Remember, you won't get any more GEMs. Question: I often find myself coding ICD-9 in my head and then using a tool to "translate" to ICD-10, just because I've used ICD-9 for so long. My coworkers are giving me a hard time about this - do I really need to change? - Subscriber Answer: Yes, you really do need to change. Here are some good reasons: Mappings (GEMs) to help you convert ICD-9 to ICD-10. Do this: Instead of using GEMs and look-up tools to "translate" ICD-9 codes into ICD-10, use these as a learning device to get yourself comfortable with ICD-10. Note: To see links to the GEMs and other information, visit www.cms.gov/Medicare/Coding/ICD10/2018-ICD-10-CM-and-GEMs.html.