• Include these codes as defined in http://terminology.hl7.org/CodeSystem/v3-ActCode version 📍8.0.0

  Code	Display	Definition
  CHLDCARE	Day care - Child care Interaction	**Description:** Exposure participants' interaction occurred in a child care setting
  CONVEYNC	Common Conveyance Interaction	**Description:** An interaction where the exposure participants traveled in/on the same vehicle (not necessarily concurrently, e.g. both are passengers of the same plane, but on different flights of that plane).
  HLTHCARE	Health Care Interaction - Not Patient Care	**Description:** Exposure participants' interaction occurred during the course of health care delivery or in a health care delivery setting, but did not involve the direct provision of care (e.g. a janitor cleaning a patient's hospital room).
  HOMECARE	Care Giver Interaction	**Description:** Exposure interaction occurred in context of one providing care for the other, i.e. a babysitter providing care for a child, a home-care aide providing assistance to a paraplegic.
  HOSPPTNT	Hospital Patient Interaction	**Description:** Exposure participants' interaction occurred when both were patients being treated in the same (acute) health care delivery facility.
  HOSPVSTR	Hospital Visitor Interaction	**Description:** Exposure participants' interaction occurred when one visited the other who was a patient being treated in a health care delivery facility.
  HOUSEHLD	Household Interaction	**Description:** Exposure interaction occurred in context of domestic interaction, i.e. both participants reside in the same household.
  INMATE	Inmate Interaction	**Description:** Exposure participants' interaction occurred in the course of one or both participants being incarcerated at a correctional facility
  INTIMATE	Intimate Interaction	**Description:** Exposure interaction was intimate, i.e. participants are intimate companions (e.g. spouses, domestic partners).
  LTRMCARE	Long Term Care Facility Interaction	**Description:** Exposure participants' interaction occurred in the course of one or both participants being resident at a long term care facility (second participant may be a visitor, worker, resident or a physical place or object within the facility).
  PLACE	Common Space Interaction	**Description:** An interaction where the exposure participants were both present in the same location/place/space.
  PTNTCARE	Health Care Interaction - Patient Care	**Description:** Exposure participants' interaction occurred during the course of health care delivery by a provider (e.g. a physician treating a patient in her office).
  SCHOOL2	School Interaction	**Description:** Exposure participants' interaction occurred in an academic setting (e.g., participants are fellow students, or student and teacher).
  SOCIAL2	Social/Extended Family Interaction	**Description:** An interaction where the exposure participants are social associates or members of the same extended family
  SUBSTNCE	Common Substance Interaction	**Description:** An interaction where the exposure participants shared or co-used a common substance (e.g. drugs, needles, or common food item).
  TRAVINT	Common Travel Interaction	**Description:** An interaction where the exposure participants traveled together in/on the same vehicle/trip (e.g. concurrent co-passengers).
  WORK2	Work Interaction	**Description:** Exposure interaction occurred in a work setting, i.e. participants are co-workers.
  _ActExposureCode	ActExposureCode	Concepts that identify the type or nature of exposure interaction. Examples include "household", "care giver", "intimate partner", "common space", "common substance", etc. to further describe the nature of interaction.

This value set expansion contains 18 concepts.