Tax return submission 2014/2015 finalised without disability declared

My son has been moderate to severe disability and met the criteria since September 2014. Submitted al extra medical expenses on my tax return but never declared the disability. Can this be reviewed?

Yes it can be for the 2015 tax year, you would need to request a correction and resubmit your return. However you first need to get a ITR-DD from SARS in order to be approved to claim disability.