Short answer · Medically reviewed summary · Last updated: 2026-04-06
The ICD-10 code for Asperger Syndrome is F84.5, while the ICD-9 code historically used to classify this condition is 299.80. As a specialist physician, I recognize that navigating the diagnostic classification of Asperger Syndrome can be confusing because the medical landscape has shifted significantly in recent years. While the ICD-10 still lists F84.5 as a distinct entry for Asperger Syndrome, the psychiatric community—led by the transition to the DSM-5 and the newer ICD-11—has moved toward folding the condition into the broader diagnosis of Autism Spectrum Disorder (ASD).
3 people with Asperger Syndrome have shared their first-person experience on this question at DiseaseMaps.
ICD10 code of Asperger Syndrome and ICD9 code
ICD-10 and ICD-9 codes for Asperger Syndrome, with classification details for clinicians, coders and patients.
The ICD-10 code for Asperger Syndrome is F84.5, while the ICD-9 code historically used to classify this condition is 299.80.
As a specialist physician, I recognize that navigating the diagnostic classification of Asperger Syndrome can be confusing because the medical landscape has shifted significantly in recent years. While the ICD-10 still lists F84.5 as a distinct entry for Asperger Syndrome, the psychiatric community—led by the transition to the DSM-5 and the newer ICD-11—has moved toward folding the condition into the broader diagnosis of Autism Spectrum Disorder (ASD). This change was implemented to better capture the spectrum of symptoms rather than treating the condition as a rigid, separate category.
Clinical Implications of Classification
For individuals living with Asperger Syndrome, these codes remain important for administrative purposes, such as securing insurance coverage, accessing specialized educational accommodations, or qualifying for disability support services. Even though the diagnostic criteria have evolved, the lived experience of those in our community remains valid and distinct. Many adults who previously received an Asperger Syndrome diagnosis still identify strongly with the term because it helps them understand their unique cognitive profile, including specific strengths in focus and logic alongside challenges in social communication and sensory processing.
Moving Forward with Your Diagnosis
If you are currently managing your health or supporting a loved one with Asperger Syndrome, remember that a code is merely a tool for communication between healthcare providers and insurers; it does not define your potential or the complexity of your experience. We encourage you to focus on the specific clinical needs—such as occupational therapy, social skills training, or sensory support—rather than the specific code on a chart. Our community at DiseaseMaps.org is here to support you in finding personalized strategies that address your specific needs within the spectrum.
Disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
References
- World Health Organization (WHO) - ICD-10 Version: 2019
- NIH Genetic and Rare Diseases Information Center (GARD)
- Orphanet: Portal for rare diseases and orphan drugs
- Autism Society of America
ICD9 code is 299.8
Posted May 18, 2017 by Sarah Jane 5070
In the ICD10 autism was divided into eight categories, one of which was Asperger's Syndrome.
Posted Jul 22, 2017 by Jhoanna 2000
Posted Sep 1, 2017 by Montserrat Manresa Boixet 2050
