Data Type:Numeric Data Length:unknown  A domain used to identify
money attributes or data elements which comprises of a + or -
sign and a £ sign.  AMOUNT STERLING is an amount of money where
the CURRENCY TYPE equals 'GBP Pound Sterling'.  This
was e-GIF approved for use in NHS England. e-GIF and the
Government Data Standards Catalogue have been archived and
are available for reference only.