AAPC CEDC Real Exam Dumps [September 2026 Update]

The 2023 E/M guidelines changed how emergency department evaluation and management visits are coded, and the CEDC exam tests the current guidelines – not the approach that many experienced ED coders learned when they began their careers. Before 2021-2023, ED E/M coding used a combination of history, examination, and medical decision making (MDM) key components to select visit levels, with specific requirements for each element. The 2023 revision eliminated the requirement to document specific history and examination elements for E/M level selection and made MDM the primary driver. Level selection now depends on the complexity of MDM across three elements: the number and complexity of problems addressed, the amount and complexity of data reviewed, and the risk of complications or morbidity or mortality of patient management. Each element has four levels (Minimal, Low, Moderate, High), and the two-of-three rule applies – the visit level is determined by the highest level achieved in at least two of the three MDM elements. Coders who learned the old key-component approach and have not specifically studied the 2023 MDM table will select the wrong E/M level on exam questions where the chart documentation clearly supports a different level under the new rules than it did under the old rules. This is not a minor change – it is a fundamental restructuring of how E/M levels are determined, and the exam tests it at the table-level detail.

The AAPC CEDC (Certified Emergency Department Coder) is AAPC’s specialty credential for coders working in emergency department settings. It validates proficiency in ED-specific E/M coding, ED procedure coding, ICD-10-CM diagnosis coding, HCPCS Level II, modifiers, and Medicare billing regulations specific to the emergency department setting. Format: 100 multiple-choice questions, proctored, 4 hours. Passing score: 70% (70/100). Fee: $399 (includes two exam attempts). Renewal: 36 CEUs per 2 years, 8 of which must be ED-specific.

Cert Empire’s CEDC exam questions are built at the 2023 E/M guidelines depth – MDM table-level application – and cover the full range of ED procedure codes and Medicare billing rules the exam tests.

Exam Snapshot

Topic Area 1: Emergency Department E/M Coding – 2023 Guidelines

The 2023 MDM Framework

The 2023 E/M guidelines apply to all outpatient E/M services including Emergency Department visits (CPT codes 99281-99285). The five ED E/M codes correspond to visit complexity levels, with 99285 representing the highest complexity.

The three MDM elements the exam tests:

Element 1: Number and Complexity of Problems Addressed

This element evaluates the patient’s presenting problems and the clinical decision making they require:

• Minimal: One self-limiting or minor problem
• Low: Two or more self-limiting problems OR one stable chronic illness OR one acute uncomplicated illness
• Moderate: One or more chronic illnesses with exacerbation OR two or more stable chronic illnesses OR one undiagnosed new problem with uncertain prognosis OR one acute illness with systemic symptoms
• High: One or more chronic illnesses with severe exacerbation OR one acute or chronic illness or injury that poses a threat to life or bodily function

Element 2: Amount and Complexity of Data Reviewed

This element evaluates the cognitive work involved in ordering, reviewing, and analyzing data:

• Minimal: No data reviewed or minimal data (one category)
• Low: Limited data from one of three categories (tests ordered, external records reviewed, or independent interpretation of results)
• Moderate: Moderate complexity data from three specified subcategories, with specific combinations required
• High: High complexity data including extensive data review, independent interpretation of results, and discussion of management with an external physician

Element 3: Risk of Complications or Morbidity or Mortality

This element evaluates the risk associated with the patient’s presenting problem and the management decisions:

• Minimal: Minimal risk (rest, gargles, elastic bandages)
• Low: Low risk (over-the-counter drug management, minor surgery with no identified risk factors)
• Moderate: Moderate risk (prescription drug management, minor surgery with identified risk factors, diagnostic procedure with identified risk factors)
• High: High risk (drug therapy requiring intensive monitoring, decision about hospitalization, decision for major surgery, diagnosis or treatment significantly limited by social determinants of health)

The two-of-three rule: The overall MDM level is determined by the highest level reached in at least two of the three elements. A patient with Moderate complexity for Problems, Low for Data, and High for Risk qualifies for Moderate MDM overall – because only one element (Risk) reaches High, but two elements reach at least Moderate (Problems at Moderate, Risk at High counts as at least Moderate).

