NP Core Observation

Sets minimum expectations for representing a clinical measurement, finding, or assessment for a patient in Nepal.

Canonical URL: http://fhir.digitalhealth.gov.np/core/StructureDefinition/np-core-observation
Resource / type: Observation
Based on: http://hl7.org/fhir/StructureDefinition/Observation
Claim conformance: Put the canonical URL in meta.profile of each instance.

Required elements

“Always” means the element must be present in every instance. Otherwise it is required only when its parent element is present.

Element	Card.	When
`Observation.status` registered \| preliminary \| final \| amended +	1..1	Always
`Observation.category` Classification of type of observation	1..*	Always
`Observation.code` Type of observation (code / type)	1..1	Always
`Observation.subject` Who and/or what the observation is about	1..1	Always
`Observation.component.code` Type of component observation (code / type)	1..1	If parent present

Must-support elements

If your system has this data it SHALL send it, and receivers SHALL process it. Must-support does not by itself make an element mandatory.

Observation.status
Observation.category
Observation.code
Observation.subject
Observation.encounter
Observation.effective[x]
Observation.performer
Observation.value[x]
Observation.note

Terminology bindings

required: codes SHALL come from the value set · extensible: use the value set if a suitable code exists · preferred / example: guidance only.

Element	Strength	Value set
`Observation.language`	preferred	http://hl7.org/fhir/ValueSet/languages
`Observation.status`	required	http://hl7.org/fhir/ValueSet/observation-status
`Observation.category`	preferred	http://hl7.org/fhir/ValueSet/observation-category
`Observation.code`	extensible	http://hl7.org/fhir/ValueSet/observation-codes
`Observation.dataAbsentReason`	extensible	http://hl7.org/fhir/ValueSet/data-absent-reason
`Observation.interpretation`	extensible	http://hl7.org/fhir/ValueSet/observation-interpretation
`Observation.bodySite`	example	http://hl7.org/fhir/ValueSet/body-site
`Observation.method`	example	http://hl7.org/fhir/ValueSet/observation-methods
`Observation.referenceRange.type`	preferred	http://hl7.org/fhir/ValueSet/referencerange-meaning
`Observation.referenceRange.appliesTo`	example	http://hl7.org/fhir/ValueSet/referencerange-appliesto
`Observation.component.code`	example	http://hl7.org/fhir/ValueSet/observation-codes
`Observation.component.dataAbsentReason`	extensible	http://hl7.org/fhir/ValueSet/data-absent-reason
`Observation.component.interpretation`	extensible	http://hl7.org/fhir/ValueSet/observation-interpretation

Official examples

Observation/ExampleNPCoreObservation

View in IG ↗

{
  "resourceType": "Observation",
  "id": "ExampleNPCoreObservation",
  "meta": {
    "profile": [
      "http://fhir.digitalhealth.gov.np/core/StructureDefinition/np-core-observation"
    ]
  },
  "status": "final",
  "category": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "code": "vital-signs",
          "display": "Vital Signs"
        }
      ]
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "85354-9",
        "display": "Blood pressure panel with all children optional"
      }
    ]
  },
  "subject": {
    "reference": "Patient/ExampleNPCorePatient"
  },
  "encounter": {
    "reference": "Encounter/ExampleNPCoreEncounter"
  },
  "effectiveDateTime": "2026-05-10T09:10:00+05:45",
  "performer": [
    {
      "reference": "Practitioner/ExampleNPCorePractitioner"
    }
  ],
  "component": [
    {
      "code": {
        "coding": [
          {
            "system": "http://loinc.org",
            "code": "8480-6",
            "display": "Systolic blood pressure"
          }
        ]
      },
      "valueQuantity": {
        "value": 148,
        "unit": "mmHg",
        "system": "http://unitsofmeasure.org",
        "code": "mm[Hg]"
      }
    },
    {
      "code": {
        "coding": [
          {
            "system": "http://loinc.org",
            "code": "8462-4",
            "display": "Diastolic blood pressure"
          }
        ]
      },
      "valueQuantity": {
        "value": 94,
        "unit": "mmHg",
        "system": "http://unitsofmeasure.org",
        "code": "mm[Hg]"
      }
    }
  ]
}

Narrative (text) removed for readability.