Collaborative Stage

Collaborative Stage for TNM 7 - Revised 10/27/2009 [ Schema ]

CS Site-Specific Factor 9
KRAS

Note: KRAS is a gene which belongs to a class of genes known as oncogenes. When mutated, oncogenes have the potential to cause normal cells to become cancerous. Studies suggest that KRAS gene mutations are often present in colorectal cancer.

Code	Description
010	Abnormal (mutated) Positive for mutations
020	Normal (wild type) Negative for mutations
988	Not applicable: Information not collected for this case
997	Test ordered, results not in chart
998	Test not done (test was not ordered and was not performed)
999	Unknown Not documented in patient record