Complete List of Hospital Departments & Services (2026-27 Edition)

A complete list of hospital departments and services is the starting point for planning any hospital, from a 25-bed facility in a district town to a large teaching hospital in Lahore or Karachi. Before an architect draws a single wall, the owner and clinical team need to agree which departments the hospital will have, what each one does, and how they connect. This 2026-27 edition lists the main hospital departments in Pakistan, groups them by function, and adds the design and construction notes that matter for each group.

How Hospital Departments Are Grouped

Every hospital is different, but departments usually fall into eight groups. Thinking in groups helps planners keep related departments together, separate public areas from clinical areas, and plan the routes that patients, staff, supplies and waste will use.

1. Emergency and Outpatient Departments

Emergency Department (ED)

• Ambulance entrance and separate walk-in entrance
• Triage area
• Resuscitation bays and trauma rooms
• Treatment cubicles and minor procedure rooms
• Isolation room for infectious patients
• Observation beds, waiting and registration

The ED needs direct links to imaging, operating theatres and ICU. ACCO’s article on designing emergency departments explains layout principles.

Outpatient Department (OPD)

• Consultation and examination rooms by speciality
• Waiting areas sized for patients and families
• Minor procedure and dressing rooms
• Outpatient pharmacy and sample collection

OPDs handle the highest footfall, so they are best placed near the main entrance with easy access to diagnostics.

2. Inpatient Departments

• General wards (medical and surgical)
• Private and semi-private rooms
• VIP or executive suites where the business model needs them
• Isolation rooms, including negative-pressure rooms for airborne infections
• Nurse stations, clean and dirty utility rooms, and treatment rooms

Ward planning balances privacy, observation and walking distance for nurses. Every ward needs hand-wash stations, medical gas outlets at each bed, and clear separation of clean and soiled supplies.

3. Diagnostic and Imaging Departments

Laboratory services

• Sample reception
• Haematology and biochemistry
• Microbiology
• Histopathology
• Blood bank and transfusion services
• Molecular diagnostics where offered

Radiology and imaging

• X-ray
• Ultrasound
• CT scan
• MRI
• Mammography
• Fluoroscopy and interventional radiology in larger hospitals

Imaging rooms need radiation shielding (or magnetic and RF shielding for MRI), reinforced floors, stable power and dedicated cooling. See ACCO’s guide to diagnostic and imaging department planning.

4. Surgical and Critical Care Departments

Operation Theatre (OT) complex

• General, orthopaedic, gynaecology, cardiac and neuro theatres depending on services
• Pre-operative holding and recovery (PACU)
• Scrub, anaesthesia and sterile store rooms
• Staff change rooms with controlled entry

Theatres are kept at positive pressure with HEPA-filtered air and high air-change rates, and they need medical gases, isolated power and seamless hygienic finishes.

Intensive care units

• General ICU
• Cardiac care unit (CCU)
• Neonatal ICU (NICU)
• Paediatric ICU (PICU)
• High dependency unit (HDU)

ICUs have the densest services of any area: multiple gas outlets per bed, high electrical loads, monitoring networks and isolation rooms.

Other procedure areas

• Day surgery unit
• Endoscopy suite
• Cardiac catheterisation laboratory
• Dialysis unit

5. Specialist Clinical Departments

• Obstetrics and gynaecology, including labour and delivery suites
• Paediatrics
• Cardiology
• Neurology and neurosurgery
• Orthopaedics and physiotherapy
• Oncology, chemotherapy day care and radiotherapy
• Nephrology
• ENT, ophthalmology and dentistry
• Dermatology
• Psychiatry and mental health

Each specialist department adds particular requirements. Radiotherapy, for example, needs heavily shielded bunkers, while labour suites need close links to neonatal care and theatres. ACCO’s guide to women and child healthcare departments covers maternity and paediatric planning.

6. Clinical Support Departments

• Central Sterile Services Department (CSSD)
• Pharmacy (inpatient, outpatient and stores)
• Biomedical engineering
• Infection prevention and control office
• Medical records and health information
• Mortuary

CSSD should have a one-way flow from dirty reception through washing and packing to sterile storage, with a direct link to the OT complex.

7. Facility Support Services

• Kitchen and dietary services
• Laundry and linen
• Medical gas plant (oxygen, vacuum, medical air)
• Electrical substation, generators and UPS
• HVAC plant, water storage and treatment
• Clinical and general waste storage
• Stores, workshops and housekeeping

These services are often under-planned, yet they keep the hospital running. ACCO’s guide to medical gas pipeline systems covers one of the most critical.

8. Administration and Staff Areas

• Reception, admissions and billing
• Management offices and meeting rooms
• IT and server rooms
• Staff change rooms, rest rooms and on-call rooms
• Training rooms, library and teaching spaces in teaching hospitals
• Prayer rooms and cafeteria

How Departments Connect: Key Adjacencies

A list of departments is only half the brief. The other half is how they relate to each other. Good hospital planning puts departments that share patients, staff or equipment close together, and keeps incompatible activities apart. The most important relationships in most hospitals are:

• Emergency to imaging, theatres and ICU. Critically ill patients should travel the shortest possible route, ideally on the same floor or by a dedicated bed lift.
• Theatres to ICU, recovery and CSSD. Patients move from theatre to recovery or ICU, and instruments move between theatres and CSSD many times a day.
• Labour suite to obstetric theatre and NICU. Emergency caesarean sections and newborn resuscitation depend on fast transfer.
• Outpatients to diagnostics and pharmacy. Most outpatients need tests or medicines, so these should be easy to find from the clinics.
• Kitchen, laundry and waste to service routes. These should reach wards by service lifts and corridors, away from public areas.

Planners often show these links on an adjacency diagram before drawing floor plans. It is the simplest way to check that the building will work clinically.

Services Every Department Depends On

Behind every department sit engineering systems that the public never sees. Each department in the list above needs a defined level of ventilation, power, medical gases, water, data and fire protection. An ICU may need several oxygen, vacuum and medical air outlets per bed, uninterrupted power and a dedicated air-handling system, while an outpatient clinic needs far less. Recording these needs in room data sheets at the start allows the MEP engineers to size plant rooms, risers and shafts correctly, which is far cheaper than enlarging them later.

Which Departments Does Your Hospital Need?

Not every hospital needs every department. The list depends on the level of care and the business plan.

From Department List to Hospital Design

Common Planning Mistakes

• Adding departments late, after the building form is fixed
• Forgetting support spaces such as clean and dirty utility rooms, stores and staff areas
• Placing the CSSD or imaging far from the departments they serve
• No space reserved for future departments or equipment
• Undersizing plant rooms, risers and medical gas stores

Frequently Asked Questions

Conclusion

A clear, agreed list of hospital departments and services is the foundation of a well-planned hospital. Group departments by function, match them to the level of care and business plan, and turn the list into a Schedule of Accommodation before design starts. ACCO (Ahmed Construction Company), Lahore, helps owners move from department list to finished building through its hospital design and construction services.