Means Service Health take responsibility answer on aspect confidentiality record medical, aspect security , aspects salvation . One of them aspect is release information medical . In RSUD Cilacap there is wrong one problem that is less complete letter demand and permission written from patient related release information medical .Method The research is descriptive with use case studies for knowing picture release information medical in Cilacap Hospital . Samples taken use formula slovin for calculate the amount of sample to be examined. Presentation of data in form tables , textual and graph .Results research in Cilacap Hospital there is two Standard Procedure Operations related with release information medical , 99% release information medical in the form of a medical resume for interests claim insurance or bill company , while 1% release information medical in the form of Visum Et repertum for case enforcement the law . The clerk or parts involved composed from Director, Doctor, Nurse, the Implementing Rules of effort and record medical as facilitator . Incompleteness Request letter amounting to 37.64% and incompleteness permission written patient amounting to 41.94% yet held in a manner maximum .