The Electronic Clinical Quality Measure (eCQM) Known Issues tracker provides implementation information for eCQMs with known technical issues for which a solution is under development but not yet available in a published eCQM specification. This includes discrepancies between eCQM narrative and logic, value sets, and/or technical, standard, or logic-related issues for eligible hospital/critical access hospital (EH/CAH), outpatient quality reporting (OQR) and eligible clinician (EC) eCQMs.