Union of http://www.cdc.gov/nhsn/fhirportal/dqm/ig/StructureDefinition/ach-monthly-encounter and http://www.cdc.gov/nhsn/fhirportal/dqm/ig/StructureDefinition/ach-monthly-encounter

This is the set of resources that conform to either of the profiles ACH Monthly Event Encounter (http://www.cdc.gov/nhsn/fhirportal/dqm/ig/StructureDefinition/ach-monthly-encounter) and ACH Monthly Event Encounter (http://www.cdc.gov/nhsn/fhirportal/dqm/ig/StructureDefinition/ach-monthly-encounter). E.g. what you have to deal with if you get resources conforming to one of them

Structure

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Encounter SC0..*left: An interaction during which services are provided to the patient; right: (NHSN-MS) An interaction between a patient and healthcare provider(s) for the purpose of providing healthcare service(s) or assessing the health status of a patient during the NHSN ACH Monthly reporting period. This resource is required for the ACH Monthly Measure and must be referenced in all Individual MeasureReport resources for this measure.
Constraints: encounter-ach-monthly-initial-population, encounter-location-type-initial-population
... meta Σ0..1MetaMetadata about the resource
.... extension 0..*ExtensionAdditional content defined by implementations
.... versionId Σ0..1idVersion specific identifier
.... lastUpdated Σ0..1instantWhen the resource version last changed
.... source Σ0..1uriIdentifies where the resource comes from
.... profile Σ0..*canonical(StructureDefinition)Profiles this resource claims to conform to
.... security Σ0..*CodingSecurity Labels applied to this resource
Binding: ?? (extensible): Security Labels from the Healthcare Privacy and Security Classification System.
.... tag Σ0..*CodingTags applied to this resource
Binding: ?? (example): Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... language 0..1codeLanguage of the resource content
Binding: ?? (preferred): A human language.
... text 0..1NarrativeText 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..*ResourceContained, inline Resources
... extension 0..*ExtensionAdditional content defined by implementations
... modifierExtension ?!0..*ExtensionExtensions that cannot be ignored
... identifier SΣ1..*Identifierleft: Identifier(s) by which this encounter is known; right: (NHSN-MS)(USCDI) Identifier(s) by which this encounter is known
.... extension 0..*ExtensionAdditional content defined by implementations
.... use ?!SΣ0..1codeleft: usual | official | temp | secondary | old (If known); right: (NHSN-MS) usual | official | temp | secondary | old (If known)
Binding: ?? (required): Identifies the purpose for this identifier, if known .
.... type SΣ0..1CodeableConceptleft: Description of identifier; right: (NHSN-MS)(USCDI) Description of identifier
Binding: ?? (extensible): A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.
.... system SΣ1..1urileft: The namespace for the identifier value; right: (NHSN-MS)(USCDI) The namespace for the identifier value
Example General: http://www.acme.com/identifiers/patient
.... value SΣ1..1stringleft: The value that is unique; right: (NHSN-MS)(USCDI) The value that is unique
Example General: 123456
.... period SΣ0..1Periodleft: Time period when id is/was valid for use; right: (NHSN-MS) Time period when id is/was valid for use
.... assigner Σ0..1Reference(Organization)Organization that issued id (may be just text)
... status ?!SΣ1..1codeleft: triaged | in-progress | finished | onleave | entered-in-error; right: (NHSN-MS) triaged | in-progress | finished | onleave | entered-in-error
Binding: ?? (required)
... statusHistory 0..*BackboneElementList of past encounter statuses
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... status 1..1codeplanned | arrived | triaged | in-progress | onleave | finished | cancelled +
Binding: ?? (required): Current state of the encounter.
.... period 1..1PeriodThe time that the episode was in the specified status
... class SΣ1..1Codingleft: Classification of patient encounter; right: (NHSN-MS)(USCDI) Classification of patient encounter
Binding: ?? (extensible): Classification of the encounter.
