[WWW - 2021.12.16]
Identifying and Definitional Attributes
QH 040245
Metadata Item Type
Data Element
Data Element Type
Data Element
Approval Status
Approval Type
Approving Authority
Effective From
Effective To
A condition or complaint either coexisting with the principal diagnosis or arising during the episode of admitted patient care, episode of residential care  or attendance at a health care establishment.
Additional diagnoses give information on factors which result in increased length of stay, more intensive treatment or the use of greater resources. They are required for casemix analyses relating to the severity of illness and for correct classification of patients into Australian National Diagnosis Related Groups.
Short Name
Additional diagnoses
Name in Other Contexts
Representational Attributes
Representation Class
Minimum Character Length
Maximum Character Length
Permissible Values
Valid ICD-10-AM code
Supplementary Values
Collection and Usage Attributes
Guide for Use
Additional diagnoses should be interpreted as additional conditions that affect patient care in terms of requiring any of the following:

- Therapeutic treatment
- Diagnostic procedures
- Increased nursing care and or monitoring

Record each additional diagnosis relevant to the episode of care in accordance with the ICD-10-AM Australian Coding Standards. Generally, external cause, place of occurrence and activity codes will be included in the string of additional diagnosis codes. In some data collections these codes may also be copied into specific fields.
The diagnosis can include a disease, condition, injury, poisoning, sign, symptom, abnormal finding, complaint, or other factor influencing health status.
Verification Rules
Collection Methods
An additional diagnosis should be recorded and coded where appropriate upon separation of an episode of admitted patient care or the end of an episode of residential care. The additional diagnosis is derived from and must be substantiated by clinical documentation.
Additional diagnoses are significant for the allocation of Australian Refined Diagnosis Related Groups. The allocation of patient to major problem or complication and co-morbidity Diagnosis Related Groups is made on the basis of the presence of certain specified additional diagnoses. Additional diagnoses should be recorded when relevant to the patient's episode of care and not restricted by the number of fields on the morbidity form or computer screen.
External cause codes, although not diagnosis of condition codes, should be sequenced together with the additional diagnosis codes so that meaning is given to the data for use in injury surveillance.
Relational Attributes
Related Metadata References
Relates to Diagnosis code type QH 040099 Version 2
Relates to Principal diagnosis QH 040244 Version 1
Supersedes Additional diagnoses QH 040245 Version 2
Implementation in Metadata Sets


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ViewMetadata Item TypeMetadata Set TypeNameAscendingIdentifier & VersionObligationEffective FromEffective To
Information AssetData CollectionQueensland Hospital Admitted Patient Data Collection (QHAPDC)QH 020001 Version 101-Jul-200530-Jun-2013
Data Quality Declaration
Source and Reference Attributes
Source Organisation
Source Document