Code Grey: Hospital Emergency Codes Explained

In healthcare facilities, efficient emergency response protocols are essential; notably, the Hospital Emergency Codes system includes various alerts like Code Red for fire and Code Blue for cardiac arrest. Security threats such as violent or combative individuals necessitating immediate intervention are represented by code grey. The Joint Commission mandates that healthcare organizations implement standardized emergency codes to ensure a coordinated response among staff members. Effective training in de-escalation techniques and rapid response team activation are crucial elements in managing these situations effectively in facilities such as Mayo Clinic.

Image taken from the YouTube channel Neso Academy , from the video titled Introduction to Gray Code .

Code Grey. The term itself evokes a sense of urgency and potential chaos within the seemingly sterile and controlled environment of a healthcare facility. Understanding what Code Grey signifies, and why it demands meticulous preparedness, is paramount for ensuring the safety and well-being of everyone within those walls.

Defining Code Grey: More Than Just a Simple Alarm

Code Grey is more than a mere announcement over the hospital's public address system. It represents a facility's designated signal for an incident of aggression or violence.

This can range from a disruptive and verbally abusive patient to a physical assault, or even an active shooter situation. A comprehensive definition must encompass the spectrum of threats that can compromise the safety of a healthcare environment.

A clear and universally understood definition is crucial to activate the appropriate response protocols swiftly and effectively. Ambiguity or misinterpretation can lead to delays and potentially disastrous consequences.

The Imperative of Preparedness: A Proactive Stance

Hospitals and healthcare facilities, by their very nature, are vulnerable environments. They are open 24/7, serve a diverse population, and often deal with individuals experiencing heightened emotional states due to illness, injury, or substance abuse.

Preparedness is not optional; it is an ethical and legal obligation.

Well-defined protocols are the cornerstone of effective Code Grey management. These protocols must outline clear roles and responsibilities for all staff members, specify communication channels, and detail procedures for de-escalation, containment, and evacuation.

Training is equally essential. All hospital staff – from nurses and doctors to administrative personnel and security officers – must be thoroughly trained in Code Grey procedures.

This includes de-escalation techniques, self-defense strategies, and the proper use of restraints. Regular drills and simulations are vital to reinforce training and identify areas for improvement.

Proactive measures also play a critical role in preventing Code Grey incidents. This includes implementing security measures such as access control, surveillance systems, and visitor screening.

It also necessitates fostering a culture of awareness, where staff are encouraged to report suspicious behavior or potential threats. A proactive approach aims to mitigate risks before they escalate into full-blown crises.

Scope of Discussion: Charting a Course for Comprehensive Analysis

This article is dedicated to providing a comprehensive understanding of Code Grey response in healthcare settings. Our focus will be on the key elements of an effective response strategy. This involves the individuals involved, the specific actions they must take, and the broader organizational structures and regulations that govern these actions.

We will delve into the roles and responsibilities of security personnel, hospital staff, patients, visitors, and external emergency responders. We will examine the essential procedures and protocols for de-escalation, restraint, lockdown, evacuation, and communication.

Finally, we will explore the relevant organizational and regulatory considerations that healthcare facilities must adhere to. By examining these critical components, we aim to provide actionable insights for improving Code Grey preparedness and response capabilities.

Key Stakeholders and Their Roles in a Code Grey Response

The urgency of a Code Grey situation necessitates a clearly defined understanding of who is involved and what their specific responsibilities are. Effective coordination hinges on knowing the roles each stakeholder plays. From security personnel to mental health professionals, a well-rehearsed and collaborative response is vital for mitigating risk and ensuring safety. This section delineates those roles, providing a framework for optimized emergency response.

Security Personnel/Hospital Security: The First Line of Defense

Security personnel are, in most cases, the primary responders to a Code Grey event. Their presence and training are crucial for swiftly assessing the situation and initiating appropriate interventions.

Their responsibilities encompass a wide range of actions, including:

• Threat Assessment: Rapidly evaluating the nature and severity of the threat. This includes identifying the type of aggression, potential weapons, and the number of individuals involved.
• Intervention Techniques: Implementing de-escalation strategies, physical intervention (when necessary and within legal and ethical guidelines), and crowd control measures.
• Coordination with External Agencies: Communicating with and coordinating the arrival of local law enforcement, emergency medical services, and other relevant agencies.
• Maintaining Order: Ensuring a safe perimeter and preventing further escalation of the incident.

