Hazard DC question

The hidden pit and drowning pit hazards say you can Catch an Edge to avoid falling in, but fail to give a DC. So do I use the DC from table 10-5 on page 503? Is this the same DC to climb out?

Also, no spiked pit?

The hidden pit and drowning pit hazards say you can Catch an Edge to avoid falling in, but fail to give a DC. So do I use the DC from table 10-5 on page 503? Is this the same DC to climb out?

Also, no spiked pit?

I would use the DC for the pit's level as the DC to Catch an Edge or climb out. The entry for Bottomless Pit, a level 9 trap, sets the DC to Catch an Edge or climb the walls at 26.

And no, I don't see any Spiked Pit either.