Yes. It is named for the village where my mortal self was born and raised, the only one where the parasite is known to live.

The sensation of crawling things under your skin, the paranoia, the phantom "footsteps of Oyashiro-Sama" behind you, vivid hallucination... All of these are known symptoms of that disorder.

There are other madnesses and eldritch, foul magic that the Crawling Chaos may have used - including that damnable, blasphemous Ritual of the Drifting Entrails - but thanks to that terrible being's meddling and the inspiration he took from Oyashiro-sama, I can say with certainty which symptoms are magical in origin and which are the syndrome.