Hospital Departments List: Names and Section Definitions

Author: Ian C. Langtree - Writer/Editor for Disabled World (DW)
Published: 6 Mar 2013 - Updated: 21 Aug 2026
Publication Type: Informative

Table of Contents:
Synopsis - Definition - Overview - FAQs - Insights, Updates - Related Content

Synopsis

This information presents a comprehensive guide to the departments and specialist units found within a modern hospital, explaining in plain terms what areas such as accident and emergency, cardiology, anesthetics, radiology, oncology and intensive care actually do for the people they treat. It gathers dozens of medical, support and administrative sections into a single reference, from clinical wards through to pharmacy, medical records, infection control and social work, so readers can see how a healthcare facility is organized. The material is helpful for patients, caregivers, seniors and people with disabilities who need to navigate an unfamiliar and often stressful system, because knowing which department handles a particular concern makes it easier to ask the right questions, communicate clearly with staff and understand referrals. Its authority rests on the breadth and accuracy of its definitions, which demystify hospital terminology and give practical footing to anyone facing appointments, admissions or ongoing specialist care.

At a Glance

• 1 - Radiotherapy, also called radiation therapy, treats cancer and other diseases with ionizing radiation. It works alongside oncology, which oversees chemotherapy and the wider care of tumors and blood disorders.
• 2 - The Central Sterile Services Department handles sterilization of medical equipment, devices and consumables. It is known by several names, including Sterile Processing Department and Central Supply.
• 3 - Occupational therapy, often shortened to OT, helps people with physical or mental impairments, including temporary ones, take part in meaningful daily activities. These span work, leisure, self-care and community life across both health and social care.
• 4 - Chaplaincy supports the spiritual and pastoral well-being of patients, relatives and staff, showing that hospital care extends beyond clinical treatment. Discharge lounges reflect the same idea, offering waiting patients comforts such as televisions, radio, puzzles, magazines and newspapers on the day they leave.

Topic Definition

Hospital Departments

Hospital Departments are the distinct clinical, diagnostic, support and administrative sections that together make up a working healthcare facility, each staffed and equipped to handle a particular type of patient need or operational task. On the clinical side they range from acute and emergency services through to specialties such as cardiology, neurology, oncology, maternity and orthopedics, while diagnostic areas like radiology, pathology and microbiology supply the testing that guides treatment. Beyond direct medical care sit the units that keep the institution running, including pharmacy, sterile services, medical records, infection control, finance and social work. How a given hospital is divided depends on its size and role, since a small district facility offers a narrower set of services than a large teaching or specialist center, but the underlying logic is consistent - grouping related expertise, staff and equipment so that patients are directed to the people best suited to help them.

Overview

Common Hospital Departments

Hospitals vary widely in their services and, therefore, in their departments. Hospitals may have acute services such as an emergency department or specialist trauma center, burn unit, surgery, or urgent care. These may be backed up by more specialist units such as cardiology or coronary care, intensive care units, neurology, cancer center, and obstetrics and gynecology.

Some hospitals will also have outpatient departments, while others may have chronic treatment units such as behavioral health services, dentistry, dermatology, psychiatric ward, rehabilitation services (Rehab), and physical therapy.

Common hospital support units include a dispensary or pharmacy, pathology, and radiology. On the non-medical side, there often are medical records departments and a release of information department. Nursing services are considered one of the most important aspects of distinguished medical care.

Definitions of Hospital Departments

Accident and emergency (A&E)

Also called Casualty Department, where you're likely to be taken if you have arrived in an ambulance or emergency.

Admissions

At the Admitting Department, the patient will be required to provide personal information and sign consent forms before being taken to the hospital unit or ward. If the individual is critically ill, then this information is usually obtained from a family member.

Anesthetics

Doctors in this department give anesthetic for operations and procedures. An anesthetic is a drug or agent that produces a complete or partial loss of feeling. There are three kinds of anesthetic: general, regional, and local.

Breast Screening

Screens women for breast cancer and is usually linked to the X-ray or radiology department.

Burn Center (Burn Unit or Burns Unit)

A hospital specializing in the treatment of burns. Burn centers often treat and recover patients with more severe burns.

Cardiology

Provides medical care to patients who have problems with their heart or circulation.

Central Sterile Services Department (CSSD)

(Sterile Processing Department (SPD) - Sterile Processing - Central Supply Department (CSD) - Central Supply) - A place in hospitals and other health care facilities that performs sterilization and other actions on medical equipment, devices, and consumables.

Chaplaincy

Chaplains promote the spiritual and pastoral well-being of patients, relatives, and staff.

Coronary Care Unit (CCU)

(Cardiac intensive care unit (CICU) - A hospital ward specialized in the care of patients with heart attacks, unstable angina, cardiac dysrhythmia and other cardiac conditions that require continuous monitoring and treatment.

Critical Care

Also called intensive care, this department is for seriously ill patients.

Diagnostic Imaging

Also known as X-Ray Department and/or Radiology Department.

