Rational Developer for System z
PL/I for Windows, Version 8.0, Programming Guide

content_character_reference

This event occurs in element content for numeric character references (Unicode code points or "scalar values") of the form "&#dd;" or "&#xhh;", where "d" and "h" represent decimal and hexadecimal digits, respectively. The parser passes a FIXED BIN(31) value that contains the corresponding integer value.

Rational Developer for System z
PL/I for Windows, Version 8.0, Programming Guide