Applying the MDM table to a clinical scenario: The exam presents an ED chart scenario with specific clinical details and asks which E/M level is correct. The process: identify the highest complexity of Problems addressed, identify the complexity of Data reviewed, identify the highest Risk level, apply the two-of-three rule to select the MDM level, and select the corresponding CPT code (99281-99285).

Critical Care E/M (99291, 99292)

What qualifies as critical care: Critical care involves physician work directly managing a critical illness or injury that acutely impairs one or more vital organ systems such that there is a high probability of imminent or life-threatening deterioration without immediate physician intervention. The exam tests what clinical conditions qualify for critical care versus high-complexity ED visit (99285).

Critical care time: Critical care is time-based. The first 30-74 minutes of critical care is reported with 99291. Each additional 30 minutes is reported with 99292. The exam tests what time is included in critical care time (direct patient care time AND time spent on the unit/floor reviewing test results, discussing the case, or documenting – but not time spent on administrative tasks unrelated to the patient’s care).

Critical care exclusions: Certain services provided during critical care are bundled into the critical care codes and cannot be separately billed: interpretation of cardiac output monitoring, chest X-ray interpretation, blood gas interpretation, pulse oximetry, and gastric intubation. The exam tests which services are bundled and which can be separately reported.

Topic Area 2: ED Procedure Coding

Laceration repair: The most frequently coded ED procedure. Three categories: Simple (superficial wounds requiring only simple one-layer closure), Intermediate (layered wound closure requiring subcutaneous repair, or wounds with significant contamination requiring more extensive cleaning before closure), and Complex (requiring more than layered closure – debridement, undermining, retention sutures, extensive adhesive closure). The exam tests the distinction between categories and how repair length determines the correct code within each category.

Fracture care: Emergency physicians may provide initial fracture care (closed treatment without manipulation) for uncomplicated fractures seen in the ED. The exam tests when ED fracture care is separately reportable versus included in the E/M service, and which fracture codes (from the musculoskeletal CPT section) apply to ED-managed fractures.

Foreign body removal: Removal of foreign bodies from different anatomical sites has different complexity levels and coding. Foreign body removal from the ear canal (69200 simple, 69205 requiring general anesthesia), from the nose (30300), from wound/subcutaneous tissue (10120 simple, 10121 requiring incision). The exam tests the anatomical site distinctions and complexity level selection.

Joint injections and aspirations: Arthrocentesis (joint fluid aspiration) and joint injections are common ED procedures. The exam tests the major joint code (20610) versus small joint code (20600) distinction and when separate imaging guidance is reportable.

Thoracentesis (32554, 32555): Removal of pleural fluid. Code 32554 is without imaging guidance; 32555 includes imaging guidance. The exam tests when each is appropriate and when the ultrasound guidance is separately reportable.

I&D (Incision and Drainage): I&D of abscesses, hematomas, and cysts. The exam tests simple versus complex I&D (10060 vs. 10061 for abscess), the distinction between infected and non-infected cysts, and when pilonidal cyst I&D has a separate specific code.

Moderate sedation: When ED physicians provide moderate sedation for a procedure, separate moderate sedation codes (99151-99153) may be reportable in addition to the procedure code. The exam tests when sedation is included in the procedure code versus separately reportable.

Topic Area 3: ICD-10-CM Diagnosis Coding in the ED

ED documentation and coding rules: ED coding uses the discharge diagnosis – what the physician determines was the patient’s final diagnosis at the end of the ED encounter – rather than the presenting complaint. If the discharge documentation still lists uncertain diagnoses (“possible,” “probable,” “rule out”), the ED uses signs and symptoms rather than the uncertain diagnosis (unlike inpatient coding, which may use unconfirmed diagnoses).

