It's very important for me to follow along with the coding of the examples in the Handbook, in the ICD-10 so I can see how the rationale works. That's the biggest chunk of my active learning. Also analyzing all errors (kind of like the file we make for the final exam-) my error and how I got it, the correct answer and how I got it and where I made my coding error initially. I kinda do the same for the Turley exercises.
The hardest part for me to get around was making myself look in both the Alpha and the Tabular for the codes. My brain wanted to think that once I found it in the Alpha, I was all done. Fortunately that mindset is going away. And be sure to read everything under the subterms and subcatagories. There is a ton of info there!