A big milestone! 🎉
We are thrilled to share some fantastic news from the STXBP1 community: STXBP1-related disorders will have their very own ICD-10 code as of October 1, 2025.
This is not just bureaucratic jargon: it is a meaningful step forward in recognition, diagnosis, research, and care.
What Is an ICD-10 Code, and Why It Matters?
ICD stands for International Classification of Diseases. The ICD system is maintained by the World Health Organization and used by clinicians everywhere to code diagnoses, symptoms, and procedures in medical records.
In practice:
- Every time a clinician sees a patient and records a diagnosis, they assign one or more ICD codes.
- These codes are stored in electronic medical records (EMRs), used for billing, statistical analyses, epidemiology, and sharing information among providers.
- Having a distinct ICD code for a condition means that it can be reliably tracked, counted, and studied within healthcare systems.
Before this change, STXBP1-related disorders were hidden among more general or overlapping diagnoses (e.g. developmental delay, epilepsy, intellectual disability). That made it very difficult to extract accurate data or ensure that the genetic diagnosis was clearly documented in patient records.
With a dedicated ICD-10 code, STXBP1 diagnoses can be accurately and distinctly recorded. That helps:
- Clinicians recognize and document STXBP1 more easily
- Institutions and researchers identify cohorts of STXBP1 patients from medical databases
- Families make sure their child’s diagnosis “counts” in medical, insurance, and care systems
- Policy makers, funders, and health systems see the true prevalence and impact of STXBP1
- Advocacy and resource allocation be more precise
In short, this is a structural win that strengthens the foundation for better care, tracking, and research.
The New Code: QA0.0141
Starting October 1, 2025, the code QA0.0141 – STXBP1-related disorders will come into effect.
Importantly, this code is not intended to replace all related diagnosis codes (such as epilepsy, autism, or motor disability). Rather, it augments them. A patient’s record might then include:
- QA0.0141 — STXBP1-related disorders
- R56.9 — Seizure disorder
- Other codes relevant to the person’s symptoms or comorbidities STXBP1 Foundation
So, STXBP1 is finally being recognized as itself, while still capturing the full picture of each individual’s clinical presentation.
How Did This Happen?
This milestone is the result of sustained community effort:
- The STXBP1 Foundation submitted the application for an ICD-10 code in June 2021.
- Over the intervening years, more than 3,000 people signed letters in support
- More than 125 clinicians and healthcare workers also lent their voices
- Altogether, this advocacy and evidence made the case that STXBP1 deserves distinct recognition.
It’s a testament to what a determined, organized community can achieve, even in the complex world of medical coding and regulation. Looking ahead, the Foundation is already pursuing an ICD-11 code too (though rollout is a few years off in many countries).
What This Means for Families, Clinicians & Researchers?
For families / caregivers / patients:
- At your next medical or neurology appointment, mention the new ICD-10 code QA0.0141 to your provider.
- You can download and print a one-page information sheet (in color or black & white) to share with the provider so they understand exactly what to do.
- It means your child’s diagnosis can be captured more reliably in medical records.
For clinicians & providers:
- Be ready to integrate QA0.0141 into your diagnosis coding and electronic health record workflows.
- Use it in addition to symptom / disorder codes (epilepsy, motor impairment, etc.), not instead.
- Recognize that this code helps with tracking, referrals, and research.
For researchers and health systems:
- This opens the door to better case ascertainment from hospital and national databases.
- You’ll be able to quantify the burden, natural history, comorbidities, treatments, and outcomes of STXBP1 cohorts more robustly.
It strengthens grant proposals, epidemiological studies, and efforts for clinical trials.
Why This Is a “Moonshot Worth Celebrating”
At Rafa’s Moonshot, our mission is to push the boundaries of what’s possible for rare diseases. Milestones like this, while technical, are foundational. They lay the infrastructure upon which breakthroughs in diagnosis, treatment, and care are built.
Recognition in ICD-10 is a form of legitimacy, visibility, and accessibility. It aligns STXBP1 with other better-known disorders in health systems, making it less likely to be overlooked, miscategorized, or “invisible” in data. Over time, that leads to more refined research, more accurate prevalence estimates, better funding, improved access to services, and ultimately stronger momentum toward cures or therapies.
We at Rafa’s Moonshot celebrate this win, and we stand ready to support clinics, families, and researchers in making the most of it.


