Note: The class description below has been excerpted from the Hl7 2.3.1 documentation. Sectional
references made below also refer to the same documentation.
In prior versions of HL7, this data type was always specified to be in the format YYYYMMDD. In the current and future
versions, the precision of a date may be expressed by limiting the number of digits used with the format specification
YYYY[MM[DD]]. Thus, YYYY is used to specify a precision of "year," YYYYMM specifies a precision of "month,"
and YYYYMMDD specifies a precision of "day."
By site-specific agreement, YYYYMMDD may be used where backward compatibility must be maintained.
Examples: |19880704| |199503|