Re: Hidden foundation wall causes anxiety
It would appear from the image provided that the foundation is fully visible and is stepped to account for the slope of the ground. Everything above the gray "steps" appears to be wood framing. Unless dirt is against the exterior wood/siding, there shouldn't be too much to worry about if there are no visible signs of problems with that wall. Take a reference measurement, say from the floor joists to the foundation steps and to the dirt, then go outside and try to locate the floor joists and transfer your measurements. If you can determine what room is above this area it will also help you to determine the status of the ground level against the house.
I personally don't see anything of concern in your picture.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!