So, I entered in the 2000 or so diagnoses into the Decision Support system.
Took me a while, but I'm stubborn like that. Anyhow, it works very well to alert you to the fact that the patient has an HCC diagnosis in their problem list, and I set it to remind once per year.

HCC diagnoses for Medicare Advantage patients need to be addressed (diagnosis, status and plan) once per calendar year. So, starting the first of the year we set out to document each of the existing risk-adjusting diagnoses.