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HES Data Dictionary
| HES field name | NHS Number status indicator | ||||
|---|---|---|---|---|---|
| Field | nhsnoind | ||||
| Class | System | ||||
| Length and format | 2n | ||||
| Availability | From 2002-03 | ||||
| Description | |||||
|
Codes in this field indicate whether the patients' NHS Number is present, and if it is verified. If the NHS Number is absent, the indicator gives the reason why. |
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| Value | |||||
01 = Number present and verified 02 = Number present but not traced 03 = Trace needed 04 = Trace attempted: no match, or multiple matches, found 05 = Trace needs to be resolved: New NHS Number or patient detail conflict 06 = Trace in progress 07 = Number not present and trace not needed 08 = Trace postponed (baby under six-weeks old) 91 = Patient identity witheld (derived from SUS if not equal to 90) (from 2009-10 onwards) |
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| Data cleaning |
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