Source File URL: www.cms.gov/Medicare/Coding/ICD9ProviderDiagnosticCodes/Downloads/cmsv30_master_descriptions.zip
Source Page: https://www.cms.gov/Medicare/Coding/ICD9ProviderDiagnosticCodes/codes.html
NBER URL: http://www.nber.org/data/icd9-cm-diagnosis-and-procedure-code-descriptions.html
icd9sg2013 set up by Jean Roth , jroth@nber.org , 27 Apr 2017