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Prescribed Services Operational (PSO) Tool 2025/26 - updated

The Prescribed Specialised Services 2026/27 Operational Tool has been postponed. This has resulted in an updated Prescribed Specialised Services 2025/26 Operational Tool v2 being produced by the National Casemix Office.

The Prescribed Services 2026/27 Operational (PSO) Tool was postponed as a result of financial volatility concerns given the magnitude of change with the update to OPCS 4.11 and National Coding Standards.

NHS England Specialised Commissioning Team have however, requested that the Identification Rules be updated for use in 2026/27. These changes will be implemented in SUS and have resulted in an update to the PSO Tool 2025/26

The updated PSO 2025/26 Tool v2 has been produced by the National Casemix Office which incorporates these changes.

Please note that this Tool will need to be used with the Pricing Mapping TOCE as it has not been updated to accommodate OPCS 4.11 and changes to coding standards.


Download the PSO Tool - updated

Download the Prescribed Specialised Services Operational Tool 2025/26 v2 application

This tool implements the NHS England Identification Rules that have been updated from the PSS 2025/26 Operational Tool.

The relevant documentation suite has also been updated (see below).

Previous version

Download the previous Prescribed Specialised Services Operational Tool 2025/26 application.

Users are strongly advised to read the Summary of Changes document that is available as part of this release.

If you have any questions or issues about the functionality of the PSO Tool 2025/26, contact [email protected].

For enquires about the Identification Rule derivation, contact NHS England at: [email protected].


Download documents

PSO 2025/26 v2 Tool Summary of Changes - updated version - this document provides the list of changes to both the product and Identification Rules from the last release.

PSO 2025/26 Tool Prescribed Services Guide to Identification Rules v2 - updated version - this workbook provides guidance on understanding the details of the code sets and associated logic used in the derivation of the PS flags, as generated by the product.

Previous version

PSO 2025/26 Tool Summary of Changes - this document provides the list of changes to both the product and Identification Rules from the last release.

PSO 2025/26 Tool User Manual - this document provides full instructions on preparing and processing data using the Tool.

PSO 2025/26 Tool Prescribed Services Guide to Identification Rules - this workbook provides guidance on understanding the details of the code sets and associated logic used in the derivation of the PS flags, as generated by the product. 

PSO 2025/26 Operational Tool sample data and expected results - the sample data folder contains both Admitted Patient Care (APC) and Non-Admitted Consultations (NAC) data for testing purposes. It also includes the expected results in files, as generated by the Tool. 

Last edited: 22 May 2026 2:45 pm