Kathy,
I also took on-line classes (medical billing, anatomy, coding, etc.), and I honestly didn't learn anything. The teacher/classmates didn't respond to questions, and if they did, we were then two chapters down the road. Everyone was basically on their own. The classes were so fast paced, there wasn't time to absorb any of the material. All the test were open-book, so you had plenty of time to search the books for the answers. Once I completed the courses, I had to basically start over and re-study what I should have learned. After many more months of studying, I passed my CPC exam (barely) a few months ago. My best advice is to take a coding class in person, or an on-line course that promises to interact with the students. My community college really let me down! I took the Blitz review course offered here, and it honestly saved me! I wouldn't have passed the exam without it! Aslo, take advantage of various bloggs for info. and advice.