When we think about advancing research for Nemaline Myopathy (NM), we often focus on the massive milestones, like clinical trials and laboratory breakthroughs. But a huge amount of progress actually starts with a simple string of characters in your medical chart: G71.21.

In 2021, dedicated community advocates successfully secured a unique International Classification of Diseases (ICD) code specifically for Nemaline Myopathy. Previously, NM patients were grouped under vague, generic diagnostic labels. Today, we have our own distinct clinical identity in medical databases worldwide.

The Power of a Distinct Diagnostic Code

Historically, rare conditions were vastly underrepresented in medical coding. Many had no code of their own and were folded into broad, generic categories that made them nearly invisible in medical databases. For a long time, that was the reality for Nemaline Myopathy.

Having a distinct ICD code for NM changes that. It gives our condition its own clear identity in the health systems and databases that track disease. It means that when your care team documents your diagnosis, you are counted specifically as a person living with Nemaline Myopathy, not lumped into a vague catch-all. That precision is exactly the infrastructure researchers need to study NM with the granularity it deserves.

Why Your Individual Data is Incredibly Precious

Because Nemaline Myopathy is a rare condition, the total number of individuals living with NM is relatively small. In the world of medical research, this means there is no such thing as an insignificant data point. Your medical data, or the data of the person you care for, is incredibly valuable to the community as a whole.

You have the power to affect real change and bring us closer to effective treatments through small, routine actions. When every affected individual and caregiver ensures their diagnosis is documented correctly, it transforms a collection of isolated medical files into a powerful, unified dataset.

A short conversation with your care team can make a world of difference to Nemaline Myopathy research efforts!

Your Action Item: Two Minutes to Confirm Your Diagnosis is Documented

The next time you message your doctor, log into your patient portal, or visit a clinic, take a moment to confirm that Nemaline Myopathy is documented as your specific diagnosis. You can send a quick note to your care team like this:

“I want to make sure my Nemaline Myopathy diagnosis is documented specifically in my records. Could you confirm it’s noted as Nemaline Myopathy (ICD code G71.21) rather than a more general muscle disorder?”

In most electronic health record systems, once the specific diagnosis is entered, the correct ICD code (G71.21) is generated automatically, so this usually doesn’t create any extra work for your provider. It takes just a couple of minutes, but when our entire community takes this step, it gives scientists the visibility they need to study our disease effectively.

Fueling Our Search for Treatments

Properly documented data is especially crucial right now as AFBS expands our research footprint.

When your diagnosis is recorded specifically as Nemaline Myopathy, it allows researchers to more accurately track disease prevalence, understand how NM progresses over time, map the natural history of the condition, and see how different individuals respond to various medical interventions.

Furthermore, because ICD codes are a standardized international system, they create a common language. This allows researchers across the world to merge datasets and collaborate without translation errors or administrative confusion.

Your clinical journey is a vital piece of the puzzle. By making sure your care team documents your diagnosis specifically, you are playing an active role in advancing NM research, unlocking real-world data, and accelerating the path toward life-changing treatments.


A Foundation Building Strength (AFBS) is a nonprofit organization dedicated to accelerating the development of treatments for Nemaline Myopathy. Our mission is to fund cutting-edge research to find effective treatments while providing resources and a strong community for families affected by NM. We are proud to be at the forefront of driving Nemaline Myopathy research breakthroughs forward through collaborations with research teams across the globe.

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