opened on:  14 Mar 2018, 19:23:57

_dta:
  1.  by Jean Roth , jroth@nber.org , 24 Sep 2016
  2.  Source URL: http://www.dartmouthatlas.org/tools/downloads.aspx
  3.  Source Workbook: PartB_DxCodes_Age0to99_2004_2014.xlsx
  4.  Source Worksheet: Table
  5.  The Carrier file (also known as the Physician/Supplier Part B claims
      file) contains
  6.  final action fee-for-service claims  submitted on a CMS-1500 claim form.
  7.  Most of the claims are from non-institutional providers, such
      as physicians,
  8.  physician assistants, clinical social workers, nurse practitioners. 
  9.  Claims for other providers, such as free-standing facilities are
      also found in the Carrier file. 
 10.  Examples include independent clinical laboratories, ambulance providers,
      and free-standing ambulatory surgical centers.
 11.  Part B Data Dictionary
      https://www.resdac.org/cms-data/files/carrier-rif/data-documentation

dgns_cd:
  1.  Definition of Part B ICD-9 Diagnosis Code: The diagnosis code identifying
      the diagnosis,
  2.  condition, problem or other reason for the admission/encounter/visit
  3.  shown in the medical record to be chiefly responsible for the services
      provided.

  obs:       190,773                          
 vars:             7                          24 Sep 2016 03:16
 size:    13,544,883                          (_dta has notes)
-------------------------------------------------------------------------------
              storage   display    value
variable name   type    format     label      variable label
-------------------------------------------------------------------------------
dgns_cd         str5    %9s                 * ICD-9 Diagnosis Code
year            int     %9.0g                 Year
label           str48   %48s                  ICD-9 Diagnosis Code Labels
pri_nrecs       long    %10.0g                # of records with this primary
                                                diagnosis code during the year
pri_nppl_any    long    %10.0g                # of people with this primary
                                                diagnosis code during the year
sec_nrecs       long    %10.0g                # of records with this secondary
                                                diagnosis code during the year
sec_nppl_any    long    %10.0g                # of people with this secondary
                                                diagnosis code during the year
                                            * indicated variables have notes
-------------------------------------------------------------------------------
Sorted by: dgns_cd  year