Hello, I need help extracting unique ICD 10 diagnosis codes from a character variable (ICD10_with_Description): Have ICD9 ICD10_with_Description 431 I61.0 Nontraumatic intracerebral hemorrhage in hemisphere, subcortical I61.1 Nontraumatic intracerebral hemorrhage in hemisphere, cortical I61.2 Nontraumatic intracerebral hemorrhage in hemisphere 431 I61.4 Nontraumatic intracerebral hemorrhage in cerebellum I61.5 Nontraumatic intracerebral hemorrhage, intraventricular 431 I61.6 Nontraumatic intracerebral hemorrhage, multiple localized I61.8 Other nontraumatic intracerebral hemorrhage 437.7 G45.4 Transient global amnesia I want a dataset with 1 var Unique_dx I610 I611 I612 I614 I615 I616 I618 G454 Thank you for your help!
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