C FDA C54450 Patient Problem Codes FDA CDRH C48660 3189 NOT APPLICABLE Determination of a value is not relevant in the current context. C48655 3192 MISSING VALUE REASON C FDA C54451 Medical Device Problem Codes FDA CDRH C48660 3189 NOT APPLICABLE Determination of a value is not relevant in the current context. C48655 3192 MISSING VALUE REASON