ICD Code C18-

ICD code C18- is malignant neoplasm (cancer) of the colon.

1. Presence of a malignant neoplasm identified within the colon

2. Histopathological confirmation of adenocarcinoma or other malignant tumor type in colonic tissue

3. Clinical symptoms such as rectal bleeding, unexplained iron-deficiency anemia, or persistent changes in bowel habits (e.g., diarrhea, constipation)

4. Radiological or endoscopic evidence of a mass, lesion, or abnormal growth within the colon

5. Exclusion of malignancy originating from the rectum, appendix, or small intestine

6. Absence of metastatic disease as the primary diagnosis (use secondary codes for metastases if present)

7. Documentation of tumor location within specific segments of the colon (e.g., ascending, transverse, descending, sigmoid, or unspecified)

Relevant CPT codes that may be used to treat ICD code C18- include:

44140, 44141, 44143, 44144, 44145, 44146, 44147, 44150, 44155, 44156, 44157, 44158, 44160, 44204, 44205, 44206, 44207, 44208, 44210, 88305, 88309

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