By Kathy Lester, JD, MPH | AAA Healthcare Regulatory Consultant | October 9, 2015 At the end of last week, CMS posted the ICD-10 crosswalks for medical conditions for ambulance services. The documents can be found here, under the Other Guidance section at the bottom of the webpage. In creating the crosswalk files, CMS relied upon a program developed by 3M, ICD-10 CTT. The files provide comprehensive crosswalks for both primary and alternative specific codes and are intended to supplement the existing Medical Conditions List. The AAA has been working with CMS for the past year to create an official document that addresses the medical condition codes upon which some of the Medicare contractors rely for billing and auditing purposes. While we are pleased that CMS has recognized the need for a crosswalk, we are concerned that the documents posted are a literal crosswalk of the previous ICD-9 list. This document can also be found on the Ambulance Service Center webpage. This approach, which incorporates all potential ICD-10 codes, has resulted in a large number of codes being included in the crosswalk. Some of these codes are inappropriate to use because they require diagnostic skills that extend beyond the scope…

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