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HES Data Dictionary
| HES field name | Main operation - three characters | ||||
|---|---|---|---|---|---|
| Field | oper3 | ||||
| Class | Clinical | ||||
| Length and format | 3n, - or & | ||||
| Availability | |||||
| Description | |||||
|
This provides the first three characters of the main operation (oper_1). |
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| Value | |||||
3n = Procedure code - = No operation performed & = Not known |
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| Data cleaning |
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