Answer: PDD-NOS or Pervasive Developmental Disorder, Not Otherwise Specified is a condition that I have limited experience with. I suspect that, as you say, it may not be possible to find insurance for your son. There are guaranteed options for children in your state with CHIP. Texas CHIP is for uninsured state residents under the age of 19. Applicants also need to be U.S. citizens or legal residents. Also, family income must fall within the posted family income guidelines. Usually there is a 90 day waiting period before program benefits start.

If you do not meet the income guidelines for this plan I would consider Texas Health Insurance Risk Pool. Coverage is guaranteed and you do not need to meet any income parameters. Good luck.