Emsquared
Isn't my CHI number the equivalent of my NHS number in Scotland? What the hell is my NHS number? Not my NI number? #Scotland #NHS #Confused
Apr 24 at 1:06pmWeb
Show threadMcCovicanApr 24
@emsquared CHI is the Scottish equiv of the NHS number, yeah – we don't have an actual "NHS Number" here.
CHI is DoB-based, plus 4 numbers (and beyond the DoB inclusion, not related to your NI at all):
DDMMYY{random(2);}{even_odd($gender);}{checkbit(integer);}
I think the English/Welsh/IoM NHS number is "fully" random instead (no idea how it's generated, but IIRC it doesn't include DoB).
Show threadBob ThomsonApr 24
@emsquared learned about and then forgot about those when I did some work for NHS Services Scotland. Literally key as well as chi to a lot of things.
Show threadEmsquaredApr 24
@bobthomson70 I think the NHS number is UK wide but not quoted in NHS Scotland correspondence unless accessing the NHS across the UK so will probs find it on my old England correspondence.
Show threadBob ThomsonApr 24
@emsquared no doubt some tangled interface deep in NHS Scotland that maps the NHS Numbers of folk born in England to CHI ones. All tech is ultimately held together with such elastic bands behind the scenes :)
Show threadIan TurtonApr 24
@bobthomson70 @emsquared your chi is just your date of birth and 4 other numbers that encode your gender and a checksum. English ones are much more opaque
Show threadEmsquaredApr 24
@ianturton @bobthomson70 There's an irony there somewhere.
Show threadEmsquaredApr 24
@bobthomson70 My English notes never made it across. One system divided by differences in how it is run within each of the countries in the union. .
Show threadBob ThomsonApr 24
@emsquared probably much like coming here. Nobody much cared about past notes other than to set the scene / history, then it was on to their tests and new history here.