Final answer:
The data element smoking status in the Common Clinical Data Set is standardized using SNOMED CT, which enables consistent documentation across healthcare systems.
Step-by-step explanation:
The standard attached to the data element smoking status contained in the Common Clinical Data Set is SNOMED CT (Systematized Nomenclature of Medicine Clinical Terms). SNOMED CT is a comprehensive, multilingual clinical healthcare terminology that provides precise coding of data for healthcare systems. It allows for a consistent way to index, store, retrieve, and aggregate clinical data across specialties and sites of care.
When documenting smoking status, healthcare providers can use SNOMED CT codes to represent whether a patient is a current smoker, former smoker, never smoked, or if the smoking status is unknown.