Reporting body weight and height with a creatinine clearance.
MSH|...
PID|...
ORC|NW|... // New order.
OBR||P42^PC||2164-2^CREATININE RENAL CLEARANCE:VRAT:24H:UR:QN^LN|...
OBX||ST|3141-9^BODY WEIGHT:MASS:^LN||62|kg<CR>
OBX||ST|3137-7^BODY HEIGHT:LEN:^LN||190|cm<CR>
ORC|NW|... // Next order.