Winter 2025/2026

In the Long Run: How Long COVID Impacts Workers’ Comp

Fast Focus

Recent industry data has shown that while more severe cases of Long COVID are uncommon, those cases can significantly impact claims costs in workers’ comp. These low-volume, high-cost circumstances warrant a deeper dive into Long COVID, including how it affects disability, injury recovery, pharmacy management, and more.

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The COVID-19 pandemic impacted the world in such an unprecedented manner that the ripple effects continue to be felt – including the prevalence of Long COVID, the chronic condition that can linger for weeks, months, or even years after COVID-19 infection.

In workers’ comp, data has shown that while Long COVID appears in few claims, it significantly impacts medical care and drives up costs. This is likely because Long COVID frequently stems from more intense cases of acute COVID-19 infection, and these claims last longer and require ongoing care as chronic symptoms resurface.

Low Prevalence, High Impact in Workers’ Comp

Among COVID claims in workers’ comp, Long COVID made up:

of COVID-19 claims across the nation, according to WCRI1
of COVID-19 claims in New York State2
COVID-19 claims in California3

While Long COVID is relatively uncommon in workers’ comp claims, the impacts speak for themselves:

•	In California, Long COVID cases consumed 82.1% of COVID treatment payments, totaling $105.5 million from 2020-20223•	In New York, 18% of Long COVID patients were unable to return to work for more than a year2

Additionally, even if Long COVID isn’t work-related or covered by workers’ comp, the health impacts of Long COVID have the potential to impact injured worker recovery as a comorbid condition.

This raises the question: what are the health impacts of Long COVID?

What is Long COVID?

Long COVID – also known as post-COVID conditions (PCC), post-COVID-19 syndrome, long-haul COVID, post-acute sequelae of SARS-CoV-2 (PASC) and other names – is a chronic health condition that occurs after COVID-19 infection and is present for at least three months. It is a serious illness that can result in chronic conditions requiring comprehensive care, and can last for weeks, months, or even years after COVID-19. Symptoms can persist, resolve, and re-emerge over weeks and months.4

Long COVID Symptoms

The CDC found that more than 200 Long COVID symptoms have been identified, but what follows are the more commonly reported symptoms:5

long-covid-symtoms-body-graphic

Respiratory symptoms

such as difficulty breathing, coughing, or shortness of breath

Heart symptoms

such as fast-beating heart or a pounding heart

Fatigue/tiredness

Post-exertional malaise (PEM)

a worsening of symptoms after exercise, social activity, and emotional stressors

 Joint or muscle pain

Digestive symptoms

such as diarrhea, stomach pain, and constipation

Prevalence and At-Risk Populations for Long COVID

In 2022, the CDC found that 6.9% of adults had Long COVID at some point in time,6 while the National Academies of Sciences, Engineering, and Medicine estimates that 8.9 million Americans had Long COVID symptoms in 2022.7

The likelihood of Long COVID increases with age, while women, Hispanic/Latino populations, and those unvaccinated against COVID-19 are more likely to get Long COVID.4

According to data from California, across industries there was a higher prevalence for Long COVID found in the healthcare, manufacturing, and retail industries.8

Within workers’ comp, injured workers who received more intensive medical interventions during the acute stages of COVID-19 were more likely to receive care for Long COVID.1

Among injured workers who received ICU care for COVID-19 – less than 1% of those with COVID claims – 74% of those workers received treatment for Long COVID.1

Furthermore, injured worker patients in California with pre-existing comorbidities had a 50% higher prevalence of developing Long COVID.8

Long COVID as a Disability

Long COVID can be a disability under the Americans with Disabilities Act (ADA) if it substantially limits one or more major life activities. This means that businesses or state or local governments will sometimes need to make changes to their operations to accommodate a person’s Long COVID-related limitations.9

How Long COVID Can Impact Workers’ Comp Claims

Whether or not a case of Long COVID is directly covered by workers’ comp or viewed as a comorbidity occurring alongside an unrelated workplace injury, there are many ways the health complications of Long COVID can impact claims, from wound recovery to organ damage and muscle weakness.

Wound Recovery

COVID‐19 can prolong primary wound healing by inducing excessive inflammation and oxidative stress, disturbing the immune and hematologic systems, as well as influencing the functions and viability of epidermal stem cells.10

If an injured worker’s wounds take longer to heal, that could extend recovery, the life of a claim, and the need for additional treatment.

Organ Damage Can Lead to Pharmacy Management Concerns

Multi-organ injuries are observed in more severe cases of COVID-19, potentially impacting the lungs, heart, kidneys, and liver.11

For patients who suffer organ damage resulting from a severe case of COVID-19 and then go on to develop Long COVID, any lasting damage caused during the initial COVID-19 infection can go on to be a complicating factor. Considering that Long COVID is more likely to develop after more extreme cases of COVID-19, these symptoms are incredibly relevant when navigating pharmacy management across patients with Long COVID.

If an injured worker sustained organ damage from initial COVID-19 infection, medications commonly utilized in workers’ comp may not be compatible due to potential drug-drug and drug-disease interactions.

