Hospital Revenue Cycle Management Path · Mission 24 of 25Master

Data quality audit — orphan claims + NULL denials in one report

UNION ALL on multiple anti-join / NULL-detection patterns to assemble a single audit-finding report. Master tier exercises the production data-engineering pattern: instead of running two separate audits and pasting the results, produce one report with an `audit_finding` label column that distinguishes finding types.

The Brief

You'll practice

UNION ALLLEFT JOIN anti-joinMulti-finding audit