Primary OPCS Code

Change History
DSCN 2023 / 08	The Office of Population Censuses and Surveys Classification of Interventions and Procedures (OPCS) Version 4.10
DSCN 2022 / 06	Main Specialty (Consultant) (AMD)
DCSN 2020 / 04	The Office of Population Censuses and Surveys Classification of Interventions and Procedures (OPCS) Version 4.9
DSCN 2019 / 09	National Cancer Data Standards for Wales – Core
DSCN 2017 / 02	Introduction of OPCS 4.8
DSCN 2015 / 03	Radiotherapy Data Set
DDCN 2014 / 06	OPCS Version Release History
DDCN 2013 / 17	Appendix H – OPCS Reference Codes List
DSCN 2011 / 02	Introduction of OPCS 4.6
DSCN (2009) 04 (W)	Implementation of OPCS 4.5
DSCN (2007) 14 (W)	Introduction of OPCS 4.4
DSCN (2006) 01 (W)	To introduce Independent Nurse Activity in the Outpatient ds + QS1

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
OP ds	1^st April 1999
RTDS	1^st April 2014
National Cancer Ds - Core

The primary intervention / procedure performed on a patient at a particular time, during the relevant episode, as determined by the responsible Consultant or Independent Nurse.

Different versions of OPCS-4 apply dependant on the episode end date (Admitted Patient Care data set) or attendance date (outpatient data set) of the submitted record. The valid versions of OPCS-4 allowable in Wales are as follows:

OPCS Version	Valid From	Valid To
OPCS 4.2		31^st March 2006
OPCS 4.3	1^st April 2006	30^th September 2007
OPCS 4.4	1^st October 2007	31^st March 2009
OPCS 4.5	1^st April 2009	31^stMarch 2011
OPCS 4.6	1^st April 2011	31^st March 2012
OPCS 4.7	1^st April 2014	31^st March 2017
OPCS 4.8	1^st April 2017	31^st March 2020
OPCS 4.9	1^st April 2020	31^st March 2023
OPCS 4.10	1^st April 2023

Format: 4 character alpha-numeric

Value	Meaning
ANNN	See OPCS Classification of Interventions and Procedures, Fourth Revision (Version 4).
Spaces	No procedure performed or episode not coded.

Listing of all current OPCS codes and descriptions can be found from the Reference Data site via the following link:WRDS (wales.nhs.uk) (NHS Wales Users Only)