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This page list all the queries that Child Health Project team wants to discuss with CHWG and decide a path forward. 

Generic Query

Serial Number

Query

Date and Decision

Members Present

G1

At this moment NCDHC uses only a handful of elements from the default FHIR profiles. This gives an option to the implementer to supply more data than originally supported by NCDHC. We want to decide whether we should restrict the data set or leave as it is with some control.

I think we have two options on this:

Option 1: Remove all non-supported elements from the profile. This may introduce strict boundary on the profile and loose re-usability.

Option 2: Use must support flag to indicate what is supported by NCDHC. If the source system supplies more data, then NCDHC will not remove them but will not process them or take any ownership of that additional data. They will remain as-is in the supplied resources. 

 28-07: It was decided to continue with Must Support flag with providing adequate details to the implementer about the meaning of the flag.

Status: Closed

 G2

 NCDHC uses International Bundle resource to represent FHIR document and search result. Any suggestion to use project specific Bundle profile? if yes, then how would it look like and advantage?

 11-08: The group suggested that a Bundle Profile could be useful.This will give a better guidance to the implementer about what to send/expect in a FHIR document supported by NCDHC. Shovan to try modeling a Bundle profile and share with the CHWG in the next meeting

Resource: Observation

Serial Number

Description

Resource Path

NCDHC Approach

Date and Decision

Members Present

O1

Shall we make effective[x] as mandatory in the profile when there any value[X] provided?

in what situation effective[x] can not be provided (other than historical observations which we are not dealing with in NCDHC)?

Observation.effective[x]

Add Invariant to check the existence of effective[x] if the absentReason is not provided

28-07: Shovan to talk to NCDHC CI team for more clinical guidance.


Status: Open

O2

Use of component or hasMember along with dataAbsentReason

Observation.absentReason

Do not allow dataAbsentReason along with component and/or hasMember in the same Observation instance.

  28-07: Change Invariant to ask for dataAbsentReason only when neither of value[x], component, hasMember or interpretation is present in the Observation but the observation is sent.

Status: Closed

03

Use closed slice vs open slice in coding

Observation.code.coding

NCDHC recommends to use open slice. The sender SHALL send the code as required in the Observation. However they can send additional codes (local codes). The Hub doesn't guarantee about processing the additional code but will not reject the request.

  28-07: Proposal accepted by the group.

Status: Closed

O4

What is recommended to use for Observation.category

Observation.category

NCDHC to use ‘procedure’ or ‘exam’ as category (as applicable)

 28-07:  Not to put Must Support for category. If the implementer sends it, the it stays with the Observation.

Status: Closed

O5

There are some Observation profiles under NCDHC which points to http://build.fhir.org/ig/hl7au/au-fhir-childhealth/ValueSet-ncdhc-observation-completion-status-1.html just to record if the Procedure was performed or not.

The main objective of these types of Observations are to capture the Observation.interpretation and comments (if any)

The ValueSet includes the following values:

443938003 - Procedure carried out on subject

416237000 - Procedure not done

439495000 - Counselling declined

Example: http://build.fhir.org/ig/hl7au/au-fhir-childhealth/StructureDefinition-ncdhc-observation-anus.html

Observation.value[x]

Proposal: Remove this valueset and implement the following changes

Observation.value[x] make it valueBoolean to allow true/false

move “Procedure not done” and “Counselling declined” as part of Observation.dataAbsentReason

 Ongoing discussion with Internal Terminology SME.


Status: Open

 

O6

Use of au-practitionerrole to record “Examiner” in Observation instead of current implementation where we are usingau-practitioner

Observation.performer

Use of au-practitionerrole to record “Examiner” in Observation. This provide the option to record the Examiner and associated Organisation along with practitioner's role.

 28-07: Proposal accepted by the group

Status: Closed

Resource: Composition & FHIR® Document

Serial Number

Description

Resource Path

NCDHC Approach

Date and Decision

Members Present

CM11

Composition section: Use entry slicing or list of profile?


Composition.section.entryAt this moment Collaborative profiles are sliced with entry slicing due to lack of tooling support.Any alternative option implemented and benefit realized would be helpful to change the approach11-08: CHWG suggested to try alternative option and remove profile=$this.resolve(). This method is non good for fhir validationperformance reason. Shovan to try options and keep the group posted
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