With the start of 2012, about 50% of all adults —117 million individuals—had chronic health conditions. One out of every four had at least two chronic health conditions.
In 2017 The Centers for Medicare & Medicaid Services (CMS), acknowledged that there are both non-complex and complex Chronic Care Management services provided to patients. Thus, CMS added two new codes for what they now call Complex CCM Services. Moreover, they included new CPT codes for the initiating visit.