The WCRI found that from Q1 2021 to Q1 2023, half of the prescriptions in COVID-19 claims were for respiratory medications, and that 64% of workers with Long COVID had lung-related conditions.12, 1

Possible Drug-Disease Concerns Between Workers’ Comp Medications and Long COVID

Lung Damage

Opioids

Boxed Warning for life-threatening respiratory depression; contraindicated in patients with significant respiratory depression13-14

Benzodiazepines

Usage of diazepam is contraindicated in patients with severe respiratory insufficiency and severe hepatic insufficiency15

Liver Damage

Benzodiazepines

In patients with hepatic impairment (liver damage), it is recommend to start patients at the lowest possible dose of alprazolam16

Acetaminophen

Boxed Warning for hepatotoxicity/acute liver failure; contraindicated in patients with severe liver impairment or severe active liver disease; use with caution in patients with liver impairment or active liver disease17

Muscle Relaxants

Cyclobenzaprine use in patients with hepatic impairment (liver dysfunction) is not recommended for the extended-release formulation. Immediate release formulations may require dosage adjustments18

Heart Conditions

Muscle Relaxants

Cyclobenzaprine is contraindicated in patients with acute myocardial infarction (heart attack), arrhythmia, heart block or conduction disturbances, or congestive heart failure19

NSAIDs

Boxed Warning for serious cardiovascular thrombotic events, including myocardial infarction (heart attack) and stroke20

Kidney Damage

Muscle Relaxants

Use of baclofen in patients with impaired renal function(kidney problems) may require reduced dosage21

NSAIDs

NSAIDs could cause kidney failure and patients are advised to discuss kidney problems with their doctor20

Muscle Weakness and Fatigue Can Impact Return to Work

Long COVID symptoms can include post-exertional malaise, a condition that causes high fatigue after light physical activity, social activity, and emotional stress.5 Additionally, in a study by Nature that compared pre-and-post-exercise biopsies between Long COVID patients and healthy controls, Long COVID patients displayed significant muscle damage, a disturbed immune response, and a buildup of microclots.22

In fact, a report from the CDC found that for workers with Long COVID, returning to work too early can result in health deterioration, noting the importance of prolonged reconditioning and gradually reintroducing patients back into the workplace.23

This can impact return-to-work strategies for various occupations, particularly those with high physical demands.

Physical Therapy and Long COVID

A systematic review from Diseases noted a positive implication for the advancement of physical activity as a therapeutic intervention for individuals with Long COVID-19.24

While more research is needed into the subject, this does mean certain forms of physical therapy modalities could benefit Long COVID patients.

However, due to the possible presence of fatigue and muscle weakness, this could reduce the pace at which patients could engage with physical therapy.

If physical therapy is found to be an effective tool, this could impact the utilization of physical therapy in these patient populations.

Managing Recovery and Return to Work with Long COVID

Addressing Long COVID requires a multi-pronged approach, as the complexities of this condition can vary significantly.

Keeping Up to Date with Evolving Research

Considering how recent COVID-19 and Long COVID are, there is still ongoing research to determine optimal treatment strategies for Long COVID. Additionally, while the pandemic has ended, new COVID variations continue to emerge, which could result in new cases of Long COVID. Understanding evolving risks, prevention strategies, and treatments remains important.

Understanding Disability Status

Not all cases of Long COVID qualify for disability status, but those that do entitle individuals to reasonable accommodations. Workplace accommodations can include but are not limited to rest breaks, a plan of action during flare-ups, remote work when applicable, and periods of intermittent leave to aid in recovery.25

Modifying Return to Work Strategies

Considering certain physical and neurological challenges of Long COVID, it may be beneficial to provide alternate work assignments and environments to accommodate workers with Long COVID who are returning to the workforce. A more gradual reintroduction to the job could be beneficial in recovery.

What Strategies Can Managed Care Programs Apply?

In response to the possible prescription drug management concerns that can accompany Long COVID in workers’ comp, workers’ comp payers can leverage the clinical expertise and capabilities of their PBM and/or medical management partners to address potential complexity. Example capabilities include:

  • A highly configurable formulary that can account for variable and dynamic population needs. For example, the capability to consider injury type, specific safety parameters, and other criteria that can manage safe and effective drug therapy for Long COVID populations
  • High-touch clinical review and intervention programs designed to address factors such as drug-disease and drug-drug interactions, polypharmacy, adherence concerns, and more
  • Application of predictive analytics to predict potential utilization of services to support early management

Long COVID represents another recent example of how risk impacting a small portion of workers’ compensation can have a significant impact on cost and claims outcomes, depending on the demographics of a payer’s covered population. Healthesystems continues to monitor and report on such evolving risks.

