ArcGIS Indoors for AutoCAD is an extension at ArcGIS for AutoCAD Version 430 that helps AutoCAD users detect and locate hard-to-find conditions in CAD drawings including: Unclosed unit boundaries, self-intersecting polylines, missing unit names and use type text, non-unique unit names, and non-standard use type values. 

More information about ArcGIS Indoors: https://www.esri.com/en-us/arcgis/products/arcgis-indoors/overview