anchor.diff:  | | |mmlHd:code|string|#IMPLIED|
   | | |mmlHd:type|string|#IMPLIED|
   | | |mmlHd:modification|string|#IMPLIED|
  -|1.1.5.2.9.2|mmlHd:timeHdStart| |dateTime|?|
  -| | |mmlHd:timeDirection|string|#REQUIRED|
  -|1.1.5.2.9.3|mmlHd:timeHdEnd| |dateTime|?|
  +|1.1.5.2.9.2|mmlHd:timeHdStart| |duration|?|
  +| | |mmlHd:timeDirection|string|#REQUIRED|
  +|1.1.5.2.9.3|mmlHd:timeHdEnd| |duration|?|
   | | |mmlHd:timeDirection|string|#REQUIRED|
   |1.1.5.2.10|mmlHd:dialysateFlow| | |*|
   |1.1.5.2.10.1|mmlHd:dialysateFlowRate| |decimal| |
   | | |mmlHd:unit|string|#REQUIRED|
  -|1.1.5.2.10.2|mmlHd:timeHdStart| |dateTime|?|
  -| | |mmlHd:timeDirection|string|#REQUIRED|
  -|1.1.5.2.10.3|mmlHd:timeHdEnd| |dateTime|?|
  +|1.1.5.2.10.2|mmlHd:timeHdStart| |duration|?|
  +| | |mmlHd:timeDirection|string|#REQUIRED|
  +|1.1.5.2.10.3|mmlHd:timeHdEnd| |duration|?|
   | | |mmlHd:timeDirection|string|#REQUIRED|
   |1.1.5.2.11|mmlHd:dialysateTemp| | |*|
   |1.1.5.2.11.1|mmlHd:dialysateTempValue| |decimal| |
   | | |mmlHd:unit|string|#REQUIRED|
  -|1.1.5.2.11.2|mmlHd:timeHdStart| |dateTime| |
  -| | |mmlHd:timeDirection|string|#REQUIRED|
  -|1.1.5.2.11.3|mmlHd:timeHdEnd| |dateTime|?|
  +|1.1.5.2.11.2|mmlHd:timeHdStart| |duration| |
  +| | |mmlHd:timeDirection|string|#REQUIRED|
  +|1.1.5.2.11.3|mmlHd:timeHdEnd| |duration|?|
   | | |mmlHd:timeDirection|string|#REQUIRED|
   |1.1.5.2.12|mmlHd:needle| |string|*|
   | | |mmlHd:code|string|#IMPLIED|
  
positive.code: |1.1.5.1.1.6|mmlHd:bloodFlow| | |*|
  |1.1.5.1.1.6.1|mmlHd:bloodFlowRate| |decimal| |
  | | |mmlHd:unit|string|#REQUIRED|
  |1.1.5.1.1.6.2|mmlHd:timeHdStart| |dateTime|?|
  | | |mmlHd:timeDirection|string|#REQUIRED|
  |1.1.5.1.1.6.3|mmlHd:timeHdEnd| |dateTime|?|
  | | |mmlHd:timeDirection|string|#REQUIRED|
  |1.1.5.1.1.7|mmlHd:dialyser| |string|?|
  | | |mmlHd:code|string|#IMPLIED|
  
negative.code: | | |mmlHd:type|string|#REQUIRED|
  |1.1.5.1.1.14.2|mmlHd:dose| |decimal|?|
  | | |mmlHd:unit|string|#IMPLIED|
  |1.1.5.1.1.14.3|mmlHd:timeHdStart| |duration|?|
  | | |mmlHd:timeDirection|string|#REQUIRED|
  |1.1.5.1.1.14.4|mmlHd:timeHdEnd| |duration|?|
  | | |mmlHd:timeDirection|string|#REQUIRED|
  |1.1.5.1.1.14.5|mmlHd:routeName| |string|?|
  | | |mmlHd:code|string|#IMPLIED|
  