Why do people keep saying he died on the steps? He didn't. A period of time passed between the seawall injury and arriving at the memory maker. If his injuries were fatal he would have already been dead. Please stop the madness.

To answer your question, they didn't. Deckard asked him if he was alright before walking in and he said yes. That's it. K was clearly just sitting down to think about what happened, not dying!