Entitlement to PIP is based on the effect a long term health condition has on your daily life and not the condition itself.
PIP is made up of 2 components:
A Daily Living component
A Mobility component
Each component has two rates, standard and enhanced. If you qualify for PIP, you will get money for one or both components. PIP is not affected by income or savings, it is not taxable and you can get it whether you are in work or not.