Hi Sujith. You can find more information about the built-in incidents here: Built-in incidents
Keep in mind that not all the built-in incident rules are necessarily based on measures. For those that are, you can check the conditions in the Incidents section of the System Profile as you would for custom incident rules.
If you want to bulk document the conditions of all incident rules of a specific system profile, perhaps it can be interesting to extract this information directly from the system profile configuration XML file.