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This variable is contained in the following files: Medicaid Enrollee Supplemental File (MESF): National Death Index (NDI) Segment
Short SAS Name
SAS Name

These fields identify the underlying causes of death as listed by the certifier of death (formatted but not audited). From 1999-2006 there were up to 8 codes, and from 2007-2013 there are up to 20 codes.


Position1: Part/line number on certificate

1 = Part I, line 1 (a)

2 = Part I, line 2 (b)

3 = Part I, line 3 (c)

4 = Part I, line 4 (d)

5 = Part I, line 5 (e)

6 = Part II 

Position 2: Sequence of condition withinpart/line Code range:1-7

Position 3-6: Condition code (ICD-10 code)Whenever there is a 4-position code, there is always an implied decimal after the 3rd position.

Position 7: Nature of Injury flag (only for ICD-9 codes)

1 = the code in positions 3-6 is a Nature of Injury ICD-9 code

0 = all other codes