Regex for String folloed by number ( 1/2/3 digit)

Below are my 3 logs, i want to write a query, to get all the below 3 logs **EXT_CODE*[0-9]** with 1/2/3 digit followed by EXT_CODE index="zync*"|EXT_CODE2=AB003|EXT_CODE35=BC003|EXT_CODE4=CA010|GEN_CODE14=CD010 index="zync*"CDT|EXT_CODE4=XY005|EXT_CODE42=DE040|EXT_CODE4=ZQ019|GEN_CODE11=PY016 index="zync*"|EXT_CODE5=PC099|EXT_CODE22=BC054|EXT_CODE4=ZC018|GEN_CODE11=ZV010 Can some one please suggest the query my query: index="zync*" EXT_CODE[0-9]*="*"