Most insurance policies require you to inform your insurance company soon after a crash. This can be a tricky conversation. Adjusters are looking for any excuse to pay you less than what you deserve. Don’t give them one. Stick to the facts – time, date, place, names of those involved, etc. When asked about injuries, say only that you are being medically treated.
Do not communicate with the other driver’s insurance company. If you are contacted by the insurance company, direct them to your lawyer and hang up/close the door.