotherapy

Use when chemotherapy is part of the treatment plan.

Frequently Asked Questions

How do you code metastatic carcinoma with unknown primary?

Code the metastatic site first, followed by C80.1 for unknown primary. Ensure all metastatic sites are documented for accurate coding.

What is the ICD-10 code for bone metastasis?

The ICD-10 code for bone metastasis is C79.51. It should be used when bone metastasis is confirmed and is the focus of treatment.

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