... classHistory S0..*BackboneElementleft: List of past encounter classes; right: (NHSN-MS) List of past encounter classes
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... class S1..1Codingleft: inpatient | outpatient | ambulatory | emergency +; right: (NHSN-MS) inpatient | outpatient | ambulatory | emergency +
Binding: ?? (extensible): Classification of the encounter.
.... period S1..1Periodleft: The time that the episode was in the specified class; right: (NHSN-MS) The time that the episode was in the specified class
... type SΣ1..*CodeableConceptleft: Specific type of encounter; right: (NHSN-MS)(USCDI) Specific type of encounter
Binding: ?? (extensible): Valueset to describe the Encounter Type
... serviceType Σ0..1CodeableConceptSpecific type of service
Binding: ?? (example): Broad categorization of the service that is to be provided.
... priority 0..1CodeableConceptIndicates the urgency of the encounter
Binding: ?? (example): Indicates the urgency of the encounter.
... subject SΣ1..1Reference(US Core Patient Profile) {b}left: The patient or group present at the encounter; right: (NHSN-MS)(QI-Core)(USCDI) The patient or group present at the encounter
.... extension 0..*ExtensionAdditional content defined by implementations
.... reference SΣ1..1stringleft: Literal reference, Relative, internal or absolute URL; right: (NHSN-MS) Literal reference, Relative, internal or absolute URL
.... type Σ0..1uriType the reference refers to (e.g. "Patient")
Binding: ?? (extensible): Aa resource (or, for logical models, the URI of the logical model).
.... identifier Σ0..1IdentifierLogical reference, when literal reference is not known
.... display Σ0..1stringText alternative for the resource
... episodeOfCare Σ0..*Reference(EpisodeOfCare)Episode(s) of care that this encounter should be recorded against
... basedOn 0..*Reference(ServiceRequest)The ServiceRequest that initiated this encounter
... participant SΣ0..*BackboneElementleft: List of participants involved in the encounter; right: (QI-Core)(USCDI) List of participants involved in the encounter
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... type SΣ0..*CodeableConceptleft: Role of participant in encounter; right: (USCDI) Role of participant in encounter
Binding: ?? (extensible): Role of participant in encounter.
.... period S0..1Periodleft: Period of time during the encounter that the participant participated; right: (USCDI) Period of time during the encounter that the participant participated
.... individual SΣ0..1Reference(US Core Practitioner Profile)left: Persons involved in the encounter other than the patient; right: (QI-Core)(USCDI) Persons involved in the encounter other than the patient
... appointment Σ0..*Reference(Appointment)The appointment that scheduled this encounter
... period S1..1Periodleft: The start and end time of the encounter; right: (NHSN-MS)(USCDI) The start and end time of the encounter
... length 0..1DurationQuantity of time the encounter lasted (less time absent)
... reasonCode SΣ0..*CodeableConceptleft: Coded reason the encounter takes place; right: (NHSN-MS)(USCDI) Coded reason the encounter takes place
Binding: ?? (preferred): Reason why the encounter takes place.
... reasonReference SΣ0..*Reference(Condition | Procedure | Observation | ImmunizationRecommendation)left: Reason the encounter takes place (reference); right: (QI-Core)(USCDI) Reason the encounter takes place (reference)
... diagnosis SΣ0..*BackboneElementleft: The list of diagnosis relevant to this encounter; right: (NHSN-MS)The list of diagnosis relevant to this encounter
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... condition SΣ1..1Reference(Condition | Procedure) {b}left: The diagnosis or procedure relevant to the encounter; right: (NHSN-MS)The diagnosis or procedure relevant to the encounter
..... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
..... reference SΣC1..1string(NHSN-MS) Literal reference, Relative, internal or absolute URL
..... type Σ0..1uriType the reference refers to (e.g. "Patient")
Binding: ?? (extensible): Aa resource (or, for logical models, the URI of the logical model).
