A typical Howeowners policy will not cover basement walls/foundation for normal wear and tear. However, if a named peril occurs for which you have coverage, then you can make a claim against your insurance company. For example, if you have an earthquake endorsement on your policy and one occurs, that will trigger coverage for your basement walls.
A corollary to this is seeking a basement wall/foundation endorsement on your policy. This will provide more elaborate coverage for your basement walls/foundation regardless of a named peril.
A typical Howeowners policy will not cover basement walls/foundation for normal wear and tear. However, if a named peril occurs for which you have coverage, then you can make a claim against your insurance company. For example, if you have an earthquake endorsement on your policy and one occurs, that will trigger coverage for your basement walls.
A corollary to this is seeking a basement wall/foundation endorsement on your policy. This will provide more elaborate coverage for your basement walls/foundation regardless of a named peril.