Originally Posted by
Neptune262
I found a "report visual" but nothing else.
A phrase I would only use for VFR traffic - unlike a certain UK east coast airfield who take that as cart blanche to clear IFR traffic for a visual approach without it being requested (I know - I had it done to me!)
The fact that it's up to the crew to request it, not ATC to offer it means I wouldn't worry whether ICAO have the phraseology for it or not. IFR inbounds get told the type of instrument approach to expect - if they want to go visual then they ask - they're all big enough, qualified enough and able enough to do so. (Bear in mind that with sequencing you might not actually be able to offer it anyway when requested).
If such phraseology exists then it's pointless bearing in mind the above.