' Coding and Evaluation and Management (E/M) Guidelines

Evaluation and Management (E/M) Codes

Evaluation and management (E/M) codes represent a critical segment of medical coding, utilized by healthcare providers across all medical specialties and within a wide variety of clinical settings. The assignment of these codes is inherently challenging due to the numerous elements involved and the varying criteria required for accurate code selection.

Organization of the E/M Section

The E/M section of the coding manual is organized hierarchically based on three primary factors:

1. Place of Service: This refers to the physical location where the healthcare encounter occurs. Examples include:
   • Doctor's office or other outpatient services.
   • Hospital observation services.
   • Nursing facility services.
2. Type of Service: This identifies the specific nature of the care provided. Examples include:
   • Consultations.
   • Non-face-to-face services.
   • Newborn care services.
3. Patient Status: This categorizes patients based on their relationship with the provider or facility and their admission status. Key categories include:
   • New versus established patients.
   • Inpatient versus outpatient status.

Patient Status and Coding Definitions

The New Patient "Three-Year Rule"

Patient status as "new" is determined strictly by the three-year rule. A patient is considered new if they have not received any face-to-face professional services from the provider, or another provider of the exact same specialty within the same group practice, within the previous $3$ years.

Inpatient vs. Outpatient Classification

• Inpatients: These are individuals who have been formally admitted to an inpatient organization or hospital facility.
• Outpatients: This category includes patients seen in settings such as the office. Crucially, the Emergency Department and Observation status are formally classified as outpatient services.

Fundamentals of E/M Service Levels

The level of E/M service reported to payers must be explicitly supported by the amount of work documented within the patient's medical record.

• Medical Necessity: The foundation of any service performed must be medical necessity. The volume of documentation alone does not justify a higher level of service; rather, the necessity of the service for the patient's care is the primary driver.
• Criteria for Selection: The level of service is driven by the specific reason for the encounter and is measured against the criteria provided in the code descriptions. For many E/M codes, these criteria are based on the levels of "key components" documented during the visit.

Key Components of E/M Coding

1. History

The history component involves gathering subjective details regarding the patient’s condition. These elements are documented according to their relevance to the specific encounter and include:

• Chief Complaint (CC): The primary reason the patient is seeking care.
• History of Present Illness (HPI): A chronological description of the development of the patient's present illness.
• Review of Systems (ROS): An inventory of body systems obtained through a series of questions.
• Past, Family, and Social History (PFSH): Details regarding the patient's past medical history, family medical history, and social habits or environment.

Example Application: If a patient presents with reports of muffled hearing, the provider will take a social history. This is because the social history could reveal that the patient is subjected to loud noises in their work environment, which serves as a contributing factor to the condition.

2. Examination

The examination consists of the provider’s physical assessment of body areas or organ systems as they relate to the chief complaint. These findings allow the provider to form objective assessments of the patient's condition. The provider determines the extent of the examination (if any) required for each specific encounter.

3. Medical Decision Making (MDM)

In this component, the provider uses the subjective history and objective examination findings to determine a diagnosis or assess the status of a known diagnosis (such as determining if a condition is stable or experiencing an exacerbation). The three core elements of MDM are:

• The number and complexity of problems addressed during the encounter.
• The amount and/or complexity of tests or other data that must be ordered, reviewed, or analyzed during the encounter.
• The associated risk of the patient's management decisions made during the encounter.

Subsection Requirements: Component vs. Time

While history, examination, and MDM determine the code level for the majority of E/M services, certain subsections utilize different criteria. Some are strictly time-based, while others allow the provider to choose between component-based or time-based selection.

Questions & Discussion

Staff In-Service: Choosing the Correct Code Level

Dialogue between Billee and Codee:

BILLEE: I am excited about our upcoming in-service for E/M coding. What do you think is the best way to open a conversation about choosing the correct code level?

CODEE: I think we should focus on the requirements for the services that we report most often—office visits and preventive medicine services. By focusing on explaining the requirements for each level, we can improve our reporting and billing accuracy.

BILLEE: Great idea, I will create some examples based on our typical billing scenarios. It is important to understand the guidelines for Evaluation and Management code selection. Sometimes E/M codes are intentionally downcoded, due to uncertainty. A billing and coding specialist can help prevent a reduction in revenue by performing routine in-service training for E/M and other coding topics as a way to support correct coding and the revenue cycle.

Key Takeaways for Practice

• Downcoding Risks: Uncertainty in code selection often leads to intentional downcoding, which results in a direct reduction of revenue.
• Revenue Cycle Support: Routine in-service training conducted by billing and coding specialists is essential for maintaining correct coding practices and ensuring the health of the revenue cycle.