A n environmental stressor could be;
the weather, too hot, say a heatwave, which can cause heat stroke, dehydration etc, or too cold, where vulnerable people may freeze to death, or develop frost bite etc.
So, some characteristic part of where we live which may, under certain conditions cause difficulty for us or some other living being.
Answer:
1. categorize patients and their ailments
2.acting as a communication link between a billing office and a care provider's office
3. translates diagnostic and procedural phrases into alpha-numeric codes
Explanation: