What is the difference betweenn language delay and autism?

Nowadays, every . child with Receptive &/or Expressive Language Delay needs assessment of overall development & autism-specific tests to rule out Autistic Spectrum Disorder &/or Global Developmental Delay. Deficits in intent to communicate, joint attention, gaze monitoring & reciprocal social interaction with repetitive, non-functional movements point to ASD. See firstsigns.org for developmental screens & M-CHAT. .