AHIMA coding program...

Early 50’s considering a career transition to medical coding. Varied background non-medical... but systems analyst mindset pretty much describes me. Comparing AHIMA online program against Loma Linda University... leaning towards LLU for internship opportunities leading to eventual paid position... someplace... although program price is double. Are there any aptitude tests online which will help me determine if med coding is a good fit for me? Don’t think investment in HIM degree is for me. Thanks for your help!