Clarity LOS Calculation with DATEDIFF: Admit-to-Discharge Logic for Epic Analysts A Clarity LOS calculation looks like one line of SQL: DATEDIFF between admit and discharge. It is also the most common reason two Epic reports show different length-of-stay numbers for the same patients. The function counts calendar boundaries, not elapsed days, and the definition you

Epic Clarity PAT_ENC Table: Columns, Joins, and Query Patterns for Analysts The Epic Clarity PAT_ENC table holds one row per patient encounter contact, and almost every visit-level report you will validate starts there. It also hides the most common reconciliation trap in Epic reporting: a row in PAT_ENC is not always a visit. This article