In the MolecularSequence resource for FHIR r4 , the specimen attribute identifies the Specimen used for sequencing
"specimen":
"identifier":
"type": "dna"
"coordinateSystem": 0
"patient": {
"reference": "Patient/example"
}
"specimen":
"device":
"performer":
"quantity":
"referenceSeq": {
"referenceSeqId": {
"coding": [
{
"system": "http://www.ncbi.nlm.nih.gov/nuccore",
"code": "NC_000009.11"
}
]
},
"strand": "watson",
"windowStart": 22125500,
"windowEnd": 22125510
}
"variant": [
{
"start": 22125503,
"end": 22125504,
"observedAllele": "C",
"referenceAllele": "G"
}
]
"observedSeq":
"quality":
"readCoverage":
"repository": [
{
"type": "openapi",
"url": "http://grch37.rest.ensembl.org/ga4gh/variants/3:rs1333049?content-type=application/json",
"name": "GA4GH API",
"variantsetId": "3:rs1333049"
}
]
"pointer":
"structureVariant":