There is a popular misconception that QNE refers to a pressure setting (1013.2HPa) in the same way as QFE and QNH - this is, of course, incorrect. QNE refers to the reading on an altimeter on landing when the standard pressure setting is set and is therefore measured in feet and not hectopascals. QNE has, to the best of my knowledge, never appeared in ICAO Doc 8400 and neither has the equally useful QEO (I have cleared the runway)