3. In a claim for the negligent failure to diagnose a malignant tumor, cancer, or an intracranial, intraspinal, or spinal schwannoma, for a period of one year from the date the diagnosis of a malignant tumor, cancer, or an intracranial, intraspinal, or spinal schwannoma is communicated to the patient by a health care provider, provided that the health care provider's underlying act or omission was on or after July 1, 2008, in the case of a malignant tumor or cancer or on or after July 1, 2016, in the case of an intracranial, intraspinal, or spinal schwannoma. Claims under this section for the negligent failure to diagnose a malignant tumor or cancer, where the health care provider's underlying act or omission occurred prior to July 1, 2008, shall be governed by the statute of limitations that existed prior to July 1, 2008. Claims under this section for the negligent failure to diagnose an intracranial, intraspinal, or spinal schwannoma, where the health care provider's underlying act or omission occurred prior to July 1, 2016, shall be governed by the statute of limitations that existed prior to July 1, 2016.
However, the provisions of this subsection shall not apply to extend the limitations period beyond 10 years from the date the cause of action accrues, except that the provisions of subdivision A 2 of § 8.01-229 shall apply to toll the statute of limitations in actions brought by or on behalf of a person under a disability.