References

  1. Savych B. Long COVID in the workers compensation system in 2020 and 2021. Workers’ Compensation Research Institute. Aug 17, 2023. https://www.wcrinet.org/reports/long-covid-in-the-workers-compensation-system-in-2020-and-2021
  2. Shining a light on long COVID: an analysis of workers’ compensation data. New York State Insurance Fund. January 2023. https://ww3.nysif.com/-/media/Files/NYSIF_Publications/PDF/NYSIFLongCOVIDStudy2023.pdf
  3. CWCI: Long COVID accounts for three quarters of California workers' comp COVID claim payments. California Workers’ Compensation Institute. June 3, 2025. https://www.cwci.org/press_release.html?id=1064
  4. Long COVID basics. Centers for Disease Control & Prevention. July 24, 2025. https://www.cdc.gov/long-covid/about/index.html
  5. Long COVID signs and symptoms. Centers for Disease Control & Prevention. July 24, 2025. https://www.cdc.gov/long-covid/signs-symptoms/index.html
  6. Adjaye-Gbewonyo D, Vahratian A, Perrine CG, et al. Long COVID in Adults: United States, 2022. NCHS Data Brief No. 480 September 2023. Sep 2023. https://www.cdc.gov/nchs/data/databriefs/db480.pdf
  7. Volberding P, Chu BX, Spicer CM. Long-term health effects of COVID-19: disability and function following SARS-CoV-2 infection. National Academies of Sciences, Engineering, and Medicine. 2024 https://nap.nationalacademies.org/catalog/27756/long-term-health-effects-of-covid-19-disability-and-function
  8. Zhang J, Yu Y, Chen L. Long COVID in the California workers’ compensation system – 2024 update. Sep 30, 2024. https://www.wcirb.com/sites/default/files/2024-09/long_covid_in_the_california_workers_compensation_system_-_2024_update_-_2024-09-30.pdf
  9. Guidance on “Long COVID” as a Disability Under the ADA, Section 504, and Section 1557. S. Department of Health and Human Services. Last reviewed July 30, 2025. https://www.hhs.gov/civil-rights/for-providers/civil-rights-covid19/guidance-long-covid-disability/index.html
  10. Li D, Cao W, Zhou Q, et al. COVID-19 and primary wound healing: a new insights and advance. Int Wound J. 2023 Dec;20(10):4422-4428. https://doi.org/10.1111/iwj.14324
  11. Yan Z, Yang M, Lai CL. Long COVID-19 syndrome: a comprehensive review of its effect on various organ systems and recommendation on rehabilitation plans. biomedicines. 2021 Aug 5;9(8):966. https://doi.org/10.3390/biomedicines9080966
  12. Recorded webinar: trends in workers’ compensation drug payments across states. Workers’ Compensation Research Institute. Aug 1, 2024. https://www.wcrinet.org/webinars/detail/webinar-trends-in-workers-comp-drug-payments-across-states
  13. OxyContin® (oxycodone HCl) extended-release tablets drug label. Purdue Pharma. Accessed Aug 6, 2025. https://www.oxycontin.com/
  14. Zohydro® ER (hydrocodone bitartrate) extended-release capsules drug label. FDA. 2016. https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/202880s009s010lbl.pdf
  15. Valium® (diazepam) tablets drug label. 2016. https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/013263s094lbl.pdf
  16. Xanax® (alprazolam tablet) drug label. March 2021. https://labeling.pfizer.com/showlabeling.aspx?id=547
  17. Acetaminophen monograph. com. Last reviewed June 10, 2024. https://www.drugs.com/monograph/acetaminophen.html
  18. Amrix® (cyclobenzaprine hydrochloride extended-release capsules) drug label. FDA. 2019. https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/021777s017lbl.pdf
  19. Cyclobenzaprine hydrochloride tablet, film coated drug label. Daily Med. Nov 17, 20217. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=5da7b877-db34-d9af-e053-2a91aa0aa7a0
  20. Ibuprofen: package insert/prescribing info. com. Last updated April 14, 2025. https://www.drugs.com/pro/ibuprofen.html
  21. Lyvsipah (baclofen) oral granules drug label. 2021. https://www.accessdata.fda.gov/drugsatfda_docs/label/2021/215422lbl.pdf
  22. Appelman B, Charlton BT, Goulding RP, et al. Muscle abnormalities worsen after post-exertional malaise in long COVID. Nat Commun 15, 17 (2024). https://doi.org/10.1038/s41467-023-44432-3
  23. Howard J, Cloeren M, Vanichkachorn, et al. Long COVID and occupational medicine practice. Centers for Disease Control and Prevention. Jan 22, 2024. https://blogs.cdc.gov/niosh-science-blog/2024/01/22/long-covid-om/
  24. Sánchez-García JC, Reinoso-Cobo A, Piqueras-Sola B, et al. Long COVID and physical therapy: a systematic review. Diseases. 2023 Nov 9;11(4):163. https://doi.org/10.3390/diseases11040163
  25. Long COVID-19 and disability accommodations in the workplace. National Council of State Legislatures. Mar 13, 2025. https://www.ncsl.org/labor-and-employment/long-covid-19-and-disability-accommodations-in-the-workplace

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Since 2010, the semi-annual RxInformer clinical journal has been a trusted source of timely information and guidance for workers’ comp payers on how best to manage the care of injured worker claimants and plan for the challenges that lay ahead. The publication is an important part of Healthesystems’ proactive approach to advocating for quality care of injured workers while managing the costs associated with treatment.