The travel insurance policy of your origin country is very much essential in the event of baggage loss, accidental injury, sickness, or death. The trekking company or your guide is not responsible for any damage while trekking or climbing caused due to natural calamities.
Rescue insurance (for quick evacuation) and health insurance are particularly important while making trips in the Himalayas. So, be sure about your specific policy and give a copy of your insurance details to the company before leaving for trekking in case of an emergency helicopter or regional medical evacuation. Otherwise, you should contact your embassy to guarantee the payment or reimbursement. Thus it is very much necessary to carry the contact details of your embassy in the local country.