Free essys, homework help, flashcards, research papers, book report, term papers, history, science, politics Quick Reference Chart: Descriptors of G-codes and Modifiers for Therapy Functional Reporting MLN Educational Tool. Page 7 of 7 ICN MLN908924 March 2019. SEVERITY/COMPLEXITY MODIFIERS. For each nonpayable functional G-code, one of the modifiers listed below must be used to report the severity/complexity for that functional limitation.

Today let’s go back to the G-code basics. What’s a G-code? Effective July 1, 2013, CMS will require therapists to complete functional limitation reporting through the use of new G-codes and corresponding severity modifiers for all eligible Medicare patients at the initial examination, at minimum every ten visit (or progress note), and at ...