ICD Code C20-

ICD code C20 is malignant neoplasm of the rectum, meaning cancer that originates in the rectal tissue.

1. Presence of a malignant neoplasm located in the rectal region

2. Clinical evidence of a tumor or mass detected during physical examination, imaging, or endoscopic evaluation of the rectum

3. Histopathological confirmation of malignancy from a rectal tissue biopsy

4. Symptoms such as rectal bleeding, change in bowel habits (e.g., diarrhea, constipation), tenesmus, or unexplained weight loss

5. Exclusion of primary malignancy in other sites of the gastrointestinal tract

6. No evidence that the neoplasm is a secondary (metastatic) lesion from another primary cancer

Relevant CPT codes that may be used to treat ICD code C20 include:

- 45378 (Colonoscopy, diagnostic)

- 45380 (Colonoscopy with biopsy)

- 45385 (Colonoscopy with polypectomy)

- 44140 (Colectomy, partial; with anastomosis)

- 44145 (Colectomy, partial; with coloproctostomy)

- 44160 (Colectomy, total, abdominal, with proctectomy)

- 44204 (Laparoscopy, colectomy, partial; with anastomosis)

- 77385 (Intensity modulated radiation treatment delivery)

- 77427 (Radiation treatment management)

- 96413 (Chemotherapy administration, intravenous infusion)

- 96415 (Chemotherapy, each additional hour)

- 99213 (Outpatient visit, established patient)

- 99214 (Outpatient visit, established patient, moderate complexity)

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