Many countries don't consider gold to be a monetary instrument, and you would not have to declare it as currency. The US is one of these countries.
The people building health information sharing networks have taken this into consideration and have designed "translators" for all the health record formats.
I'm peripherally attached to the team working on the first state-wide health information network (in Maryland), so I can tell you a lot of these problems have already been solved long ago
Finally, a response to the goofy question guys get all of the time from women. The only problem with it is we actually have to think and remember when we are asked.
her: "Honey, what are you thinking about?"
him: "I was thinking about your rear end."
him: "Yea, I was thinking about replacing that crap from the factory with a Dana 60."
Caution: "What?" could easily get into "Do/So you think I'm fat?/!" territory.
The most important early product on the way to developing a good product is an imperfect version.