LS variable metadata
Variable: UCDE3DIM
Table: IDFI
Short description: ICD9 first three digits of underlying cause of death (deaths 1979 onwards)
Full description:  
Coding notes: Three-digit final underlying cause of death code, 001-999, Spaces
1979 onwards:
ICD9 codes 001-799, or ICD9' E'codes 800-999 See Events Appendix 4
Units of measurement:  
Source: Draft death entry (Form 310) Question 8
Former name of variable: UCADE3DDIM
Derived: N
Derivation: Not available
Date range:  
Keyword: Mortality
Comparable variables for other individuals:  
Comparable variables for other times:  
Restricted: N
Data type: Text
Length of field: 3
Reference 1: See LS Technical Volume (Hattersley and Creeser, 1995), page 343 (death registration draft entry form), page 25 and page 96 (general details), pp. 99-104 (comparability), pp. 141-145 (data quality).
Reference 2: Events Appendix 4