属性
数据类型AN
必须?Optional
长度Min 12 / Max 12
Element
X12 EDI Release 00305
W04
438U.P.C. Case Code
Code (Universal Product Code - U.P.C.) including two high order digits identifying the ``system'' (U.S. Grocery = 00, 06 or 07; U.S. Drug = 03); using the U.S. Grocery system, the next ten digits are: Manufacturer (5) Case Code (5)