Hospital Staff: Awareness and Support

All hospital staff members, regardless of their specific roles, must be familiar with Code Grey protocols. This includes recognizing early warning signs of potential aggression and understanding the appropriate steps to take.

The Importance of Training

Regular training programs are crucial for equipping staff with the necessary skills and knowledge to respond effectively. These programs should cover topics such as:

• De-escalation techniques.
• Emergency communication protocols.
• Evacuation procedures.
• Basic self-defense measures.

Support Roles During a Code Grey

During a Code Grey event, staff members can assist by:

• De-escalation Efforts: Employing verbal de-escalation techniques to calm agitated individuals (only when safe to do so).
• Evacuation Procedures: Assisting in the safe and orderly evacuation of patients and visitors.
• Providing Patient Care: Continuing to provide essential patient care while maintaining personal safety and situational awareness.
• Communication: Relaying important information to security personnel and other responders.

Patients: Protecting the Vulnerable

Patients are often the most vulnerable population during a Code Grey event. Ensuring their safety and well-being is of paramount importance.

Safety Measures for Patients

Hospitals should have procedures in place to protect patients, including:

• Relocation: Moving patients to secure areas within the facility.
• Protection within the Facility: Implementing lockdown procedures to secure patient rooms and prevent access by unauthorized individuals.
• Communication Protocols: Providing clear and concise communication to patients about the situation and what they should do to stay safe.
• Prioritization: Ensuring that patients with the most critical needs are prioritized during evacuation or relocation efforts.

Visitors: Guiding and Assisting

Visitors present unique challenges during a Code Grey event. They may be unfamiliar with the facility and emergency procedures.

Visitor Safety

Effective communication and guidance are essential for ensuring their safety:

• Evacuation Procedures: Clearly communicating evacuation routes and procedures to visitors.
• Assistance: Providing assistance to visitors who may need help evacuating or finding safe shelter.
• Clear Communication: Using clear and concise language to convey instructions and ensure their cooperation.

The Aggressor/Threat: Assessment and Containment

Managing the aggressor or threat is a critical aspect of Code Grey response. The primary goals are to assess the threat level and contain the aggressor to minimize harm to others.

Key Strategies

• Rapid Assessment: Quickly determining the nature and severity of the threat, including any weapons involved and potential targets.
• Containment: Implementing strategies to isolate the aggressor and prevent them from accessing other areas of the facility.
• De-escalation (if possible): Attempting to de-escalate the situation through verbal communication (only when safe to do so).
• Coordination with Law Enforcement: Providing law enforcement with accurate and timely information about the aggressor's location, behavior, and any weapons involved.

Emergency Response Teams (ERTs): Specialized Intervention

ERTs are specialized teams trained to respond to a variety of emergencies, including Code Grey events. Their expertise in de-escalation and physical intervention makes them valuable assets during a crisis.

ERT Composition

ERTs typically include:

• Security personnel.
• Nurses.
• Mental health professionals.
• Other trained staff members.

Activation

The activation process for the ERT should be clearly defined, including:

• Trigger Events: Specific events that trigger the activation of the ERT.
• Communication Channels: Designated communication channels for requesting ERT assistance.
• Response Time: Expected response time for the ERT to arrive on scene.

ERT Functions

Once activated, the ERT is responsible for:

• Assessing the situation.
• Implementing de-escalation techniques.
• Providing physical intervention (when necessary and within legal and ethical guidelines).
• Coordinating with other responders.

Hospital Emergency Management Department/Coordinator: Planning and Oversight

The Hospital Emergency Management Department plays a crucial role in planning, coordinating, and overseeing the hospital's emergency response efforts. This includes developing and implementing Code Grey protocols.

Responsibilities

• Developing Emergency Response Plans: Creating comprehensive emergency response plans that address a variety of potential threats, including Code Grey events.
• Implementing Emergency Response Plans: Training staff on emergency response procedures and conducting regular drills to test the effectiveness of the plans.
• Maintaining Emergency Response Plans: Regularly reviewing and updating emergency response plans to ensure they remain current and effective.
• Resource Management: Managing the hospital's emergency resources, including equipment, supplies, and personnel.

Local Law Enforcement/Police: External Support

In situations involving significant threats of violence, local law enforcement should be contacted. Their expertise and resources can be invaluable in resolving the situation safely.

