I have notice an increasing use of nicknames and shortened names in medical records at our facility. I advised practitioners to use full legal names in medical records as the records are subject to subpoena, names need to match insurance information, etc. I got a lot of pushback. People wanted to use "Will" instead of "William" but others were not even close. Using legal names was just a given at all the other facilities where I have worked. I was looking online for information to show support for this, but was not able to find anything definitive. Am I totally off base here? Do other facilities use nicknames in medical records? I feel like it just looks bad/unprofessional if nothing else. I would welcome opinions, example, policies, etc. Thanks!