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IACCIICD-10: U09.9
Long COVID
A distinct, multisystem chronic disease following SARS-CoV-2 infection, affecting neurological, cardiovascular, respiratory, and autoimmune functions.
US Prevalence
18.0M
estimated affected individuals
Annual New Cases
6.0M
new diagnoses per year
Diagnostic Delay
6 months
average time to diagnosis
Annual Cost / Patient
$9,000
national burden: $218B lost earnings (2023)
Key Facts
Critical data points clinicians and policymakers should know
- 18 million U.S. adults affected (5-7% prevalence)
- 25% report significant activity limitations
- Women 9.4% vs Men 5.5% prevalence
- Transgender population: 15.0% prevalence
- No single FDA-approved diagnostic test
Related Symptoms
21 documented symptoms across 9 body systems
5
neurological
- Brain Fog / Cognitive Dysfunction
- Headache
- Sleep Disruption
- Numbness / Tingling
- Memory Loss
3
systemic
- Chronic Fatigue
- Post-Exertional Malaise
- Fever / Chills
3
sensory
- Loss of Smell (Anosmia)
- Loss of Taste
- Tinnitus
2
musculoskeletal
- Joint Pain / Arthralgia
- Muscle Pain / Myalgia
2
cardiovascular
- Heart Palpitations
- Chest Pain
2
autonomic
- Dizziness / Lightheadedness
- Excessive Sweating
2
psychiatric
- Anxiety
- Depression
1
respiratory
- Shortness of Breath
1
gastrointestinal
- GI Distress (Nausea, Cramping)
Symptom Overlap with Other Conditions
Conditions that share symptoms with Long COVID, ranked by number of shared symptoms. High overlap can contribute to misdiagnosis and diagnostic delay.
Lyme Disease12 shared
57% of Long COVID symptomsChronic FatigueBrain Fog / Cognitive DysfunctionJoint Pain / ArthralgiaHeadacheDizziness / LightheadednessMuscle Pain / MyalgiaNumbness / TinglingFever / ChillsAnxietyDepressionMemory LossTinnitus
ME/CFS11 shared
52% of Long COVID symptomsChronic FatigueBrain Fog / Cognitive DysfunctionJoint Pain / ArthralgiaHeadachePost-Exertional MalaiseMuscle Pain / MyalgiaSleep DisruptionGI Distress (Nausea, Cramping)AnxietyDepressionMemory Loss
POTS10 shared
48% of Long COVID symptomsChronic FatigueBrain Fog / Cognitive DysfunctionHeadacheHeart PalpitationsDizziness / LightheadednessSleep DisruptionShortness of BreathChest PainAnxietyExcessive Sweating
Fibromyalgia7 shared
33% of Long COVID symptomsChronic FatigueBrain Fog / Cognitive DysfunctionJoint Pain / ArthralgiaMuscle Pain / MyalgiaSleep DisruptionNumbness / TinglingDepression
Alpha-gal Syndrome2 shared
10% of Long COVID symptomsHeart PalpitationsGI Distress (Nausea, Cramping)
Economic Impact
Published economic burden data for Long COVID
Per-Patient Annual Cost
$9,000-$11,646
JID 2024 (2024)
Lost Earnings (2023)
$218B
Brookings (2023)
Cumulative Burden
$3.7T
Harvard/Cutler 2022 (2022)
Absenteeism Cost
$6.4B/year
CIDRAP (2025)
Workforce Displacement
2-4M people
Brookings (2023)
Severity at a Glance
Comparative metrics placing Long COVID in context
Long COVID (this condition)18.0M
Fibromyalgia10.0M
ME/CFS3.3M
POTS3.0M
Lyme Disease2.0M
Alpha-gal Syndrome450.0K
Take Action
Use InvisibleSignal tools to screen, find care, or understand costs
Data sourced from CDC, Census Bureau (HPS), CMS, NIH, AHRQ, and peer-reviewed literature. Last updated August 2026.