Don’t know how I missed this one before. Here’s an interesting website www.medal.org which collects medical algorithms: ‘…
A Medical Algorithm is any computation, formula, survey, or look-up table, useful in healthcare. More than 7000 algorithms, organized into 45 chapters, are available as spreadsheets which can be opened in your browser (IE4.1+, Netscape 7.1+ )…In addition to the online spreadsheets 40 algorithms are now available online as web-based forms. Registered users have access to 249 such algorithms. Registration is free.

Developed by the Institute for Algorithmic Medicine , a non-profit Texas Corporation…’