Table 2:

Hashes generated by DCIFIRHD application for an individual patient

Hash Name	Hash Type	Variables Hashed
FNLNDOB*	Normal hash	First name + last name + date of birth
LNFNDOB	Normal hash	Last name + first name + date of birth
FNLNBOD	Normal hash	First name + last name + date of birth (month and day switched)
FNSSN*	Normal hash	First name + SSN
LNSSN*	Normal hash	Last name + SSN
DOBSSN*	Normal hash	Date of birth + SSN
SSN*	Normal hash	SSN
3LFNLNDOB*	Only first three letters of first and last name used in hash	First name + last name + date of birth
3LLNFNDOB*	Only first three letters of first and last name used in hash	Last name + first name + date of birth
3LFNLNBOD	Only first three letters of first and last name used in hash	First name + last name + date of birth (month and day switched)
3LFNSSN	Only first three letters of first and last name used in hash	First name + SSN
3LLNSSN*	Only first three letters of first and last name used in hash	Last name + SSN
SXFNLNDOB*	Soundex	First name + last name + date of birth
SXLNFNDOB	Soundex	Last name + first name + date of birth
SXFNLNBOD	Soundex	First name + last name + date of birth (month and day switched)
SXFNSSN*	Soundex	First name + SSN
SXLNSSN*	Soundex	Last name + SSN

*Hashes used optimized match.

SSN: Social Security Number.