C17: Malignant neoplasm of small intestine
C17.8: Malignant neoplasm: Overlapping lesion of small intestine
The tissue in the body is made up of cells. With cancer, the cells multiply uncontrollably, which leads to a malignant neoplasm (abnormal growth of tissue) developing. The cancer cells can destroy the healthy tissue and spread throughout the body.
The small intestine is the longest section of the digestive tract. It consists of 3 sections. The 1st section begins immediately after the stomach and is called the duodenum. The gallbladder and the pancreas secrete the digestive juices in this section. The jejunum and ileum sections come next. The nutrients are absorbed into the blood from the food in the small intestine. The small intestine is followed by the large intestine.
You have small intestine cancer in several sections of the small intestine.
Please note: This ICD code may also derive from the ICD-O system. If this is the case, there are usually additional letters and numbers in addition to the code. It starts with the letter M, followed by 4 digits and then a slash. There is another digit after the slash.
If it is an ICD-O code, then this does not describe a malignant cancer in all cases. The last digit after the slash gives you more detailed information about this:
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If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
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