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Episode of care—additional diagnosis, code (ICD-10-AM 12th edn) ANN{.N[N]}

Identifying and definitional attributes

Metadata item type:Help on this termData Element
Short name:Help on this termAdditional diagnosis
Synonymous names:Help on this termAdditional diagnoses
METeOR identifier:Help on this term746667
Registration status:Help on this termHealth, Standardisation pending 20/09/2021
Definition:Help on this term

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, as represented by a code.

Data Element Concept:Episode of care—additional diagnosis

Value domain attributes

Representational attributes

Classification scheme:International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification 12th edition
Representation class:Help on this termCode
Data type:Help on this termString
Format:Help on this termANN{.N[N]}
Maximum character length:Help on this term6

Source and reference attributes

Origin:Help on this term

Independent Hospital Pricing Authority

Data element attributes

Collection and usage attributes

Guide for use:Help on this term

Record each additional diagnosis relevant to the episode of care in accordance with the Australian Coding Standards (IHPA, 2022).

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.

An additional diagnosis can include a disease, condition, injury, poisoning, sign, symptom, abnormal finding, complaint, or other factor influencing health status.

Additional diagnoses give information on the conditions that are significant in terms of treatment required, investigations needed and resources used during the episode of care.

Collection methods:Help on this term

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 or attendance at a health-care establishment. An additional diagnosis is classified from, and must be substantiated by, clinical documentation.

Comments:Help on this term

Additional diagnoses are conditions that significantly affect patient management in an episode of care in terms of requiring any of the following:

  • commencement, alteration or adjustment of therapeutic treatment
  • diagnostic interventions
  • increased clinical care.

These criteria are not mutually exclusive. Conditions must meet at least one of these criteria and be evidenced by clinical documentation. Further information on conditions which meet these criteria can be found in the Australian Coding Standards (IHPA, 2022) under ACS 0002 Additional diagnoses.

Certain chronic conditions that do not meet the above criteria may be recorded as an additional diagnosis if they meet criteria in the Australian Coding Standards.

Source and reference attributes

Origin:Help on this term

Independent Hospital Pricing Authority

Reference documents:Help on this term

IHPA (Independent Hospital Pricing Authority) 2022. Australian Coding Standards Twelfth Edition. Sydney: IHPA.

Relational attributes

Related metadata references:Help on this term

Supersedes Episode of care—additional diagnosis, code (ICD-10-AM 11th edn) ANN{.N[N]} Health, Standard 12/12/2018, Tasmanian Health, Endorsed 08/04/2019

See also Episode of care—principal diagnosis, code (ICD-10-AM 12th edn) ANN{.N[N]} Health, Standardisation pending 20/09/2021

Implementation in Data Set Specifications:Help on this term
All attributes +

Activity based funding: Mental health care NBEDS 2022–23 Health, Standardisation pending 22/10/2021

DSS specific attributes +

Admitted patient care NMDS 2022–23 Health, Standardisation pending 20/09/2021

DSS specific attributes +

Residential mental health care NMDS 2022–23 Health, Standardisation pending 22/10/2021

DSS specific attributes +
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