I am a licensed RN who has been working as an office manager for 24 years and billing manager for 10 years in a chiropractic office. I am now looking for a position in Coding and I'm getting no response to my resumes and usually can't get anyone in HR on the phone. What is the problem? My age (56)? The fact that my experience is in chiropractic? Should I attempt to get the CCS certification also?