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Home/Diagnosis/ICD-10 Coding for Adenocarcinoma of Colon

ICD-10 Coding for Adenocarcinoma of Colon

C18.9
C18.2

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

Also Known as:
Colon Cancer
Colorectal Adenocarcinoma
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Key Information: ICD-10 Coding for Adenocarcinoma of Colon

Essential facts and insights about ICD-10 Coding for Adenocarcinoma of Colon

Use ICD-10 code C18.9 for malignant neoplasm of colon, unspecified, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Malignant neoplasm of colon, unspecified

Billable Code
C18.9
Billable

Diagnostic Criteria

  • • Documentation must state 'colon cancer' without specifying site.

Applicable To

  • • Colon cancer NOS

Important Notes

  • • Ensure documentation specifies if the cancer is active or historical.

Malignant neoplasm of ascending colon

Billable Code
C18.2
Billable

Applicable To

  • • Cancer of the ascending colon

Important Notes

  • • Ensure the specific site is documented to avoid using unspecified codes.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z85.01

Personal history of malignant neoplasm of colon

Use for patients with a history of colon cancer who are not currently undergoing treatment.

C78.7

Secondary malignant neoplasm of liver

Use when liver metastases are present.

Frequently Asked Questions

What is the ICD-10 code for adenocarcinoma of the colon?

The ICD-10 code for adenocarcinoma of the colon is C18.9 for unspecified site, with more specific codes available for different colon segments.

How do I code a history of colon cancer?

Use Z85.01 for a personal history of malignant neoplasm of the colon when the cancer is no longer active.

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