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An Early Adopter’s View of Vocabulary for the ICSR

An Early Adopter’s View of Vocabulary for the ICSR. Vocabulary TC and Patient Safety SIG Joint Committee Meeting May 3, 2004. ICSR Ballot has 70 coded attributes:. ICSR Ballot has 70 coded attributes:. External Terminologies. Binding External Code Sets to attributes

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An Early Adopter’s View of Vocabulary for the ICSR

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  1. An Early Adopter’s View of Vocabulary for the ICSR Vocabulary TC and Patient Safety SIG Joint Committee Meeting May 3, 2004

  2. ICSR Ballot has 70 coded attributes:

  3. ICSR Ballot has 70 coded attributes:

  4. External Terminologies • Binding External Code Sets to attributes • Case 1 – Class is a specific observation in LOINC or HL7 • Example: Number of brothers and sisters • Case 2 – Class is a generic observation • Example: Observation as part of the patient’s clinical statement to record everything from current weight and age to existing medical conditions (MedDRA, SNOMED-CT, or LOINC) • Case 3 – EntityCode • Country Code, Drug Code, Ingredient, Blood Product Code, Device Code, Vaccine? • Case 4 – Role Code • Occupation and/or Job Code • Context-Specific Conformance Profiles • Specify allowed bindings in Standard, constrain in Profile

  5. Creating Value Sets from External Code Sets • Case 1: CE attribute is constrained to one specific external terminology • Blood Product Type, Country Code • Case 2: CE attribute can be either external terminology A or B • Example: Drug Code (RxNorm or NDC) • Can not mix within a set, class, or report • Case 3: LOINC concept constrains Observation.code and Answer List in LOINC constrains Observation.value • Case 4: HL7 concept constrains Observation.code and SNOMED-CT or MedDRA constrains Observation.value • Reaction.code and Reaction.value • ConcurrentObservation.code (can mix LOINC and SNOMED) • Case 5: CE attribute constrained to one value • Autopsy.code

  6. E2B, MedWatch, VAERS codes • Add to LOINC or HL7? • May vary by report type (i.e, drug vs. device) • Represented as Observations (Summaries, judgments) • CaseSeriousness • ReactionRelatedness.code • Severity.code • Outcome.code • Interpretation.code • Intervention.code • Indication.code • ActionTaken.code • InterventionCharacterization.code • DeviceEvaluationObservation.code • Represented as Acts • Other Report Types • Document Types • More

  7. Code ST, The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache. codeSystem UID, Specifies the code system that defines the code. codeSystemName ST, The common name of the coding system. codeSystemVersion ST, If applicable, a version descriptor defined specifically for the given code system. displayName ST, A name or title for the code, under which the sending system shows the code value to its users. originalText ED, The text or phrase used as the basis for the coding. Translation SET<CD>, A set of other concept descriptors that translate this concept descriptor into other code systems. Observation Code and Value Datatypes

  8. To LOINC-ize or to HL7-ize? Observation.code LOINC HL7 code = 12345-6 19423 (under Observtiontype) codeSystem = LOINC OID HL7 ActCode OID codeSystemVersion = x.x x.x displayName = DrugCharacterizationCode DrugCharacterizationCode Observation.value code = “S”,”I”, or “C” “S”,”I”, or “C” codeSystem = LOINC? HL7 ObservationValue OID codeSystemVersion = x.x x.x displayName = Suspect, Interacting or Suspect, Interacting or Concommittant Concommittant

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