What is the Medical Glossary?

Browse our complete A-Z glossary of medical terms, drugs, conditions, procedures, hospitals, and healthcare organizations.

What healthcare terms are defined in the MedicalRecords.com glossary?

The MedicalRecords.com glossary covers medical records terminology, healthcare IT acronyms, insurance terms, clinical vocabulary, regulatory terms (HIPAA, HITECH), and EHR/EMR industry definitions. It is designed for patients, healthcare professionals, and technology buyers seeking clear explanations.

What does EMR stand for in healthcare?

EMR stands for Electronic Medical Record. It is a digital version of the paper charts kept in a clinician's office, containing a patient's medical and treatment history from a single practice. Unlike EHRs (Electronic Health Records), EMRs are not typically designed to share information outside the practice.

What is HIPAA and why does it matter for medical records?

HIPAA (Health Insurance Portability and Accountability Act) is a federal law that establishes standards to protect sensitive patient health information. Under HIPAA, patients have the right to access and obtain copies of their medical records, and covered entities must respond to records requests within 30 days.

What is the difference between an EHR and an EMR?

An EMR (Electronic Medical Record) is a digital record used within a single practice. An EHR (Electronic Health Record) is designed to be shared across multiple healthcare settings — different physicians, hospitals, labs, and specialists — giving a broader view of a patient's care history.

Medical Glossary | A-Z Entity Directory

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ESHA, Inc. Data Breach (2024)

Event

ESHA, Inc. data breach in TX affecting 76,922 individuals. Reported 2024-11-15.

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ESO Solutions, Inc. Data Breach (2023)

Event

ESO Solutions, Inc. data breach in TX affecting 2,700,000 individuals. Reported 2023-12-18.

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East Central Missouri Behavioral Health Services, Inc. Data Breach (2024)

Event

East Central Missouri Behavioral Health Services, Inc. data breach in MO affecting 20,000 individuals. Reported 2024-11-21.

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East Houston Medicine and Pediatrics Clinic Data Breach (2023)

Event

East Houston Medicine and Pediatrics Clinic data breach in TX affecting 13,184 individuals. Reported 2023-07-13.

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East River Medical Imaging, PC Data Breach (2023)

Event

East River Medical Imaging, PC data breach in NY affecting 605,809 individuals. Reported 2023-11-22.

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El Centro Del Barrio d/b/a CentroMed Data Breach (2023)

Event

El Centro Del Barrio d/b/a CentroMed data breach in TX affecting 350,000 individuals. Reported 2023-08-11.

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Electrostim Medical Services, Inc. d/b/A EMSI Data Breach (2023)

Event

Electrostim Medical Services, Inc. d/b/A EMSI data breach in FL affecting 542,990 individuals. Reported 2023-12-28.

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Elgon Information Systems Data Breach (2023)

Event

Elgon Information Systems data breach in MA affecting 31,248 individuals. Reported 2023-06-02.

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Employee Group Insurance Benefits Plan of Acuity Brands, Inc. Data Breach (2022)

Event

Employee Group Insurance Benefits Plan of Acuity Brands, Inc. data breach in GA affecting 20,849 individuals. Reported 2022-12-06.

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Endocrine and Psychiatry Center Data Breach (2023)

Event

Endocrine and Psychiatry Center data breach in TX affecting 28,531 individuals. Reported 2023-11-14.

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Endue Software Data Breach (2025)

Event

Endue Software data breach in ME affecting 118,028 individuals. Reported 2025-04-11.

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EngageMED, Inc Data Breach (2024)

Event

EngageMED, Inc data breach in AR affecting 249,297 individuals. Reported 2024-08-30.

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Enzo Clinical Labs, Inc. Data Breach (2023)

Event

Enzo Clinical Labs, Inc. data breach in NY affecting 2,470,000 individuals. Reported 2023-06-05.

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Epic Management LLC Data Breach (2022)

Event

Epic Management LLC data breach in TN affecting 10,862 individuals. Reported 2022-11-14.

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Episource, LLC Data Breach (2025)

Event

Episource, LLC data breach in CA affecting 6,725,572 individuals. Reported 2025-06-06.

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Escambia Community Clinics, Inc. dba Community Health Northwest Florida Data Breach (2025)

Event

Escambia Community Clinics, Inc. dba Community Health Northwest Florida data breach in FL affecting 143,969 individuals. Reported 2025-02-03.

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Esse Health Data Breach (2025)

Event

Esse Health data breach in MO affecting 23,671 individuals. Reported 2025-06-20.

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Excellent Home Care Services, LLC Data Breach (2025)

Event

Excellent Home Care Services, LLC data breach in NY affecting 16,278 individuals. Reported 2025-12-17.

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Excelsior Orthopaedics, LLC Data Breach (2024)

Event

Excelsior Orthopaedics, LLC data breach in NY affecting 292,913 individuals. Reported 2024-08-21.

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Expert MRI Data Breach (2025)

Event

Expert MRI data breach in CA affecting 209,560 individuals. Reported 2025-10-31.

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Eye Physicians of Central Florida, PLLC, a division of Florida Pediatric Associates, LLC Data Breach (2023)

Event

Eye Physicians of Central Florida, PLLC, a division of Florida Pediatric Associates, LLC data breach in FL affecting 31,189 individuals. Reported 2023-12-22.

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EyeCare Partners, LLC, including The Ophthalmology Group, Ophthalmology Consultants, and Ophthalmology Associates. Data Breach (2026)

Event

EyeCare Partners, LLC, including The Ophthalmology Group, Ophthalmology Consultants, and Ophthalmology Associates. data breach in MO affecting 17,110 individuals. Reported 2026-02-03.

Medical Glossary

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E

ESHA, Inc. Data Breach (2024)

ESO Solutions, Inc. Data Breach (2023)

East Central Missouri Behavioral Health Services, Inc. Data Breach (2024)

East Houston Medicine and Pediatrics Clinic Data Breach (2023)

East River Medical Imaging, PC Data Breach (2023)

El Centro Del Barrio d/b/a CentroMed Data Breach (2023)

Electrostim Medical Services, Inc. d/b/A EMSI Data Breach (2023)

Elgon Information Systems Data Breach (2023)

Employee Group Insurance Benefits Plan of Acuity Brands, Inc. Data Breach (2022)

Endocrine and Psychiatry Center Data Breach (2023)

Endue Software Data Breach (2025)

EngageMED, Inc Data Breach (2024)

Enzo Clinical Labs, Inc. Data Breach (2023)

Epic Management LLC Data Breach (2022)

Episource, LLC Data Breach (2025)

Escambia Community Clinics, Inc. dba Community Health Northwest Florida Data Breach (2025)

Esse Health Data Breach (2025)

Excellent Home Care Services, LLC Data Breach (2025)

Excelsior Orthopaedics, LLC Data Breach (2024)

Expert MRI Data Breach (2025)

Eye Physicians of Central Florida, PLLC, a division of Florida Pediatric Associates, LLC Data Breach (2023)

EyeCare Partners, LLC, including The Ophthalmology Group, Ophthalmology Consultants, and Ophthalmology Associates. Data Breach (2026)