CDC Set to Officially Recognize COVID-19 Vaccine Injury with Unprecedented ICD-10 Diagnostic Code

ATLANTA, GA, March 18, 2026 — For the first time in U.S. history, a dedicated ICD-10 diagnostic code specific to adverse effects of COVID-19 vaccines is moving forward. React19 advanced the proposal at the March 17–18, 2026 ICD-10 Coordination and Maintenance Committee Meeting, and it has now entered a 60-day public comment period ending May 15, 2026.
 
Your voice matters right now. Submitting a short, respectful public comment to the CDC takes less than five minutes and helps strengthen the case for official recognition of vaccine injuries. Accurate coding means better tracking, research, treatment, and support for those affected. If you or someone you know has been impacted, please read on — we’ve made it simple with a ready-to-use template below.
 
The proposal aims to address a critical gap: currently, no specific ICD-10-CM code exists for adverse effects following COVID-19 vaccination. This has led to widespread miscoding, under-recognition, and difficulty in tracking, researching, and treating these conditions. The proposed code would give clinicians, researchers, and public health officials a clear way to document these cases.

 
Proposed Code:
T50.B25 – Adverse effect of COVID-19 vaccines
(with three variations:
• T50.B25A – initial encounter
• T50.B25D – subsequent encounter
• T50.B25S – sequela)
 
“You cannot treat what you cannot name. Today, we took a critical step toward naming these conditions — and changing the future for patients,” said Dr. Joel Wallskog, Co-Founder of React19.

How to Submit Your Public Comment

This takes less than five minutes. Every comment helps strengthen the case for adoption.
Deadline: Friday, May 15, 2026
Send to: nchsicd10cm@cdc.gov

Step-by-step:
 

Copy the template email below.
Personalize it with your name and any optional details (title, organization, city, state).
Send it — no attachments needed.
Share this with others who understand why accurate medical coding matters.

 
Template Email
 

TO: nchsicd10cm@cdc.gov

SUBJECT: Public Comment in Support of Proposed ICD-10-CM Code T50.B25 – Adverse Effect of COVID-19 Vaccines
 
Dear NCHS ICD-10-CM Coordination and Maintenance Committee,
 
I respectfully write in support of adopting code T50.B25, including its three encounter-specific variations:
 
• T50.B25A – Adverse effect of COVID-19 vaccines, initial encounter
• T50.B25D – Adverse effect of COVID-19 vaccines, subsequent encounter
• T50.B25S – Adverse effect of COVID-19 vaccines, sequela
 
Currently, no specific ICD-10-CM code exists for adverse effects following COVID-19 vaccination. In practice, the lack of this code has resulted in miscoding. This miscoding hides the true nature of these cases in medical records, research datasets, and public health surveillance systems, and it mixes together two very different patient groups.
 
A dedicated code under the new subcategory T50.B2 would allow clinicians, researchers, and public health professionals to:
 
• Accurately document adverse effects specific to COVID-19 vaccines
• Support ongoing research and surveillance of post-COVID-19 vaccine conditions
• Improve patients’ ability to receive appropriate care
 
Medical coding is fundamental to the integrity of our health data infrastructure. Adopting T50.B25 is a straightforward and meaningful step toward ensuring that patients experiencing adverse effects following COVID-19 vaccination receive accurate and complete documentation of their conditions — separate and distinct from those affected by COVID-19 infection itself.
 
Thank you for your consideration of this proposal and for your continued work on the ICD-10-CM code set.
 
Respectfully,
[Your Full Name]
[Title / Organization – optional]
[City, State – optional]
[Email Address – optional]
Copy, personalize, and send to nchsicd10cm@cdc.gov by May 15, 2026.

 
Background & Why This Matters
 

For the first time, the federal agency responsible for the nation’s medical coding system has proposed a dedicated code for adverse effects of COVID-19 vaccines.
More than four years after the rollout of COVID-19 vaccines, the United States still has no specific diagnosis code to document the health conditions that arise from them.

