FHIR Resources for Nutrition Assessment and Reassessment

Nutrition Assessment involves collecting and analyzing data to identify nutrition-related issues.

Nutrition Assessment Data and Associated FHIR Resources

Several FHIR resources can represent different aspects of the assessment:

Types of data collected	Purpose	Example	FHIR Resource
Food- and nutrition-related history	Capture dietary habits and intake information	Food diary entries	Observation NutritionOrder NutritionProduct NutritionIntake
Anthropometric measurements	Record physical measurements such as weight, height, BMI	Weight: 70 kg, Height: 170 cm	Observation
Tests	Document laboratory or diagnostic tests	Blood glucose levels	Observation
Test results	Record results of tests	Hemoglobin A1c: 5.5%	Observation
Nutrition-focused physical examination findings	Detailed findings from a nutrition-focused physical exam	Skin condition, hair texture	Observation Condition
Patient history	Capture medical history	Chronic conditions, surgeries	Observation

Example

Nutrition Assessment

{
  "resourceType": "Observation",
  "id": "observation-weight",
  "status": "final",
  "category": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "code": "vital-signs",
          "display": "Vital Signs"
        }
      ]
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://snomed.info/sct",
        "code": "27113001",
        "display": "Body weight (observable entity)"
      }
    ],
    "text": "Body Weight"
  },
  "subject": {
    "reference": "Patient/example"
  },
  "valueQuantity": {
    "value": 70,
    "unit": "kg",
    "system": "http://unitsofmeasure.org",
    "code": "kg"
  }
}

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Nutrition Assessment Data and Associated FHIR Resources

Example