Episode level implementation of theatres-related IP functional areas

[yiwen-h]

Agreed methodology

Agreed in meeting with @tomjemmett / @yiwen-h / @paulseamer 10/09/2026

• lookup if procedure code is in theatre times dataset
• if yes, it probably happened in theatre
• we allocate this to the functional area groupings relating to theatres
• use the assumption from the assumptions csv for the procedure time

If a procedure code was not in the theatre times dataset we assume it did not happen in a theatre

We are looking at the procedure codes that happen in each episode. small risk of double counting?

Advantages of switching to episode level: if a patient has different procedures in different episodes we will capture these

This has been implemented in The-Strategy-Unit/nhp_data#284

Next steps

Where/how do we record this?

[yiwen-h]

This agreed methodology should be recorded somewhere - where @paulseamer ?