Discharge Lounge

Patients who don't need to stay in a ward are transferred to the lounge on the day of discharge. Many hospitals now have discharge lounges with TVs, radio, puzzles, magazines, books, and newspapers.

Elderly Services

Covers and assists with a wide range of issues associated with seniors.

Finance Department

Performs all works related to budget and ideal use of the items of such budget. Also, it prepares payrolls and monthly wages and concludes contracts of operation and maintenance, and purchases. In addition, it makes available all amounts of money required for the procurement of all materials and equipment.

Gastroenterology

This department investigates and treats digestive and upper and lower gastrointestinal diseases.

General Services

Support Services include services provided by Departments such as Portering, Catering, Housekeeping, Security, Health & Safety, Switch, Laundry, and the management of facilities such as parking, baby tagging, access control, CCTV, etc.

General Surgery

Covers a wide range of types of surgery and procedures on patients.

Gynecology

Investigates and treats problems relating to the female urinary tract and reproductive organs, such as Endometriosis, infertility, and incontinence.

Hematology

These hospital services work with the laboratory. In addition, doctors treat blood diseases and malignancies related to the blood.

Health & Safety

The role of the occupational health and safety department is to promote and maintain the highest possible degree of health and safety for all employees, physicians, volunteers, students, and contractors, and actively participates in quality, safety and risk initiatives. Numerous health and safety issues associated with healthcare facilities include bloodborne pathogens and biological hazards, potential chemical and drug exposures, waste anesthetic gas exposures, respiratory hazards, ergonomic hazards from lifting and repetitive tasks, laser hazards, hazards associated with laboratories, and radioactive material and x-ray hazards. In addition to the medical staff, large healthcare facilities employ various trades with health and safety hazards. These include mechanical maintenance, medical equipment maintenance, housekeeping, food service, building and grounds maintenance, laundry, and administrative staff.

Intensive Care Unit (ICU)

(Intensive Therapy Unit, Intensive Treatment Unit (ITU), Critical Care Unit (CCU) - A special department of a hospital or health care facility that provides intensive treatment medicine and caters to patients with severe and life-threatening illnesses and injuries, which require constant, close monitoring and support from specialist equipment and medications.

Human Resources

Role is to provide a professional, efficient, and customer-focused service to managers and staff and, in turn, facilitate the delivery of a professional, efficient and customer focused service to patients.

Infection Control

Primarily responsible for conducting surveillance of hospital-acquired infections and investigating and controlling outbreaks or infection clusters among patients and health care personnel. The department calculates rates of hospital-acquired infections, collates antibiotic susceptibility data, performs analysis of aggregated infection data, and provides comparative data to national benchmarks over time.

Information Management

Meaningful information can be used in quality management, continuous quality improvement, and peer review. By improving the quality of information, core data can be provided for randomized clinical trials, outcomes research, and many studies.

Maternity

Maternity wards provide antenatal care, delivery of babies and care during childbirth, and postnatal support.

Medical Records

Includes a variety of types of "notes" entered over time by health care professionals, recording observations and administration of drugs and therapies, orders for the administration of drugs and therapies, test results, x-rays, reports, etc.

Microbiology

The microbiology department provides an extensive clinical service, including mycology, parasitology, mycobacteriology, a high-security pathology unit, and a healthcare-associated infection investigation unit, as well as routine bacteriology and an expanding molecular diagnostic repertoire.

Neonatal

Closely linked with the hospital maternity department, provides care and support for babies and their families.

Nephrology

Monitors and assesses patients with various kidney (renal) problems and conditions.

Neurology

A medical specialty dealing with disorders of the nervous system. Specifically, it deals with the diagnosis and treatment of all categories of disease involving the central, peripheral, and autonomic nervous systems, including their coverings, blood vessels, and all effector tissue, such as muscle. Includes the brain, spinal cord, and spinal cord injuries (SCI).

Nutrition and Dietetics

Dietitians and nutritionists provide specialist advice on diet for hospital wards and outpatient clinics.

Obstetrics/Gynecology

Specialist nurses, midwives, and imaging technicians provide maternity services such as antenatal and postnatal care, maternal and fetal surveillance, and prenatal diagnosis.

Occupational Therapy

Helps physically or mentally impaired people, including temporary disabilities, practice in the fields of both healthcare as well as social care. Often abbreviated as "OT," Occupational Therapy promotes health by enabling people to perform meaningful and purposeful occupations. These include (but are not limited to) work, leisure, self-care, and domestic and community activities. Occupational therapists work with individuals, families, groups, and communities to facilitate health and well-being through engagement or re-engagement in occupation.

Oncology

A branch of medicine that deals with cancer and tumors. A medical professional who practices oncology is an oncologist. The Oncology department provides treatments, including radiotherapy and chemotherapy, for cancerous tumors and blood disorders.

Ophthalmology

Ophthalmology is a branch of medicine that deals with the diseases and surgery of the visual pathways, including the eye, hairs, and areas surrounding the eye, such as the lacrimal system and eyelids. The term ophthalmologist is an eye specialist for medical and surgical problems. The Ophthalmology department provides ophthalmic eye-related services for both in and outpatients.

