Morgan Stanley 0% INX/LKD – BW6S0X4 – GB00BW6S0X49
This is clearly a security (Equity Linked Notes).
If you accept nothing could be found anything using the ISIN or SEDOL but the Notes (‘securities’ for ISA purposes) is Morgan Stanley B.V then to qualify for ISA inclusion, either the security or the shares in the issuing company need to be listed on a recognised stock exchange or admitted to trading on a recognised stock exchange in the European Economic Area (EEA) or the UK (see ISA Guidance https://www.gov.uk/guidance/stocks-and-shares-investments-for-isa-managers#compsecur ).
The shares in the issuing company (Morgan Stanley BV) do meet the listing requirement (i.e., listed on a recognised stock exchange) so this security (equity linked notes) will be ISA qualifying.