NP Core Laboratory Panel Observation

Sets minimum expectations for representing a laboratory panel — a named grouping of related test results such as a CBC or LFT — in Nepal.

Open in IG ↗

Canonical URL: http://fhir.digitalhealth.gov.np/core/StructureDefinition/np-core-lab-panel-observation
Resource / type: Observation
Based on: http://fhir.digitalhealth.gov.np/core/StructureDefinition/np-core-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.category:lab` Classification of type of observation	1..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.derivedFrom.type` Resource type of the source; SHALL be populated so np-labpanel-1 can be evaluated	1..1	If parent present
`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.category:lab
Observation.code
Observation.subject
Observation.encounter
Observation.effective[x]
Observation.performer
Observation.value[x]
Observation.note
Observation.specimen
Observation.hasMember
Observation.derivedFrom
Observation.derivedFrom.type

Fixed and pattern values

Element	Value
`Observation.category:lab`	{ "coding": [ { "system": "http://terminology.hl7.org/CodeSystem/observation-category", "code": "laboratory" } ] }

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.category:lab`	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.derivedFrom.type`	extensible	http://hl7.org/fhir/ValueSet/resource-types
`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

Rules (invariants)

np-labpanel-1 A laboratory panel SHALL either have panel members (hasMember) or be derived from a clinical document or imaging study (at least one derivedFrom whose type is DocumentReference or ImagingStudy).

FHIRPath

hasMember.exists() or derivedFrom.where(type.endsWith('DocumentReference') or type.endsWith('ImagingStudy')).exists()

Official examples

Observation/ExampleNPCoreLabPanelObservation

View in IG ↗

{
  "resourceType": "Observation",
  "id": "ExampleNPCoreLabPanelObservation",
  "meta": {
    "profile": [
      "http://fhir.digitalhealth.gov.np/core/StructureDefinition/np-core-lab-panel-observation"
    ]
  },
  "status": "final",
  "category": [
    {
      "coding": [
        {
          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "code": "laboratory",
          "display": "Laboratory"
        }
      ]
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "24362-6",
        "display": "Renal function 2000 panel - Serum or Plasma"
      }
    ]
  },
  "subject": {
    "reference": "Patient/ExampleNPCorePatient"
  },
  "encounter": {
    "reference": "Encounter/ExampleNPCoreEncounter"
  },
  "effectiveDateTime": "2026-05-10T11:00:00+05:45",
  "performer": [
    {
      "reference": "Organization/ExampleNPCoreOrganization"
    }
  ],
  "hasMember": [
    {
      "reference": "Observation/ExampleNPCoreLabResultObservation"
    },
    {
      "reference": "Observation/ExampleNPCoreLabResultObservationBUN"
    }
  ]
}

Narrative (text) removed for readability.