The complexity of health data becomes even more complicated when you begin to bring in coding elements such as International Classification of Disease codes as ways the health data is recorded, bundled and tracked. These codes have been established to give different entities from providers to insurance companies, the ability to standardize health data relating to different diseases, injuries and conditions. Health information is collected by a variety of people in a variety of locations in all sorts of different ways. Think about just a simple bit of health information, such as blood pressure. The value of the concept comes in considering what, if anything, about healthcare and health research data may need to be taken into account when looking ahead to public blockchain uses for the data. Health data is often complex, messy and unorganized. The messiness is sometimes not apparent when looking at data from hundreds of thousands of individuals in aggregate.