Absolutely not. You can have a heart defect that leads to symptoms. You can also have a heart defect that leads to no symptoms and is merely a footnote.
No one in diagnostic medicine talks like this though. If a patient has a patent foramen ovale, it’s listed as such. Yes, it’s a heart condition, but it’s a PFO. The pt may or may not have a higher stroke risk and severe migraines because of the dirty blood being shunted.
Additionally, defects may be abnormal, but may be asymptomatic. You may have an intercranial lipoma, and it may be completely asymptomatic. Having this defect doesn’t mean you have a “condition”. And I’ve never heard anyone use the term “brain condition”.