Involving Law Enforcement

Law enforcement should be contacted when:

• An active shooter is present.
• There is a significant threat of violence.
• A crime has been committed.

Coordination

Effective coordination with law enforcement is essential.

This includes:

• Providing them with accurate and timely information about the situation.
• Granting them access to the facility.
• Following their instructions.

Mental Health Professionals/Crisis Intervention Teams: De-escalation and Support

Mental health professionals and crisis intervention teams possess specialized skills in de-escalating individuals in crisis. Their involvement can be crucial in preventing violence and ensuring the safety of all involved.

Capabilities

• Assessment: Assessing the mental state of individuals exhibiting aggressive behavior.
• De-escalation: Utilizing verbal and non-verbal techniques to calm agitated individuals and prevent escalation.
• Support: Providing support to victims, staff, and families following a Code Grey event.

Risk Management Department: Proactive Prevention

The Risk Management Department plays a proactive role in identifying and mitigating potential threats within the healthcare facility.

Risk Management Activities

• Identifying Risks: Conducting regular risk assessments to identify potential vulnerabilities.
• Mitigating Risks: Developing and implementing strategies to mitigate identified risks, such as enhanced security measures or training programs.
• Incident Investigation: Investigating Code Grey events to identify root causes and implement corrective actions.
• Policy Development: Developing and reviewing policies related to security and violence prevention.

By understanding the specific roles and responsibilities of each stakeholder, healthcare facilities can create a more coordinated and effective Code Grey response, ultimately leading to a safer environment for patients, staff, and visitors.

Essential Procedures and Protocols for Code Grey Response

Following a clear understanding of roles, the effectiveness of a Code Grey response hinges on the meticulous implementation of well-defined procedures and protocols. These established guidelines serve as the backbone of a coordinated and safe reaction, ensuring that all personnel are equipped to handle the situation with competence and precision. From de-escalation tactics to lockdown implementation, these protocols are crucial for protecting patients, staff, and visitors during a crisis.

De-escalation Techniques: The First Line of Defense

De-escalation is often the first and most crucial step in managing a potential Code Grey situation. Effective de-escalation can prevent escalation and potential violence, making it a critical skill for all healthcare staff. This requires a combination of verbal and non-verbal strategies, all aimed at calming the individual and diffusing tension.

Verbal Strategies: The Power of Words

Verbal de-escalation involves using specific communication techniques to reduce a person's agitation and prevent aggression. Active listening is paramount, requiring staff to fully concentrate on what the individual is saying, demonstrating empathy, and acknowledging their feelings. Using clear, simple language and avoiding jargon can help the person understand what is being communicated. It is essential to maintain a calm and respectful tone, avoiding any language that could be perceived as accusatory or confrontational.

Non-Verbal Communication: Actions Speak Louder

Non-verbal cues play a significant role in de-escalation efforts. Body language should be open and non-threatening, maintaining a safe distance while avoiding any gestures that could be interpreted as aggressive. Maintaining eye contact, nodding to show understanding, and using a relaxed posture can all contribute to a more calming interaction. The tone of voice is also crucial; speaking slowly and softly can help de-escalate a tense situation.

Restraints (Physical and Chemical): When Necessary

While de-escalation should always be the first approach, there are situations where restraints become necessary to ensure the safety of the patient and others. The use of restraints, whether physical or chemical, must adhere to strict guidelines and ethical considerations. Restraints should only be used as a last resort, when all other de-escalation techniques have failed, and there is an imminent risk of harm.

Guidelines: Ethical and Legal Considerations

The use of restraints must be justified by a clear and present danger, with a physician's order obtained as soon as possible. Regular monitoring of the individual is essential, ensuring their physical and psychological well-being while restrained. Alternatives to restraints should always be considered and documented. The type of restraint used should be the least restrictive option necessary to ensure safety.

Documentation: A Crucial Component

Thorough documentation is paramount when restraints are used. The reason for restraint, the type of restraint applied, the time of application, and the ongoing monitoring of the individual must be meticulously recorded. This documentation serves as a critical record of the decision-making process and ensures accountability. Any adverse events or complications that arise during the restraint period must also be documented promptly.

