_dta:
  1.  icd9dxlong2012 set up by Jean Roth , jroth@nber.org , 27 Apr 2017
  2.  NBER URL: http://www.nber.org/data/icd9-cm-diagnosis-and-procedure-code-descriptions.html
  3.  Source Page: https://www.cms.gov/Medicare/Coding/ICD9ProviderDiagnosticCodes/codes.html
  4.  Source File URL: www.cms.gov/Medicare/Coding/ICD9ProviderDiagnosticCodes/Downloads/cmsv29_master_descriptions.zip
  5.  icd9dxshort2012 set up by Jean Roth , jroth@nber.org , 27 Apr 2017

  obs:        14,567                          
 vars:             4                          27 Apr 2017 18:35
 size:     3,394,111                          (_dta has notes)
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              storage   display    value
variable name   type    format     label      variable label
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dgns_cd         str5    %9s                   ICD9 Diagnosis Code
shortdesc       str223  %223s                 Short Description
version         byte    %9.0g                 ICD-9-CM Diagnosis and Procedure Codes
fyear           float   %9.0g                 Fiscal Year
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Sorted by: dgns_cd