Q&A: Applying CMS’ ICD-10 guidance to medical necessity

Article Overview

This article addresses a CMS question-and-answer topic about ICD-10-CM specificity and how that guidance is applied in the context of medical necessity. It is aimed at coders, revenue integrity staff, and billing professionals who need to understand the scope of the guidance, the settings it applies to, and how coverage policies affect diagnosis reporting. The discussion also situates the topic within broader CMS coverage and compliance considerations.