Shown below is an example of how a number of OpenMRS module objects would map to FHIR resources, as proposed by Grahame Grieve.
The left side of the relationship indicates the OpenMRS attribute, while the right indicated the FHIR resource mapping.
Patient
private Integer patientId :: n/a - unused
private Set<PatientIdentifier> identifiers :: Patient.identifier
private Integer patientIdentifierId :: not mapped
private Patient patient :: not mapped
private String identifier :: patient.identifier.value
private PatientIdentifierType identifierType ::
private Integer patientIdentifierTypeId :: mapping table, type id ==> URL
private String format :: not mapped
private Boolean required = Boolean.FALSE :: not mapped
private String formatDescription :: not mapped
private Boolean checkDigit = Boolean.FALSE :: not mapped
private String validator :: not mapped
private LocationBehavior locationBehavior :: not mapped
private UniquenessBehavior uniquenessBehavior :: not mapped
private Location location :: Patient.identifier.assigner (URL)
private Boolean preferred = false :: if true, Patient.identifier.use = usual
Person
protected Integer personId :: [base]/Patient/[personId]
private Set<PersonAddress> addresses = null :: Patient.address
private Integer personAddressId :: not mapped
private Person person :: not mapped
private Boolean preferred = false :: Patient.address.use ? mapping
private String address1 :: Patient.address.line
private String address2 :: Patient.address.line
private String address3 :: Patient.address.line
private String address4 :: Patient.address.line
private String address5 :: Patient.address.line
private String address6 :: Patient.address.line
private String cityVillage :: Patient.address.city
private String countyDistrict :: Patient.address.extension :
"http://hl7.org/fhir/Profile/iso-21090#address-part-county",
valueString
private String stateProvince :: Patient.address.state
private String country :: Patient.address.country
private String postalCode :: Patient.address.zip
private String latitude :: Patient.address.extension -> Location
private String longitude :: Patient.address.extension -> Location
private Date startDate :: Patient.address.period.start
private Date endDate :: Patient.address.period.end
private Set<PersonName> names = null :: Patient.name
private Integer personNameId :: not mapped
private Person person :: not mapped
private Boolean preferred = false :: Patient.name.use = usual
private String prefix :: Patient.name.prefix
private String givenName :: Patient.name.given
private String middleName :: Patient.name.given
private String familyNamePrefix :: folded into Patent.name.family
(else, Patient.name.family with extension
http://hl7.org/fhir/Profile/iso-21090#name-qualifer, valueCode = PFX)
private String familyName :: Patent.name.family
private String familyName2 :: Patent.name.family
private String familyNameSuffix :: Patent.name.suffix
private String degree :: Patent.name.suffix
private Set<PersonAttribute> attributes = null ::
private integer personAttributeTypeId :: mapping table that
defines how attributes map - whether existing elements or extensions
private String value :: depends on mapping
private String gender :: Patient.gender (mapped: code = M or code = F,
code system is http://hl7.org/fhir/v2/0001)
private Date birthdate :: Patient.birthDate
private Boolean birthdateEstimated = false :: Extension if worth mapping
private Boolean deathdateEstimated = false :: Extension if worth mapping
private Boolean dead = false :: if true, and no date, then
Patient.deceasedBoolean= true
private Date deathDate :: Patient.deceasedDate
private Concept causeOfDeath :: Patient.extension
private User personCreator :: not mapped (would be in provenance if
worth mapping)
private Date personDateCreated :: not mapped (would be in provenance
if worth mapping)
private User personChangedBy :: not mapped (would be in provenance if
worth mapping)
private Date personDateChanged :: not mapped (would be in provenance
if worth mapping)
private Boolean personVoided = false :: if true, Patient.active =
false, else Patient.active = true
private User personVoidedBy :: not mapped (would be in provenance if
worth mapping)
private Date personDateVoided :: not mapped (would be in provenance
if worth mapping)
private String personVoidReason :: not mapped (would be in provenance
if worth mapping)
private boolean isPatient :: not mapped
Obs
protected String accessionNumber :: Observation.identifier protected String comment :: Observation.comments protected ComplexData complexData :: -- not mapped -- protected Concept concept :: Observation.Name protected Encounter encounter :: Observation.extension http://resources.openmrs.org/doc/fhir/profiles/vitalsigns.xml#encounter "Indicates that the information in the resource was gathered at a particular location" protected Set<Obs> groupMembers:: Observation.relatedItem.target (type = has-component) protected Location location :: Observation.extension http://resources.openmrs.org/doc/fhir/profiles/vitalsigns.xml#location protected Date obsDatetime :: Observation.appliesDateTime protected Obs obsGroup:: n/a - back links are implicit not explicit protected Integer obsId :: n/a - goes in the URL e.g. [base]/Observation/[obsId] protected Order order :: not mapped (at least for now) protected Person person :: Observation.subject protected Integer personId :: not mapped static long serialVersionUID :: not mapped protected Concept valueCoded :: Observation.valueCodeableConcept protected ConceptName valueCodedName :: Observation.valueCodeableConcept protected String valueComplex :: Observation.valueAttachment protected Date valueDatetime :: Observation.valueDateTime protected Drug valueDrug :: Observation.valueCodeableConcept protected Integer valueGroupId :: not mapped protected String valueModifier :: not mapped protected Double valueNumeric :: Observation.valueQuantity protected String valueText:: Observation.valueStirng