F84.1: Atypical autism

Someone with autism can have great difficulty in interacting with other people and communicating with them. You may find it hard to show your own feelings or understand other people’s feelings. You may also be unable able to speak properly, or even to speak at all.

Autism can also affect other behaviors. You may have very fixed habits and interests, for example. You may also keep repeating particular actions. You may also find it very difficult to come to terms with new situations.

The causes of autism are not yet properly understood. It is thought that various factors can cause autism. For instance, certain genetic changes increase the risk of autism.

Patient Disclaimer

The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.

If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.

For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.