Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/2/2025

Essential Components of the History of Present Illness (HPI)

Core Elements of the HPI

  • The American College of Physicians recommends documenting the onset and chronology of symptoms, including when they began, their progression over time, and any patterns or changes in intensity 1
  • The American Heart Association suggests identifying the location of symptoms and if they radiate or move 2
  • The Infectious Diseases Society of America recommends recording the patient's description of how symptoms feel, such as sharp, dull, or burning 1
  • The American College of Cardiology advises assessing the severity of symptoms using scales or by asking how symptoms impact daily activities 2
  • The Centers for Disease Control and Prevention recommends documenting the duration of symptoms and how long they last when they occur 1
  • The National Institutes of Health suggests noting activities or situations when symptoms occur or worsen 1
  • The American Academy of Family Physicians recommends identifying what makes symptoms better or worse, including medications or interventions 1
  • The American College of Emergency Physicians advises recording other symptoms that occur simultaneously 2

Medication and Treatment History

  • The American Medical Association recommends documenting all prescription drugs, over-the-counter medications, supplements, and herbal remedies 1
  • The Centers for Disease Control and Prevention advises asking about hypersensitivity reactions to medications 1
  • The National Institutes of Health recommends inquiring about prior treatments for the current condition and their effectiveness 1

Past Medical History

  • The American Heart Association suggests documenting history of conditions like heart failure, renal insufficiency, diabetes, or lung disease 2
  • The American Diabetes Association recommends asking about past hospitalizations related to the current complaint 6
  • The Infectious Diseases Society of America advises recording relevant surgical procedures 1
  • The Centers for Disease Control and Prevention recommends documenting vaccination history, particularly for influenza and pneumococcal vaccines 2

Social and Environmental Factors

  • The American College of Physicians recommends asking about tobacco, alcohol, and recreational drug use 1
  • The National Institute for Occupational Safety and Health suggests inquiring about work-related exposures that may contribute to symptoms 7
  • The American Lung Association advises assessing living conditions that might impact health 7
  • The American Cancer Society recommends identifying support systems and resources available to the patient 5

Family History

  • The American Heart Association suggests asking about family history of conditions related to the presenting complaint 6
  • The American College of Medical Genetics recommends documenting the age at which family members developed relevant conditions 1

Special Considerations for Specific Populations

  • The American Geriatrics Society recommends paying particular attention to functional status, cognitive function, and fall risk in elderly patients 5
  • The American Diabetes Association advises focusing on changes from baseline and disease-specific symptoms in patients with chronic conditions 2
  • The National Institute on Deafness and Other Communication Disorders recommends using appropriate communication aids or interpreters as needed for patients with communication barriers 5

Documentation Best Practices

  • The American Medical Association recommends documenting pertinent negatives, including important symptoms that are absent 1
  • The Joint Commission advises using clear language that can be understood by other providers 1