At CDR, we might have to use the “prior rules” or the “current rules,” as described
in DI 24503.050.
Initial claim filed before March 27, 2017
If there has not been a prior CDR, use the prior rules.
If there has been a prior CDR:
Use the prior rules if the comparison point decision (CPD) is before March 27, 2017,
see DI 24503.035.
Initial claim filed on or after March 27, 2017
To determine which medical evidence rules to apply, we must look at the filing date
of the initial claim associated with the CDR. The same rules will apply throughout
the entire CDR determination or decision, including the appeals process. Detailed
instructions can be found in DI 24503.050D.7.