Subsidiary ICD Diagnostic Code

Change History
DSCN 2016 / 05	The International Classification of Diseases Tenth Revision (ICD-10) 5th Edition

This data item is / was included in the following data sets / collections between the dates shown:

Data Set / Collection	Valid From	Valid To
APC ds99	1^st April 1999	27^th October 2020
OP ds	1^st April 1999	20^th October 2020

This is the subsidiary diagnosis code. A subsidiary field can be used for the recording of asterisk codes (when linked to the primary dagger code) or for external cause codes when linked to primary diagnosis. Any other secondary diagnosis is entered into the 1st, 2nd, 3rd secondary fields.

It is a classification of diseases, injuries and causes of death according to the 10th Revision of International Statistical Classification of Diseases and Health Related Problems (ICD10).

ICD Version	Valid From	Valid To
ICD-9		30^th September 1994
ICD-10	1^st August 1994	30^th June 2012
ICD-10 4^th Edition	1^st July 2012	31^st March 2016
ICD-10 5^th Edition	1^st April 2016

Format: 6 character alpha-numeric

Value	Meaning
ANNXXX	ICD10 code (or compatible code)
Spaces	Not applicable
Character position	Valid Values
1	A-Z
2-3	00-99
4	0-9, or 'X' if absent
5	0-9, or space if absent
6	A, D or space