Hospital Policies and Procedures: The Foundation of Response

Effective Code Grey response relies on well-defined hospital policies and procedures. These documents provide a framework for staff to follow, ensuring a consistent and coordinated approach to managing aggressive or violent situations. Clear and accessible policies are essential for all staff members.

Standard Operating Procedures (SOPs): A Step-by-Step Guide

Standard Operating Procedures (SOPs) should outline the specific steps to be taken when responding to a Code Grey, including contact information for relevant personnel and departments. These protocols should cover various scenarios, such as dealing with an agitated patient, managing a violent visitor, or responding to an active shooter situation. SOPs should be readily available to all staff, both in electronic and physical formats.

Regular Review: Staying Current and Effective

Hospital policies and procedures should be regularly reviewed and updated to reflect changes in best practices, regulatory requirements, and the evolving needs of the facility. This review process should involve input from various stakeholders, including security personnel, nurses, physicians, and risk management. Regular updates ensure that the policies remain relevant and effective in addressing potential threats.

Lockdown Procedures: Securing the Environment

Lockdown procedures are critical for containing a threat and protecting individuals within the facility. Implementing a lockdown involves securing doors, restricting access to specific areas, and communicating the lockdown status to staff, patients, and visitors. A swift and effective lockdown can minimize the potential for harm during a Code Grey event.

Implementation: A Rapid Response

The implementation of a lockdown should be initiated immediately upon recognizing a significant threat. This involves activating the hospital's lockdown protocol, which may include announcing a Code Grey over the public address system and securing all entrances and exits. Staff should be trained to quickly and efficiently secure their areas, ensuring that doors are locked and access is restricted.

Communication: Clear and Concise Messaging

Effective communication is essential during a lockdown. Staff should be trained to communicate the lockdown status to patients and visitors in a clear and concise manner, avoiding jargon and providing reassurance. Providing regular updates and instructions can help alleviate anxiety and ensure cooperation. Pre-scripted messages can be helpful in ensuring consistency and accuracy during a high-stress situation.

Evacuation Procedures: Safely Moving Individuals

Evacuation procedures are necessary when the threat cannot be contained, and it is safer to move individuals to a different location. A well-planned evacuation can minimize the risk of injury or harm during a Code Grey event. Evacuation plans should be regularly practiced and updated.

Prioritization: Assessing Needs and Vulnerabilities

During an evacuation, it is essential to prioritize patients and staff based on their medical needs and vulnerability. Those who are most at risk should be evacuated first, followed by those who are more mobile and self-sufficient. Clear criteria for prioritization should be established in advance.

Routes: Planning and Accessibility

Primary and secondary evacuation routes should be clearly identified and marked, ensuring that they are accessible and free of obstructions. Staff should be familiar with these routes and trained to guide patients and visitors to safety. Alternative routes should be identified in case the primary routes are compromised.

Communication Systems: Connecting During Crisis

Effective communication systems are vital for announcing and coordinating the Code Grey response. Paging systems, radios, and mobile apps can all be used to disseminate information and instructions during a crisis. These systems should be reliable and readily accessible to all staff.

Alert Systems: Conveying Critical Information

Alert systems should be used to announce a Code Grey and provide specific instructions, such as the location of the threat and any necessary precautions. The message should be clear, concise, and easy to understand, avoiding jargon or technical terms. The use of standardized codes can help ensure that the message is quickly and accurately conveyed.

Redundancy: Ensuring Continuity

It is essential to have redundant communication methods in case of system failure. This may include having backup radios, mobile phones, or a manual alert system. Regular testing of all communication systems is crucial to ensure their reliability.

Training Programs/Simulations: Preparing for the Real Event

Regular training and simulations are essential for reinforcing protocols and building confidence among staff. These exercises provide an opportunity to practice skills, identify weaknesses, and improve the overall response to a Code Grey event. Training should be realistic and scenario-based.

Frequency: Reinforcing Knowledge and Skills

Training programs should be conducted regularly, at least annually, to reinforce knowledge and skills. Simulations should be conducted more frequently, allowing staff to practice their response in a realistic environment. Regular training ensures that staff are prepared to respond effectively when a Code Grey event occurs.

Content: Comprehensive and Relevant

Code Grey training should cover a wide range of topics, including de-escalation techniques, restraint procedures, lockdown protocols, evacuation procedures, and communication strategies. The training should be tailored to the specific needs of the facility and the roles of the staff members. Training should also include information on the legal and ethical considerations related to Code Grey response.

