Regular Expressions 101

Negated Character Class[^\w'-]+

+matches at least one character outside the set below:

\wa Unicode word character

'the literal ' (39₁₀ / 47₈ / 27₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Positive Lookahead(?=diagnosis)

diagnosisthe literal text diagnosis (case sensitive)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

[^\w'-]+(?=diagnosis)

Some other medical terms and stuff diagnosis of R45.2 was entered for  this patient. Where did Doctor Who go? Then xxx feea fdsfd

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