Injury coding in the ED: Injuries require a cause code (external cause of morbidity – the how and where) in addition to the injury code itself. The exam tests the injury coding sequence (injury code first, followed by external cause codes), the requirement for the 7th character extension indicating initial encounter (A), subsequent encounter (D), or sequela (S), and common initial encounter coding in the ED setting.

Poisoning and adverse effects: When a patient presents with a drug reaction, the exam tests the distinction between: poisoning (wrong drug, wrong dose, intentional misuse), adverse effect (correct drug, correct dose, unexpected reaction), and underdosing (patient took less than prescribed). The sequencing differs – poisoning uses the poisoning code first, adverse effect uses the condition first with the drug as an additional code.

Topic Area 4: HCPCS Level II and Modifiers

HCPCS Level II in the ED: Emergency department encounters may require reporting certain supplies, drugs, and services with HCPCS Level II codes. Ambulance services (if the ED provided or arranged them), certain pharmaceuticals administered in the ED (when separately reportable), and specific supplies are reported using HCPCS codes.

Critical modifiers for ED coding:

Modifier -25 (Significant Separately Identifiable E/M Service): When a procedure is performed during the same ED visit as an E/M service, modifier -25 on the E/M code indicates that the E/M was significant and separately identifiable from the procedure (not routine pre-procedure assessment). The exam tests when -25 is required and the documentation standard for supporting both the E/M and the procedure on the same day.

Modifier -27 (Multiple Outpatient Hospital E/M Encounters on the Same Date): Used when a patient has multiple separate encounters at a hospital outpatient facility on the same date. The exam tests when -27 applies (the patient left and returned, not just moved between departments in a single continuous visit).

Modifier -24 (Unrelated E/M Service During Postoperative Period): Applies when an ED visit occurs during a patient’s global surgery period but for a reason unrelated to the surgery. The exam tests the documentation requirement to establish that the ED visit is for an unrelated condition.

Topic Area 5: Medicare Billing Rules for ED Services

Incident-to billing in the ED: Incident-to billing (allowing non-physician practitioners to bill under a supervising physician’s NPI) does NOT apply in the emergency department. The exam tests this specifically because incident-to is available in the outpatient office setting but is excluded from the ED by Medicare policy.

Teaching physician rules for ED: When residents or students are involved in ED care, specific teaching physician documentation requirements apply. The supervising physician must be present for the key portion of the service and must personally perform (or re-perform) the key components of the exam. The exam tests the specific documentation that the teaching physician must include to support billing the E/M at the level documented.

Shared/split visits in the ED: A shared visit occurs when both a physician and a non-physician practitioner (NPP) provide evaluation and management services to the same patient on the same day. Under 2022+ Medicare rules, the visit is billed under the practitioner who performed the substantive portion of the E/M (more than half the time). The exam tests the current shared visit rule and the time-based determination of who bills.

Global surgery and ED visits: ED visits during a global surgery period present billing complexity. If the ED visit is for a complication of the surgery, it is included in the global period and not separately billable. If the ED visit is for an unrelated condition, it is separately billable with modifier -24. The exam tests how to determine whether an ED condition is related or unrelated to the recent surgery.

5 Study Tips for AAPC CEDC

• Tip 1: Study the 2023 E/M MDM table completely – all three elements (Problems, Data, Risk) at all four levels for each element. Practice applying the two-of-three rule to clinical scenarios. This is the foundational skill for a large portion of ED E/M questions.
• Tip 2: Study critical care coding (99291/99292) at the time-based billing level – what qualifies as critical care time, what is excluded from critical care time, and which services are bundled into critical care codes.
• Tip 3: Know modifier -25 application inside out. Most ED encounters involve both an E/M and one or more procedures, and correctly applying -25 is the most commonly tested modifier in the ED coding context.
• Tip 4: Study the incident-to rule exception for EDs. Many coders know incident-to from office practice and assume it applies everywhere – the exam specifically tests that incident-to does not apply in the emergency department.
• Tip 5: Practice with Cert Empire’s CEDC exam questions with emphasis on MDM table application, critical care time-based coding, and Medicare billing rule scenarios specific to the emergency department.