After-Action Reviews/Debriefings: Learning from Experience

After-action reviews (AARs) and debriefings are essential for identifying strengths and weaknesses in the response to a Code Grey event. These reviews provide an opportunity to learn from experience and improve future responses. AARs should be conducted as soon as possible after the event.

Purpose: Identifying Areas for Improvement

The purpose of an AAR is to identify what went well, what could have been done better, and what lessons were learned. The review should involve input from all stakeholders, including security personnel, nurses, physicians, and administrators. The focus should be on identifying systemic issues rather than assigning blame.

Improvement: Implementing Changes

Feedback from AARs should be used to identify areas for improvement in future responses. This may involve revising policies and procedures, providing additional training, or investing in new equipment. Implementing changes based on AAR findings can significantly improve the effectiveness of Code Grey response.

Active Shooter Drills: Preparing for the Worst-Case Scenario

Active shooter drills are an essential component of Code Grey preparedness, designed to improve staff preparedness and response time in the event of a hostile intruder. These drills provide a controlled environment for staff to practice lockdown, evacuation, and self-defense techniques. Active shooter drills should be conducted in a realistic and safe manner.

Purpose: Enhancing Preparedness and Response

The primary purpose of active shooter drills is to enhance staff preparedness and response time. Drills allow staff to practice their roles and responsibilities in a simulated active shooter scenario. Regular drills can help reduce panic and improve coordination during a real event.

Execution: Realistic and Safe

Active shooter drills should be executed in a realistic and safe manner, minimizing disruption to patient care. Drills should involve realistic scenarios and simulate the sights and sounds of an active shooter event. Staff should be provided with clear instructions and guidelines before, during, and after the drill.

Designated Safe Areas/Shelter-in-Place Locations: Providing Refuge

Designated safe areas or shelter-in-place locations provide a secure refuge for individuals during a Code Grey event. These areas should be located in areas of the hospital that are easily accessible and can be quickly secured. Safe areas should be clearly marked and equipped with essential supplies.

Locations: Strategic and Accessible

The locations of designated safe areas should be strategically selected based on their proximity to patient care areas, their ability to be secured, and their accessibility. These areas should be easily identifiable and marked with clear signage. Safe areas should be large enough to accommodate a reasonable number of individuals.

Organizational and Regulatory Considerations for Code Grey

Following a clear understanding of roles, the effectiveness of a Code Grey response hinges not only on the meticulous implementation of well-defined procedures and protocols but on a framework of organizational and regulatory standards.

These established guidelines serve as the backbone of a coordinated and safe reaction, ensuring that all personnel are equipped to act within legally and ethically sound parameters. Navigating the complex web of accreditation and regulatory oversight is paramount for healthcare facilities seeking to provide a secure environment for patients, staff, and visitors.

The Joint Commission (TJC) and Accreditation Standards

The Joint Commission (TJC) plays a pivotal role in setting and enforcing standards for healthcare organizations. Accreditation by TJC signifies a commitment to quality and patient safety, reflecting adherence to stringent benchmarks.

Within the context of Code Grey, TJC accreditation standards directly address emergency management, security, and patient safety. These standards provide a framework for healthcare facilities to develop and implement comprehensive security plans, conduct regular risk assessments, and train staff in appropriate response protocols.

Compliance with TJC standards is not merely a formality. It is a critical component of demonstrating a healthcare facility's dedication to providing a safe environment. Failure to meet TJC standards can result in loss of accreditation, which carries significant implications for funding, reputation, and overall operational viability.

Centers for Medicare & Medicaid Services (CMS) and Emergency Preparedness

The Centers for Medicare & Medicaid Services (CMS) also exert considerable influence on healthcare facilities. CMS regulations concerning emergency preparedness mandate that healthcare organizations develop and implement robust emergency preparedness plans.

These plans must address a wide range of potential threats, including security breaches and violent incidents that necessitate a Code Grey response. CMS places particular emphasis on the integration of security measures into the emergency preparedness framework. This includes protocols for controlling access, managing disruptive individuals, and coordinating with local law enforcement agencies.

A crucial aspect of CMS regulations is the requirement for healthcare facilities to conduct regular training exercises and drills. These exercises are designed to evaluate the effectiveness of emergency preparedness plans and identify areas for improvement. Regular drills also ensure that staff members are proficient in implementing Code Grey protocols and are prepared to respond effectively in a real-world crisis.

