About the New Zealand Coding Authority

The New Zealand Coding Authority (NZCA) is a group of clinical coding experts who collaboratively and co-operatively resolve clinical coding queries and related issues on behalf of the New Zealand clinical coding sector.  This promotes the collection of consistent, complete and accurate hospitalisation data in New Zealand. 

Terms of reference

Responsibilities of NZCA

NZCA will undertake the following activities in order to achieve its purpose:

  1. Collaboratively resolve coding queries and provide clarification on coding standards and directives
  2. Ensure that ICD-10-AM and ACHI standards of definition and conventions are maintained during the resolution process
  3. Engage in open discussion and information sharing within the members’ respective organisations to assist in the query resolution process 
  4. Evaluate the impact of the query resolution on morbidity data collection
  5. Review coding query resolutions prior to distribution and publication on the Ministry’s Classification and Terminology website
  6. Review and provide feedback on published Coding Rules, classification proposals and any other clinical coding discussion documents
  7. Undertake a full review of published NZCA coding queries/responses as required
  8. Advise the Senior Analyst, Classification and Terminology on the development of new procedures, clinical trials, potential anomalies in the classification (ICD-10-AM/ACHI/ACS), New Zealand WIES and the Diagnosis Related Groups (DRGs)
  9. Advise the Senior Analyst, Classification and Terminology on any other issues related to clinical coding using ICD-10-AM/ACHI/ACS, New Zealand WIES methodology and Diagnosis Related Groups.

Responsibilities of Members

It is the responsibility of NZCA members to:

  • Meet the member requirements as detailed in the Terms of Reference
  • Communicate NZCA deliberations with their respective coding team/region or other appropriate person/s
  • Review NZCA documents and provide timely feedback to the Chairperson both prior to and outside of meetings
  • Attend meetings, or where it is not possible send an apology to Chairperson no later than one day prior to the scheduled meeting
  • Where the member is unable to attend a meeting, they are still to review documents and provide feedback.

Before the meeting:

  1. Collate and send coding queries/topics for discussion as they arise to Chairperson
  2. Investigate and research each topic for discussion prior to each meeting
  3. Consult with clinicians and/or subject matter experts as required
  4. Receive, filter and provide feedback from their coding team/region
  5. Provide feedback to Chairperson within specified deadlines
  6. Confirm meeting attendance
  7. Seek approval form Chairperson for an observer to attend a meeting.

During the meeting:

  1. Represent their coding team/region
  2. Actively participate in discussions and resolution process.

After meeting:

  1. Review and confirm coding queries/responses for distribution
  2. Provide feedback to Chairperson within specified deadlines
  3. Complete action points arising from meetings within specified deadlines.

If a member does not regularly meet their responsibilities as detailed in the Terms of Reference it is at the Chairperson’s discretion to terminate their membership following consultation with their manager. The clinical coding team/region the member represents will then be given the opportunity to replace the member with another person who meets the membership criteria.  

Members for the term 1 July 2022 to 30 June 2024

Region & Group Member

Te Whatu Ora - Health New Zealand District 

Tracy Thompson (Chair) National Collections and Reporting
Northern Region
Jayasree Kasha Waitematā 
Andrew Wooding Auckland 
Verena Nadlang Counties Manukau
Te Manawa Taki (Midlands) Region
Moira Williams Waikato 
Central Region
Chris Rodley Hawke's Bay
Shuer Zeng Hutt Valley 
Roxana Vasiu Capital & Coast 
Te Waipounamu (Southern) Region
Janelle Fynn Canterbury 
Donna Holley Southern 


NZCA meetings will be scheduled every two months depending on the number of queries/topics on the agenda at any given time.  Meetings will be held by either Zoom, Microsoft Teams or teleconference with face to face meetings arranged as required. Additional meetings may be required to discuss IHPA Coding Rules. The required quorum for the meetings will be half the members plus one. 

The meeting schedule for the next 12 months (1 July 2022 to 30 June 2023) is:

  1. Thursday 4 August 2022
  2. Thursday 22 September 2022 
  3. Thursday 17 November 2022
  4. Tuesday 20 December 2022 (to discuss IHPA Coding Rules) 
  5. Thursday 23 March 2023
  6. Thursday 11 May 2023
  7. Thursday 22 June 2023.

The meeting schedule is subject to change depending on member and Chairperson availability.  Additional ad hoc meetings may also be called by the Chairperson on an as required basis. 

To contact the NZCA Chairperson please email the coding helpdesk: [email protected]


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