since we are talking about Andy's broken brain here is the read out of his last and only available medical report
The only condition Andy has been officially tagged with is APD or anti-social personality disorder.
Do note the report concludes at the end:
Px (patient) states using SI (suicidal idealization) for manipulation. Mimicking of borderline intellectual functioning (autism) for secondary gain.
Primary Diagnosis: Malingering (other)
That last bit was the deathblow to Andy's shenanigans in New York. Once he was officially hit with the malingering diagnosis his time milking the system was done. Hence the flight to Cleveland and thence to Pennsylvania.