OSHA and Workplace Violence Prevention

The Occupational Safety and Health Administration (OSHA) focuses on ensuring workplace safety and health standards. OSHA standards are vital for protecting healthcare employees from the hazards of workplace violence.

OSHA's General Duty Clause requires employers to provide a workplace free from recognized hazards that are causing or are likely to cause death or serious physical harm to employees. This encompasses the risk of violence in healthcare settings.

To comply with OSHA regulations, healthcare facilities must conduct thorough hazard assessments to identify potential risks of workplace violence. They also must develop and implement comprehensive violence prevention programs, including measures to mitigate identified risks.

These programs should include training for staff on de-escalation techniques, reporting procedures for violent incidents, and access to resources for victims of violence. Ultimately, OSHA regulations underscore the need for healthcare facilities to prioritize the safety and well-being of their employees and implement proactive measures to prevent workplace violence.

By meeting the requirements and standards of TJC, CMS, and OSHA, healthcare organizations demonstrate their commitment to security, patient safety, and staff well-being, fostering a safer and more secure environment.

Key Concepts for Effective Code Grey Response

Following a rigorous protocol is not enough. The success of a Code Grey response hinges on a foundation of core principles that guide actions and decisions in real-time. These concepts, encompassing situational awareness, communication, teamwork, and a steadfast commitment to safety, form the bedrock of an effective and adaptive strategy when facing aggression or violence within a healthcare setting.

Situational Awareness: The First Line of Defense

Situational awareness is far more than simple observation; it's an active and continuous process of perceiving, understanding, and projecting potential threats. It demands that healthcare professionals maintain a heightened sense of their surroundings, enabling them to identify subtle cues that may indicate escalating tensions or impending violence.

This includes recognizing changes in individual behavior, such as agitation, pacing, or threatening gestures. A heightened state of alert allows for proactive intervention, potentially de-escalating a situation before it escalates into a full-blown Code Grey event.

Communication Skills: Bridging the Gap

Effective communication is the cornerstone of de-escalation and crisis management. Clear, concise, and empathetic communication can often diffuse tense situations and prevent them from escalating.

This involves active listening, using non-threatening body language, and employing verbal techniques that promote understanding and cooperation. The ability to communicate effectively not only with the potential aggressor but also with colleagues, patients, and visitors is essential for coordinating a safe and effective response. Utilizing plain language ensures that information is easily understood, reducing confusion and promoting swift action.

Teamwork: A Coordinated Effort

A Code Grey event demands a coordinated and collaborative response. Teamwork is not merely a desirable attribute; it is a critical necessity for managing a crisis effectively.

Each member of the healthcare team, from security personnel to nurses and physicians, must understand their role and responsibilities within the Code Grey protocol. Clear lines of communication and a shared understanding of the response plan are essential for ensuring a seamless and coordinated effort. Regular drills and simulations can help to reinforce teamwork skills and identify areas for improvement.

Safety: The Paramount Priority

Patient Safety: Unwavering Protection

In the midst of a Code Grey event, the safety and well-being of patients must remain the paramount concern. Protecting vulnerable patients from harm requires proactive measures, such as relocation to secure areas or providing direct physical protection.

Healthcare providers must be prepared to make difficult decisions, prioritizing patient safety above all else. Clear communication with patients, explaining the situation and providing reassurance, can help to alleviate anxiety and promote cooperation.

Staff Safety: Protecting the Protectors

While patient safety is paramount, the safety of healthcare staff cannot be overlooked. Staff members are often the first responders to a Code Grey event, placing them at risk of injury or harm.

Providing staff with the necessary training and resources to protect themselves is essential. This includes training in de-escalation techniques, self-defense strategies, and the proper use of restraints. Healthcare facilities must also foster a culture of safety, where staff members feel empowered to report potential threats and concerns without fear of reprisal.

Video: Code Grey: Hospital Emergency Codes Explained

Play Video

So, next time you're at the hospital and hear "Code Grey," you'll know it's not just some random background noise. It's a signal that staff is working to manage a combative or aggressive situation and keep everyone safe. Hopefully, you'll never have to witness a Code Grey firsthand, but now you're a little more informed about what goes on behind the scenes in healthcare.