This is the set of resources that conform to either of the profiles Observation - Pregnancy: status (http://hl7.org/fhir/uv/ips/StructureDefinition/Observation-pregnancy-status-uv-ips) and Observation Pregnancy - Status (IPS) (http://hl7.org/fhir/uv/ips/StructureDefinition/Observation-pregnancy-status-uv-ips). E.g. what you have to deal with if you get resources conforming to one of them
| Name | Flags | Card. | Type | Description & Constraints    Filter:   | 
|---|---|---|---|---|
|   Observation | C | 0..* | Measurements and simple assertions Constraints: obs-6, obs-7 | |
|    meta | Σ | 0..1 | Meta | Metadata about the resource | 
|    implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created | 
|    language | 0..1 | code | Language of the resource content Binding: ?? (preferred): A human language. | |
|    text | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements | |
|    contained | 0..* | Resource | Contained, inline Resources | |
|    extension | 0..* | Extension | Additional content defined by implementations | |
|    modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored | 
|    identifier | Σ | 0..* | Identifier | Business Identifier for observation | 
|    basedOn | Σ | 0..* | Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest) | Fulfills plan, proposal or order | 
|    partOf | Σ | 0..* | Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy) | Part of referenced event | 
|    status | ?!Σ | 1..1 | code | registered | preliminary | final | amended + Binding: ?? (required): Codes providing the status of an observation. | 
|    category | 0..* | CodeableConcept | Classification of  type of observation Binding: ?? (preferred): Codes for high level observation categories. | |
|    code | S | 1..1 | ?? | left: Concept - reference to a terminology or just  text; right: Type of observation (code / type) Binding: ?? (example): Codes identifying names of simple observations. | 
|    subject | SΣ | 1..1 | Reference(Patient (IPS) | #sd-Patient-uv-ips-Patient-uv-ips) | Who and/or what the observation is about | 
|     extension | 0..* | Extension | Additional content defined by implementations | |
|     reference | SΣ | 1..1 | string | Literal reference, Relative, internal or absolute URL | 
|     type | Σ | 0..1 | uri | Type the reference refers to (e.g. "Patient") Binding: ?? (extensible): Aa resource (or, for logical models, the URI of the logical model). | 
|     identifier | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known | 
|     display | Σ | 0..1 | string | Text alternative for the resource | 
|    focus | Σ | 0..* | Reference(Resource) | What the observation is about, when it is not about the subject of record | 
|    encounter | Σ | 0..1 | Reference(Encounter) | Healthcare event during which this observation is made | 
|    effective[x] | SΣ | 1..1 | dateTime | Clinically relevant time/time-period for observation | 
|     extension | 0..* | Extension | Extension Slice: Unordered, Open by value:url | |
|     value | 0..1 | dateTime | Primitive value for dateTime | |
|    issued | Σ | 0..1 | instant | Date/Time this version was made available | 
|    performer | Σ | 0..* | Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson) | Who is responsible for the observation | 
|    value[x] | Σ | 0..1 | Actual result | |
|     valueQuantity | Quantity | |||
|     valueCodeableConcept | CodeableConcept | |||
|     valueString | string | |||
|     valueBoolean | boolean | |||
|     valueInteger | integer | |||
|     valueRange | Range | |||
|     valueRatio | Ratio | |||
|     valueSampledData | SampledData | |||
|     valueTime | time | |||
|     valueDateTime | dateTime | |||
|     valuePeriod | Period | |||
|    dataAbsentReason | 0..1 | CodeableConcept | Why the result is missing Binding: ?? (extensible): Codes specifying why the result (Observation.value[x]) is missing. | |
|    interpretation | 0..* | CodeableConcept | High, low, normal, etc. Binding: ?? (extensible): Codes identifying interpretations of observations. | |
|    note | 0..* | Annotation | Comments about the observation | |
|    method | 0..1 | CodeableConcept | How it was done Binding: ?? (example): Methods for simple observations. | |
|    hasMember | SΣ | 0..* | Reference(Observation - Pregnancy: EDD | #sd-Observation-pregnancy-edd-uv-ips-Observation-pregnancy-edd-uv-ips) | Expected Delivery Date | 
|     extension | 0..* | Extension | Additional content defined by implementations | |
|     reference | SΣ | 1..1 | string | Literal reference, Relative, internal or absolute URL | 
|     type | Σ | 0..1 | uri | Type the reference refers to (e.g. "Patient") Binding: ?? (extensible): Aa resource (or, for logical models, the URI of the logical model). | 
|     identifier | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known | 
|     display | Σ | 0..1 | string | Text alternative for the resource | 
|    derivedFrom | Σ | 0..* | Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence) | Related measurements the observation is made from | 
|  Documentation for this format | ||||