I would have folks read the attached Medlearn article from CMS
https://www.cms.gov/Medicare/Coding/ICD10/downloads/GEMs-CrosswalksBasicFAQ.pdf
and also: http://library.ahima.org/xpedio/groups/public/documents/ahima/bok1_050190.hcsp?dDocName=bok1_050190
"The GEMs are more complex than a simple one-to-one crosswalk. They reflect the relative complexity of the code sets clearly so that applications that use them can be managed effectively.......... The GEMs are not intended to be a substitute for using ICD-9-CM and ICD-10-CM/PCS directly. The code sets should be used to look up the applicable codes if the health record or the clinical terms describing a diagnosis or procedure are available."
Here are some more free resources:
https://www.aapc.com/icd-10/codes/
AAPC CDI training:
https://www.aapc.com/icd-10/icd-10-physician-documentation.aspx
AHIMA:
http://www.ahima.org/education/onlineed/Programs/cdi
And then the for ICD-10 training and resources for free and some will cost (as chatted about this am):
WHO -
http://www.who.int/classifications/icd/en/ FREE TRAINING scroll down to the training section – here you can also access FREE ICD-10 codes without paying a dime!
CDC:
http://www.cdc.gov/nchs/icd/icd10cm.htm scroll to middle for GEM’s etc. etc.
CMS resources:
https://www.cms.gov/Medicare/Coding/ICD10/index.html?redirect=/ICD10
HIMSS playbook:
http://www.himss.org/library/icd-10/playbook?navItemNumber=13480
I would strongly recommend that folk work with their providers on their documentation as their documentation requirements increase and require far more specificity to appropriately code.
One has to look at documentation and then code - where there may have only been one ICD-9 code before, there will be far more specificity and a direct ICD-9 to 10 GEM may not be your answer only a starting point. Diabetes coding, fractures etc. and even trimesters / weeks in pregnancy is all different and GEM will not suffice.
