What Does Hx Mean in Medical Terms?

Hx stands for history. Past medical information about a patient.

Where you will see Hx

You will most often see Hx in medical charts and clinical notes.

Example

A chart note might use “Hx” as shorthand for history when documenting a patient's care.

Related abbreviations

• A&O x4 — alert and oriented times four (person place time situation)
• a.m. — ante meridiem (morning)
• A/P — assessment and plan
• AC — anterior chamber (eye)
• ACG — angle-closure glaucoma
• ACIOL — anterior chamber intraocular lens
• ACR — American College of Radiology (appropriateness context)
• acuity — patient acuity (severity level)

Browse the full Medical Abbreviations guide — 5,715 entries, searchable A–Z and by specialty.