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Standard Terminologies

Standard Terminologies are the common language used within FOSPS to semantically annotate content and ensure interoperability across services.

Primary Terminologies​

SNOMED-CT (Systematized Nomenclature of Medicine Clinical Terms)​

  • Purpose: Clinical concepts and procedures
  • Usage: Medical conditions, symptoms, procedures
  • Example: Pregnancy (code: 77386006)

ICPC-2 (International Classification of Primary Care version 2)​

  • Purpose: Primary care classification
  • Usage: Symptoms, diagnoses, interventions
  • Example: Pregnancy (code: W78)

Additional Terminologies​

  • LOINC: Laboratory and clinical observations
  • ATC: Anatomical Therapeutic Chemical classification
  • ICD: International Classification of Diseases
  • RxNorm: Medication nomenclature

Usage in FOSPS​

Preprocessing​

Preprocessors use terminologies to:

Focusing​

Lenses use terminology codes to:

Matchmaking​

Supporting Material Matchmaking uses terminologies to:

  • Link SM to relevant conditions
  • Match patient IPS/PV with content
  • Filter by medical concepts

Terminologies are embedded in FHIR using the HtmlElementLink extension:

{
  "extension": [{
    "url": "elementClass",
    "valueString": "pregnancy-category"
  }, {
    "url": "concept",
    "valueCodeableConcept": {
      "coding": [{
        "system": "http://snomed.info/sct",
        "code": "77386006",
        "display": "Pregnancy"
      }]
    }
  }]
}

Benefits​

  • Interoperability: Common language across systems
  • Semantic precision: Unambiguous concept identification
  • Automatic processing: Machine-readable annotations
  • Multilinguality: Concept codes transcend language barriers