Intensive Care Medicine

, Volume 29, Issue 2, pp 271–277 | Cite as

The ANZPIC Registry diagnostic codes: a system for coding reasons for admitting children to intensive care

  • Anthony Slater
  • Frank Shann
  • Julie McEniery
  • for the ANZICS Paediatric Study Group
Neonatal and Pediatric Intensive Care



To describe the uniform diagnostic coding system used in Australia and New Zealand to code reasons for admitting children to intensive care, and to highlight the benefits of a uniform approach.


International, multicentre, observational study.


A registry of children admitted to intensive care in Australia and New Zealand.


The records of 19,249 children admitted to intensive care between 1997 and 2000 were analysed.

Measurements and results

The system was designed empirically using expert consensus. The principal diagnosis or main reason for intensive care admission and up to five associated diagnoses are coded. The system has four levels of coding: non-operative or post-procedural admission, diagnostic group, specific condition, and for injury and infection the aetiological factor. The main reason for intensive care admission was coded in all patient records, however, for 11.1% of records the code was limited to diagnostic group with the specific condition coded as "other diagnosis". Two or more diagnoses were coded in 61% of records. The most frequent reason for admission was asthma.


The major advantage of the system is that units in the region use the same method of coding. A uniform international approach to coding reasons for admitting children to intensive care is needed.


Paediatric Intensive care Diagnosis Diagnosis-related groups 



We thank the many nurses, physicians, research officers and secretaries who collected, entered and cleaned the data. We thank Gale Pearson and Reinoud Gemke for their comments on the system from an international perspective. We gratefully acknowledge the support provided by the Australian and New Zealand Intensive Care Society. Copyright to the coding system is held by the ANZPIC Registry; the codes may be copied and used free of charge with appropriate acknowledgment. The ANZICS Paediatric Study Group includes: A. O'Connell, A. Morrison, Children's Hospital at Westmead; B. Lister, P Sargent, Mater Misericordiae Children's Hospital, Brisbane; R. Justo, E. Janes, J. Johnson, Prince Charles' Hospital, Brisbane; A. Duncan, Princess Margaret Hospital, Perth; J. McEniery, Royal Children's Hospital, Brisbane; F. Shann, A. Taylor, Royal Children's Hospital, Melbourne; B. Duffy, J. Young, Sydney Children's Hospital; A. Slater, L. Norton, Women's and Children's Hospital, Adelaide; E. Segedin, D. Buckley, Starship Hospital, Auckland; N. Barnes, Waikato Health Service, Hamilton.


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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Anthony Slater
    • 1
  • Frank Shann
    • 2
  • Julie McEniery
    • 3
  • for the ANZICS Paediatric Study Group
  1. 1.Women's and Children's HospitalNorth AdelaideAustralia
  2. 2.Royal Children's HospitalParkvilleAustralia
  3. 3.Royal Children's HospitalHerstonAustralia

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