MIMIC-IV itemid to LOINC mapping availability

[shambhabchaki]

Hello,

Is there an official or recommended mapping between MIMIC-IV itemids and LOINC codes?

I found discussions suggesting conversion from MIMIC-IV itemids → MIMIC-III ITEMIDs → LOINC. However, this multi-step mapping seems potentially error-prone, especially for clinical predictive modeling where semantic accuracy is important.

Could you please clarify:

Whether a direct MIMIC-IV → LOINC mapping exists?

If not, what is the recommended best practice?

Thank you for your guidance.