Depending on the type of data, Question/Answer may be appropriate. The type is meant to capture the likes of data you’d find on a questionnaire, for example, when checking-in for a doctor’s visit. If that's not appropriate, then, the application specific
thing type can store free form data for an application.
HealthVault is always looking to evolve our data model so if there are health data types not represented in our data model, we’re happy to have a look. If you choose to do share the 50 items that you mentioned, you may send that to v-sanpil at Microsoft
dot com and I will share that with the appropriate folks here.