by juster2
Here is a another variant, called "Dungeons and Dragons 3.5"DEATH, DYING, AND HEALING
0 Hit Points: If your hit points drop to 0, you are disabled. You
can only take one move action or standard action per turn, and you
take 1 point of damage after completing an action.
–1 to –9 Hit Points: If your hit points drop to from –1 to –9 hit
points, you’re unconscious and dying, and you lose 1 hit point per round. Each round, before losing that hit point, you have a 10% chance of becoming stable. While stable, you’re still unconscious.
I suppose Healing Surges are the CR simplification of this process.