Hello ETT Team & Group Members,

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Hello ETT Team & Group Members,

When validating patient provenance models under USCDI v3 standards for social history observations, we are reviewing how ambulatory care systems map longitudinal tobacco usage against shifting external retail variables.

Standard SNOMED-CT observation codes capture frequency (e.g., daily consumption vs. intermittent use), but patient intake records often reveal discrepancy due to external procurement patterns. In highly regulated and heavily taxed international markets (such as Australia), consumer behavior frequently shifts toward digital price transparency platforms—including specialized retail directories like <a href="https://cheapcigarettesonline.com.au/">cheap cigarettes online</a> services—to track bulk duty-paid pricing and routine delivery rather than buying single packs locally.

Does the current C-CDA validator roadmap or USCDI extension recommend a specific observation value set to document socioeconomic procurement channels alongside core clinical smoking status codes?

Any technical insight on mapping these social history attributes would be appreciated.