..... identifier Σ0..1IdentifierLogical reference, when literal reference is not known
..... display Σ0..1stringText alternative for the resource
.... use S0..1CodeableConceptleft: Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …); right: (NHSN-MS) Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …)
Binding: ?? (preferred): The type of diagnosis this condition represents.
.... rank S0..1positiveIntleft: Ranking of the diagnosis (for each role type); right: (NHSN-MS) Ranking of the diagnosis (for each role type)
... account 0..*Reference(Account)The set of accounts that may be used for billing for this Encounter
... hospitalization S0..1BackboneElementleft: Details about the admission to a healthcare service; right: (NHSN-MS)(QI-Core)(USCDI) Details about the admission to a healthcare service
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... preAdmissionIdentifier 0..1IdentifierPre-admission identifier
.... origin S0..1Reference(Location | Organization)left: The location/organization from which the patient came before admission; right: (NHSN-MS) The location/organization from which the patient came before admission
.... admitSource S0..1CodeableConceptleft: From where patient was admitted (physician referral, transfer); right: (NHSN-MS) From where patient was admitted (physician referral, transfer)
Binding: ?? (extensible): From where the patient was admitted.
.... reAdmission S0..1CodeableConceptleft: The type of hospital re-admission that has occurred (if any). If the value is absent, then this is not identified as a readmission; right: (NHSN-MS) The type of hospital re-admission that has occurred (if any). If the value is absent, then this is not identified as a readmission
Binding: ?? (preferred)
.... dietPreference S0..*CodeableConceptleft: Diet preferences reported by the patient; right: (NHSN-MS) Diet preferences reported by the patient
Binding: ?? (preferred)
.... specialCourtesy 0..*CodeableConceptSpecial courtesies (VIP, board member)
Binding: ?? (preferred): Special courtesies.
.... specialArrangement 0..*CodeableConceptWheelchair, translator, stretcher, etc.
Binding: ?? (preferred): Special arrangements.
.... destination 0..1Reference(Location | Organization)Location/organization to which the patient is discharged
.... dischargeDisposition S0..1CodeableConceptleft: Category or kind of location after discharge; right: (NHSN-MS)(QI-Core)(USCDI) Category or kind of location after discharge
Binding: ?? (extensible)
... location S1..*BackboneElementleft: List of locations where the patient has been. Used in part to discern whether the patient is Inpatient, Emergency and or Observation status.; right: (NHSN-MS) List of locations where the patient has been. Used in part to discern whether the patient is Inpatient, Emergency and or Observation status.
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... location S1..1Reference(Location) {b}left: Location the encounter takes place; right: (NHSN-MS)(QI-Core)(USCDI) Location the encounter takes place
..... extension 0..*ExtensionAdditional content defined by implementations
..... reference SΣ1..1stringleft: Literal reference, Relative, internal or absolute URL; right: (NHSN-MS) Literal reference, Relative, internal or absolute URL
..... type Σ0..1uriType the reference refers to (e.g. "Patient")
Binding: ?? (extensible): Aa resource (or, for logical models, the URI of the logical model).
..... identifier Σ0..1IdentifierLogical reference, when literal reference is not known
..... display Σ0..1stringText alternative for the resource
.... status S0..1codeleft: planned | active | reserved | completed; right: (NHSN-MS) planned | active | reserved | completed
Binding: ?? (required): The status of the location.
.... physicalType S0..1CodeableConceptleft: The physical type of the location (usually the level in the location hierachy - bed room ward etc.); right: (NHSN-MS) The physical type of the location (usually the level in the location hierachy - bed room ward etc.)
Binding: ?? (extensible)
.... period S1..1Periodleft: Time period during which the patient was present at the location; right: (NHSN-MS)(QI-Core) Time period during which the patient was present at the location
... serviceProvider S0..1Reference(Organization)left: The organization (facility) responsible for this encounter; right: (QI-Core)(USCDI) The organization (facility) responsible for this encounter
... partOf 0..1Reference(Encounter)Another Encounter this encounter is part of

doco Documentation for this format