Valid for Submission
C18.4 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of transverse colon. The code C18.4 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code C18.4 might also be used to specify conditions or terms like carcinoma of colon, carcinoma of transverse colon, malignant tumor of transverse colon, primary adenocarcinoma of colon, primary adenocarcinoma of transverse colon , primary malignant neoplasm of transverse colon, etc.
The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: Neoplasm, neoplastic intestine, intestinal large colon transverse .
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Carcinoma of colon
- Carcinoma of transverse colon
- Malignant tumor of transverse colon
- Primary adenocarcinoma of colon
- Primary adenocarcinoma of transverse colon
- Primary malignant neoplasm of transverse colon
Diagnostic Related Groups - MS-DRG Mapping
Convert C18.4 to ICD-9 Code
Table of Neoplasms
The code C18.4 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.
Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.
|»Neoplasm, neoplastic |
Information for Patients
Also called: Colon cancer, Rectal cancer
The colon and rectum are part of the large intestine. Colorectal cancer occurs when tumors form in the lining of the large intestine. It is common in both men and women. The risk of developing colorectal cancer rises after age 50. You're also more likely to get it if you have colorectal polyps, a family history of colorectal cancer, ulcerative colitis or Crohn's disease, eat a diet high in fat, or smoke.
Symptoms of colorectal cancer include
- Diarrhea or constipation
- A feeling that your bowel does not empty completely
- Blood (either bright red or very dark) in your stool
- Stools that are narrower than usual
- Frequent gas pains or cramps, or feeling full or bloated
- Weight loss with no known reason
- Nausea or vomiting
Because you may not have symptoms at first, it's important to have screening tests. Everyone over 50 should get screened. Tests include colonoscopy and tests for blood in the stool. Treatments for colorectal cancer include surgery, chemotherapy, radiation, or a combination. Surgery can usually cure it when it is found early.
NIH: National Cancer Institute
- Abdominal radiation - discharge (Medical Encyclopedia)
- After chemotherapy - discharge (Medical Encyclopedia)
- Colon cancer (Medical Encyclopedia)
- Colon cancer screening (Medical Encyclopedia)
- Large bowel resection (Medical Encyclopedia)
- Lower GI Series - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)
[Learn More in MedlinePlus]