Yes. In general terms it is, but it may not be significant.

If a routine diagnosis of a small lesion on a person’s skin was misdiagnosed. Later determined to be a basal cell carcinoma (skin cancer.) But it is an easily addressed skin cancer. The delay didn’t cause any particular harm for the patient. Then the misdiagnosis really wouldn’t be a basis to bring a medical malpractice claim.

If a patient has a chest x-ray and there’s clearly a lesion shown on the x-ray and the radiologist missed it. Did not tell the patient. The patient later dies as a result of the misdiagnosis. The lung cancer or the cancer was never addressed. That misdiagnosis would produce an actionable medical malpractice case.