At the March 17–18, 2026 ICD-10 Coordination and Maintenance Committee Meeting, the National Center for Health Statistics (NCHS) presented a formal proposal to add T50.B25x – Adverse Effect of COVID-19 Vaccines to the ICD-10-CM code set used by every U.S. healthcare provider, hospital, insurer, and public health agency.

The proposal was brought forward at the request of React19, the nonprofit organization representing individuals experiencing persistent health conditions following COVID-19 vaccination.

 
What Is ICD-10-CM and Why Does It Matter?

The ICD-10-CM is the standardized system used by U.S. providers to classify and document diagnoses. These codes affect insurance reimbursement, hospital resources, public health tracking, and clinical research. When a condition has no specific code, it becomes invisible in the system.
 
The power of a dedicated code was clearly shown in October 2021 when U09.9 (Post-COVID-19 condition, unspecified) was added for Long COVID. That single code made it possible to track and study the condition more effectively.

 
The Current Problem

Right now, when a patient has an adverse effect after a COVID-19 vaccine, there is no specific code to use. Providers are directed to a general “other viral vaccines” code (T50.B95-), which creates confusion because COVID-19 vaccines are mRNA-based, not traditional viral vaccines. This has led to widespread miscoding — often under the Long COVID code — which mixes two completely different patient groups and corrupts the data for both.
 
As Dr. Joel Wallskog has noted: “In practice, the absence of a specific code has led to widespread miscoding of COVID-19 vaccine adverse effects under U09.9 Long COVID, conflating two distinct patient populations and corrupting the data for both.”

 
What the New Code Would Do
 

React19 proposed a new subcategory T50.B with three specific codes. The “sequela” version (T50.B25S) is especially important because it allows doctors to document the ongoing link between a patient’s current symptoms and their prior vaccination.
 
When used correctly, T50.B25 would be listed as a secondary code alongside the specific symptoms or conditions the patient is experiencing. For example:
 
Example Clinical Coding Scenario

Primary: T50.B25S — Adverse effect of COVID-19 vaccines, sequela
Secondary: G90.1 — Postural Orthostatic Tachycardia Syndrome (POTS)
Secondary: G62.81 — Small fiber neuropathy
Secondary: R53.82 — Chronic fatigue
Secondary: D89.40 — Mast cell activation syndrome (MCAS)

 
The Clinical Picture
 

The patients who would benefit from this code often experience persistent, multisystem symptoms after COVID-19 vaccination — sometimes called Post-COVID-19 Vaccination Syndrome (PCVS). Research has shown involvement in neurological, autonomic, cardiovascular, musculoskeletal, pulmonary, gastrointestinal, immunological, hematologic, and constitutional systems.
 
Because there is some overlap with Long COVID, having a distinct code is essential so the two groups are not mixed together in data and research.

 
What Happens Next

 
The ICD-10 Coordination and Maintenance Committee will review all public comments received by May 15, 2026. After that review, they will make a final decision. If approved, the new codes would typically take effect at the start of the next fiscal year coding cycle.
 
This is a rare opportunity for patients, providers, and the public to directly influence the coding system that shapes medical care, research, and policy in the United States.
 
“Without proper diagnosis codes, these emerging complex chronic illnesses remain invisible to surveillance systems, preventing early recognition, appropriate treatment, and proper resource allocation.” — Brianne Dressen
 
The proposed code T50.B25 is not a political statement. It is a practical data infrastructure decision. Accurate coding does not create conditions — it simply makes existing ones visible so they can be properly studied and treated.
 
React19 strongly encourages everyone who supports accurate recognition and care for the vaccine-injured to submit a public comment by May 15, 2026.
 
You can review the full CDC proposal (pages 16–17) here: https://www.cdc.gov/nchs/data/icd/topic-packet-March-2026.pdf?blm_aid=294936577