C16.9: Malignant neoplasm: Stomach, unspecified

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 stomach is located in the upper abdomen. The stomach has a curved shape, creating a big curve and a small notch. The stomach is made up of different sections. Food reaches the entrance to the stomach through the gullet (oesophagus). The food is then transported into the body of the stomach. The fundus of the stomach is located at the top of the stomach. Air often collects there. There is a small extension further down in the stomach. This is the section in front of the end of the stomach or pyloric orifice. There is a sphincter muscle, the pylorus, at the end of the stomach. The pylorus transports the food in portions into the small intestine.

You have stomach cancer.

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.

For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.