Were the current Concepts codes compatible with MIMIC-IV V3.0?

Prerequisites

• Put an X between the brackets on this line if you have done all of the following:
  • Checked the online documentation: https://mimic.mit.edu/
  • Checked that your issue isn't already addressed: https://github.com/MIT-LCP/mimic-code/issues/1770

Description

I've noticed that MIMIC-IV V3.0 has been released, and there has been discussion about installation codes. However, I've found that the item_id in MIMIC-IV V3.0 has significantly changed compared to MIMIC-IV V2.0 and V2.2. For example, the item_id for lymphocyte count is not entirely consistent between MIMIC-IV V3.0 and MIMIC-IV V2.2 (Figure was as shown below, in MIMIC-IV V2.2, the item_id for lymphocyte percentage were 51333, 52769, and 53152, while in MIMIC-IV V3.0, they were 51333, 52769, and 53132). This means that the current official Concepts codes might produce errors in accuracy when applied to MIMIC-IV V3.0 due to these item_id changes, even though the codes had no running errors.

Is it necessary to revise all the Concepts code involving the relevant item_id when installing Concepts for MIMIC-IV V3.0, or can the existing Concepts codes be used directly without revised? I would appreciate clarification on this matter. Thank you! @alistairewj

Start by reviewing the MIMIC-IV documentation and issue #1770, then compare the cited item_id values between MIMIC-IV V2.2 and V3.0. Inspect the current Concepts code that uses those identifiers. Done means documenting whether the existing codes remain compatible or identifying the Concepts code changes required for V3.0.