


Huntington's disease is a fully penetrant autosomal-dominant neurodegenerative disorder in which neuropsychiatric and cognitive symptoms typically precede motor onset by 10 to 15 years. Late-onset HD — defined as symptom onset at 60 or older — now accounts for up to one-third of new diagnoses, and 31 to 53% of those patients have no known family history. That combination makes misattribution common: late-onset presentations are frequently diagnosed as Parkinson disease, vascular parkinsonism, or Alzheimer disease before the correct diagnosis is established. For a condition with no disease-modifying therapy, accurate recognition and proactive symptom management are the primary levers available to clinical teams.
AAVBC's Huntington's Disease Quick Reference Guide provides primary care clinicians with a structured reference for recognizing, documenting, and managing HD across its full clinical spectrum. It covers early psychiatric and cognitive recognition, late-onset presentation patterns, ICD-10 coding for motor and neuropsychiatric manifestations, severity-specific NCD coding, genetic testing documentation, aspiration risk management, and MEAT documentation standards — grounded in current HDSA and EAN guideline evidence, and oriented toward the sustained primary care role this condition requires.
AAVBC’s Deep-Dive series offers a comprehensive, structured analysis of Huntington's disease — moving far beyond quick-reference essentials. These guides provide an integrated review of epidemiology, diagnostic strategy, staging, coding logic, MEAT-aligned documentation examples, treatment guidelines, review vulnerabilities, and cost-utilization considerations. The Deep-Dive combines evidence-informed clinical guidance with practical operational tools to support a deeper understanding of disease complexity and provide multidisciplinary teams with strategies to thrive within value-based frameworks.


Huntington's disease is a fully penetrant autosomal-dominant neurodegenerative disorder in which neuropsychiatric and cognitive symptoms typically precede motor onset by 10 to 15 years. Late-onset HD — defined as symptom onset at 60 or older — now accounts for up to one-third of new diagnoses, and 31 to 53% of those patients have no known family history. That combination makes misattribution common: late-onset presentations are frequently diagnosed as Parkinson disease, vascular parkinsonism, or Alzheimer disease before the correct diagnosis is established. For a condition with no disease-modifying therapy, accurate recognition and proactive symptom management are the primary levers available to clinical teams.
AAVBC's Huntington's Disease Quick Reference Guide provides primary care clinicians with a structured reference for recognizing, documenting, and managing HD across its full clinical spectrum. It covers early psychiatric and cognitive recognition, late-onset presentation patterns, ICD-10 coding for motor and neuropsychiatric manifestations, severity-specific NCD coding, genetic testing documentation, aspiration risk management, and MEAT documentation standards — grounded in current HDSA and EAN guideline evidence, and oriented toward the sustained primary care role this condition requires.
AAVBC’s Deep-Dive series offers a comprehensive, structured analysis of Huntington's disease — moving far beyond quick-reference essentials. These guides provide an integrated review of epidemiology, diagnostic strategy, staging, coding logic, MEAT-aligned documentation examples, treatment guidelines, review vulnerabilities, and cost-utilization considerations. The Deep-Dive combines evidence-informed clinical guidance with practical operational tools to support a deeper understanding of disease complexity and provide multidisciplinary teams with strategies to thrive within value-based frameworks.