Best Study Resources

• Cert Empire CEDC exam questions PDF and practice simulator (2026 edition).
• AAPC official CEDC certification page (aapc.com/certifications/cedc).
• AAPC CEDC online preparation course (aapc.com/education/exam-preparation/cedc-exam-preparation-course).
• AMA CPT codebook (current year edition – required reference).
• CMS 2023 E/M Coding Guidelines for Evaluation and Management Services.
• CMS Medicare Claims Processing Manual Chapter 12 (Physician/NPP billing including ED rules).

Career Opportunities After CEDC

• Emergency Department Medical Coder
• ED Revenue Cycle Specialist
• Emergency Medicine Coding Auditor
• Physician Group Billing Manager (Emergency Medicine)
• Healthcare Compliance Analyst (ED Focus)

AAPC’s salary surveys consistently show a correlation between specialty credentials and higher compensation. CEDC-credentialed coders working in emergency department settings command a salary premium over general coders, reflecting the specialized E/M, procedure, and regulatory knowledge the credential validates. ED coding positions frequently offer higher base salaries than primary care coding roles due to the procedural complexity and regulatory specificity.

Why Candidates Choose Cert Empire for CEDC Preparation

✔ 2023 E/M MDM table application questions. Our CEDC questions present clinical scenarios and test MDM level selection under the 2023 two-of-three rule – the current guideline that many experienced coders need to specifically study.

✔ Critical care time-based coding questions. We test 99291/99292 selection, what qualifies as critical care time, and which services are bundled into critical care codes.

✔ Medicare billing rule scenario questions. Our questions test incident-to exclusion in the ED, teaching physician documentation requirements, shared/split visit rules, and global surgery period management.

✔ ED procedure coding scenario questions. We test laceration repair category selection, critical care bundled services, foreign body removal by anatomical site, and modifier -25 application scenarios.

✔ Backed by a full money-back guarantee. If our exam questions do not help you pass, we refund your purchase.

FAQ’s

What is the AAPC CEDC certification?

The CEDC (Certified Emergency Department Coder) is AAPC’s specialty credential for experienced emergency department coders. It validates expertise in ED-specific E/M coding, procedure coding, ICD-10-CM, and Medicare billing regulations for the emergency department setting.

What E/M guidelines does the CEDC exam use?

The current 2023 E/M guidelines, which use Medical Decision Making (MDM) as the primary driver for visit level selection based on three elements: number and complexity of problems, amount and complexity of data, and risk of complications. The two-of-three rule determines the overall MDM level.

How many questions are on the CEDC and what is the passing score?

100 multiple-choice questions in 4 hours. A score of 70% (70/100 correct) is required to pass.

Does incident-to billing apply in the emergency department?

No. Medicare’s incident-to rules do not apply in the emergency department setting. This is a specific tested point – incident-to is available in outpatient physician offices but is explicitly excluded from the ED.

What experience is required before taking the CEDC?

AAPC recommends at least two years of emergency department coding experience. The exam assumes strong coding background – it is not designed for new coders.

Related Certifications Worth Exploring

CEDC certified coders expanding their outpatient and acute-care coding expertise will find our ACDIS CCDS-O (Certified Clinical Documentation Specialist – Outpatient) exam questions page covers outpatient documentation, CPT and HCPCS coding, E/M services, compliance, and ambulatory coding scenarios that closely complement emergency department coding responsibilities. For those pursuing foundational AAPC credentials alongside CEDC, our AAPC CPC (Certified Professional Coder) exam questions page covers the primary professional coding credential that provides the foundational CPT, ICD-10-CM, and HCPCS knowledge that CEDC specialty training builds upon.