CX 21 20 Exclusion – Professional Services

An Insurance Services Office (ISO) standard form. It excludes excess liability for injury or damage arising out of rendering or failing to render any professional service, including legal, engineering, medical, cosmetic, fitness, pharmacy and law enforcement services.

1. 06 26 edition

   Jun 2026, compared with 04 13Latest edition

   • The exclusion now applies to injury or damage arising out of professional services, instead of injury or damage due to them.

     04 13

     “not apply to "injury or damage" due to the rendering of or failure to render any professional service”

     06 26

     “not apply to "injury or damage" arising out of the rendering of or failure to render any professional service”

Where filings record what this form replaced, they name earlier edition 04 13. Only some filings record replacements.

• Edition in use: in the past 12 months, 3 companies filed the 04 13 edition and 2 companies filed 06 26.
• CX 21 14 (Exclusion – Exterior Insulation And Finish Systems) is filed alongside it most often, in 63 of the same filings (95%).

Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Aug 2026, excluding withdrawn and rejected filings. One filing can cover several affiliated companies.

• WR Berkley Corporation GroupFiles its own version: IDCU 9006 Exclusion Professional Services (26 states)
• Fairfax Financial GroupFiles its own version: GL 0063400 Exclusion - Professional Services (37 states)

• CX 21 14Exclusion – Exterior Insulation And Finish Systems63 filings
• CX 21 10Limitation Of Coverage To Designated Premises, Project Or Operation62 filings
• CX 21 79Cannabis Exclusion57 filings
• CX 21 80Cannabis Exclusion With Hemp Exception57 filings
• CX 21 81Cannabis Exclusion With Hemp And Lessors Risk Exceptions57 filings
• CU 00 01Commercial Liability Umbrella Coverage Form45 filings
• CU 21 15Exclusion – Financial Services45 filings
• CU 22 94Professional Liability Exclusion – Computer, Telecommunication, Electronic Data Or Internet Services (formerly titled Professional Liability Exclusion – Electronic Data Processing Services And Computer Consulting Or Programming Services)45 filings
• CU 24 13Amendment of Personal and Advertising Injury Definition45 filings
• CU 21 42Exclusion – Exterior Insulation And Finish Systems44 filings