What’s in a word? Or, even one letter of an acronym? Some people use the terms “electronic medical record” and “electronic health record” (or “EMR” and “EHR”) interchangeably. But at the Office of the National Coordinator for Health Information Technology (ONC), they use electronic health record or EHR almost exclusively. While it may seem a little picky at first, the difference between the two terms is actually quite significant. The EMR term came along first, and indeed, early EMRs were “medical.” They were for use by clinicians mostly for diagnosis and treatment.