SQL & PL/SQL :: Reference List In Functions

I use some quantity of functions with list of account id like in example below. Some functions use the same account id list, some use another. Everything works fine except those days when changes come and lists should be updated. Then I should edit each function... I think about creating new table for reference list like

CREATE TABLE MYREFERENCELIST
AS
SELECT XXXX AS ACCOUNTID, YYYY AS LIST1 FROM DUAL
UNION ALL
SELECT ZZZZ AS ACCOUNTID, UUUU AS LIST2 FROM DUAL

FUNCTION ACCOUNTID
(arc_date date,
cid number )
RETURN NUMBER
AS
[code]..........