I am mapping conditions from my source database in ICD9/10 code to standard concept_ids (SNOMED). Some of the ICD codes are actually measurement/procedures/observations so they shouldn't have been on the conditions table. For example, '790.1' is the ICD9CM code for 'Elevates Sedimentation Rate', which is technically a Measurement but the clinician input it as a condition. Should I exclude or include these values? Could they affect future studies? I would deeply appreciate your assistance!