Age 23. Coma patient. Diffused axonal injury. Intraventricular hemmorhage. Bleeding in frontal lobe. Chances of survival? Any possible impairment?

Not good . Sorry about this one, but there will be a suboptimal outcome at best. Survival may be issue, talk to your doctors, and perhaps an eeg can guide decisions, but hard to predict outcome of comas. Sounds like a profound traumatic event, and since young and severe, have a family conference with the treatment team, and get all your questions answered.