Orthopedics

Treats conditions related to the musculoskeletal system, including joints, ligaments, bones, muscles, tendons, and nerves.

Otolaryngology (Ear, Nose, and Throat)

The ENT Department provides comprehensive and specialized care covering both Medical and Surgical conditions related not just specifically to the Ear, Nose, and Throat, but also other areas within the Head and Neck region. It is often divided into sub-specialties dealing with only one part of the traditional specialty (ontology, rhinology, and laryngology).

Pain Management

Helps treat patients with severe long-term pain. Alternative pain relief treatments, such as acupuncture, nerve blocks, and drug treatment, are also catered for.

Patient Accounts

The Patient Accounts Department answers all billing questions and concerns, requests for itemized bills, and account balance inquiries. The patient accounts department also assists patients with insurance benefits for services rendered.

Patient Services

The Patient Services Manager is a source of information and can channel patient queries about hospital services to the appropriate departments.

Pharmacy

Responsible for drugs in a hospital, including purchasing, supply, and distribution.

Physiotherapy

Physiotherapists work through physical therapies such as exercise, massage, and manipulation of bones, joints and muscle tissues.

Purchasing & Supplies

Purchasing & Supplies Department is responsible for the procurement function of the hospital.

Radiology

The branch or specialty of medicine that deals with the study and application of imaging technology like x-ray and radiation to diagnosing and treating disease. The Department of Radiology is a highly specialized, full-service department that strives to meet all patient and clinician needs in diagnostic imaging and image-guided therapies.

Radiotherapy

Also called radiation therapy, is the treatment of cancer and other diseases with ionizing radiation.

Renal

Provides facilities for peritoneal dialysis. It helps facilitate home Hemodialysis.

Rheumatology

Rheumatologists care for and treat patients for musculoskeletal disorders such as bones, joints, ligaments, tendons, muscles, and nerves.

Sexual Health

Also known as genitourinary medicine - Provides advice, testing, and treatment for sexually transmitted infections, family planning care, pregnancy testing and advice, care and support for sexual and genital problems.

Social Work

Clinical social workers help patients and their families deal with the broad range of psychosocial issues and stresses related to coping with illness and maintaining health. Social workers, resource specialists, and advocates form a network that addresses families' challenges, increases access to health care and other human services and serves as a bridge between the hospital setting and a patient's family life, home, and community.

Urology

The urology department is run by consultant urology surgeons and investigates areas linked to kidney and bladder conditions.

Frequently Asked Questions

How do I know which hospital department I need to visit

Your general practitioner or a referral letter usually names the department, and if you are unsure the patient services team can direct your query to the right unit based on your symptoms or condition.

What is the difference between inpatient and outpatient departments

Inpatient departments care for people admitted to stay overnight or longer in a ward, while outpatient departments handle appointments, tests and treatments that let you go home the same day.

Do all hospitals have the same departments

No, the mix of departments varies with a hospital size and purpose, so a large teaching or specialist center offers far more units than a small district or community hospital.

What is the difference between a ward and a department

A department is a specialty or service area such as cardiology or radiology, while a ward is a physical space with beds where admitted patients receive nursing care, often linked to a particular department.

Who works in a hospital besides doctors and nurses

Hospitals employ many roles including pharmacists, radiographers, physiotherapists, dietitians, social workers, porters, catering and cleaning staff, administrators and maintenance trades who all support patient care.

What should I bring to a hospital appointment or admission

It helps to bring identification, insurance or referral paperwork, a current list of your medications, relevant medical history and contact details for a family member or caregiver.

How are hospital departments arranged to help people with mobility needs

Most facilities group related services and provide signage, lifts, accessible parking and wayfinding help, and staff can arrange portering or wheelchair assistance between departments when needed.

Can family members or caregivers accompany a patient into a department

Policies differ by unit, and while many wards and clinics welcome a companion, areas such as intensive care, imaging or surgery may limit access for safety and privacy reasons.

Insights, Analysis, and Developments

Editorial Note: A hospital can feel like a maze of unfamiliar labels at the very moment a person is least equipped to decode them, which is why a reference like this earns its keep - it quietly closes the gap between medical shorthand and everyday understanding. Worth noting is how many listed sections never involve a scalpel or a stethoscope, from finance and human resources to purchasing, catering, portering and information management, a reminder that patient care depends on a large support network operating behind the scenes. For seniors, family caregivers and people managing long-term or complex conditions, recognizing the difference between, say, nephrology and neurology, or between critical care and coronary care, can shorten the path to the right clinician and reduce the anxiety that comes from not knowing where to turn.

Author Credentials: Ian is the founder and Editor-in-Chief of Disabled World, a leading resource for news and information on disability issues. With a global perspective shaped by years of travel and lived experience, Ian is a committed proponent of the Social Model of Disability, a transformative framework developed by disabled activists in the 1970s that emphasizes dismantling societal barriers rather than focusing solely on individual impairments. His work reflects a deep commitment to disability rights, accessibility, and social inclusion. To learn more about Ian's background, expertise, and accomplishments, visit his full biography.