Missing system and system-spec

Affected concepts

NPU01370

Comment

@Helene Tuft Stavnes : bilirubins is mapped to Bilirubin. When looking at Bilirubin in SCT browser i'm not sure if we actually mapped to the right concept. In NPU bilirubins means  "The sum of conjugated (direct) bilirubin (Bilirubin glucuronide (CAS 27071-67-6) + Delta bilirubin (MSH D001663) and unconjugated (indirect) bilirubin (bound to serum albumin))". In SCT browser however,  bilirubin has a synonym "conjugated and unconjungated bilirubin"

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