HSN code for E-waste

Dear All Good Afternoon , My query was regarding HSN code to be used for E-waste. As GST  portal is displaying HSN code "85" for the same with 5% GST rate , whether the same be taken due to mandatory requirement of 6 /8 digit HSN code. Hence not able to confirm which HSN code to use for E-waste disposal ( old laptops & desktops).

Kindly help..

Thanks & Regards

Milesh Kadam