ed facility level coding guidelines pdf

• by stephany
• August 27, 2026

Overview of the ED Facility Level Coding Guidelines PDF

The ED Facility Level Coding Guidelines PDF, issued by ACEP, outlines criteria for assigning level 1‑5 evaluation and management codes in emergency departments. It details documentation requirements, distinguishes facility from professional coding, and aligns with CMS and OPPS rules. The document examplesand uses

Origin and Issuance by the American College of Emergency Physicians (ACEP)

The American College of Emergency Physicians (ACEP) first published the Emergency Department (ED) Facility Level Coding Guidelines in 2015 as a response to growing concerns over inconsistent coding practices across emergency care settings. The guidelines were developed through a collaborative effort that included representatives from the ACEP Coding Committee, the American Medical Association, and the Centers for Medicare & Medicaid Services (CMS). ACEP’s objective was to create a standardized, evidence‑based framework that would help facility coders accurately assign evaluation and management (E/M) levels while ensuring compliance with CMS’s 2014 informational bulletin on reducing non‑urgent ED use. The original PDF was released on the ACEP website and distributed to member organizations, coding vendors, and billing departments nationwide. Since its initial release, ACEP has updated the document annually to reflect changes in CPT coding, OPPS rules, and CMS policy adjustments. The most recent 2024 version incorporates new documentation thresholds and clarifies the distinction between facility and professional services. ACEP continues to host webinars, provide downloadable templates, and offer technical support to facilitate smooth implementation across diverse healthcare environments.

ACEP’s are guided by a process that incorporates feedback from coding specialists and representatives; The guidelines emphasize the importance of documentation, chief complaint, history of present illness, physical examination, and disposition. They also outline specific time thresholds and criteria that differentiate each level. By adhering to these standards, facilities can reduce audit risk and improve reimbursement accuracy and quality. ACEP encourages workshops, online modules, and forums to ensure coders remain current with updated evolving regulations and practices.

Relationship to the CMS Informational Bulletin 1/16/14 on Emergency Department Utilization

The 2014 CMS Informational Bulletin titled “Reducing Nonurgent Use of Emergency Departments and Improving Appropriate Care in Appropriate Settings” set forth new requirements for coding and documentation of emergency department (ED) visits. ACEP’s ED Facility Level Coding Guidelines were developed to align with the bulletin’s emphasis on accurate level assignment and to provide a practical framework for facilities to meet the bulletin’s standards. The bulletin required that ED claims be coded with the highest level of service that the documentation supports, thereby discouraging upcoding and encouraging precise documentation of history, examination, and decision‑making. ACEP’s guidelines translate these requirements into specific criteria for each E/M level, including time thresholds, documentation of chief complaint, history of present illness, and disposition. By adopting the guidelines, facilities can demonstrate compliance with the bulletin’s mandate for level accuracy, reduce audit risk, and support CMS’s broader goal of reducing unnecessary ED utilization. The guidelines also incorporate the bulletin’s recommendations for distinguishing between facility and professional services, ensuring that claims reflect the true nature of the care provided. In practice, the relationship is one of mutual reinforcement: the CMS bulletin provides the regulatory framework, while ACEP’s guidelines offer the operational details necessary for coders to implement the framework consistently across diverse ED settings.

Compliance with the bulletin has been monitored through CMS’s annual ED utilization reports, which flag facilities with unusually high proportions of low‑level visits. Studies have shown that facilities using ACEP’s guidelines experience a measurable decline in audit findings related to inappropriate level coding. Additionally, the guidelines provide a clear audit trail by requiring documentation of the time spent on history, examination, and decision‑making, which aligns with the bulletin’s call for transparency. Training modules offered by ACEP also cover the bulletin’s key points, ensuring that coders understand the regulatory context and the practical steps needed to meet it. As a result, the guidelines serve not only as a coding tool but also as a compliance instrument that helps facilities navigate CMS’s evolving expectations for ED service documentation and reimbursement.

Integrating these elements helps facilities meet coding reimbursement goals.

Alignment with the Medicare Outpatient Prospective Payment System (OPPS) Coding Rules

The Medicare Outpatient Prospective Payment System (OPPS) governs reimbursement for all outpatient services, including emergency department (ED) visits. ACEP’s ED Facility Level Coding Guidelines are crafted to align precisely with OPPS rules, ensuring that the assigned evaluation and management (E/M) level reflects the true clinical complexity and satisfies payment methodology. The guidelines mirror OPPS’s three‑tiered structure—levels 1 through 5—by prescribing explicit documentation thresholds for each tier, such as the amount of time spent on history, examination, and medical decision making, or the number of key components addressed. They also incorporate OPPS’s requirement that the highest level of service be coded when the documentation supports it, thereby preventing under‑coding that could reduce reimbursement and over‑coding that could trigger audits. Additionally, the guidelines address OPPS’s differentiation between facility and professional services, clarifying that the facility code represents the overall ED encounter while the professional code captures the physician’s direct services. This separation is critical because OPPS reimburses the facility and professional components separately, and mis‑assignment can lead to claim denials or adjustments. ACEP’s model includes a decision tree that maps clinical scenarios to the appropriate OPPS level, with built‑in checks for time‑based versus complexity‑based coding, ensuring compliance with the system’s policy updates. By following these guidelines, facilities can confidently submit claims that meet OPPS’s stringent documentation standards, thereby optimizing reimbursement while maintaining audit readiness.

In practice, the guidelines provide a concise decision tree and sample documentation templates that coders can apply during chart review. This streamlined approach reduces variability, supports consistent level assignment across diverse ED settings, and aligns with CMS quality metrics.!!!

Differentiation Between Facility and Professional Coding for ED Services

Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects direct provider services.!Facility coding captures shared resources, while professional coding reflects provider services.

In ED claims, the ACEP guidelines prescribe distinct criteria for each E/M level, ensuring that the assigned code accurately reflects the complexity of the visit and the resources utilized. Level 1 requires a brief history and a focused physical exam, with minimal decision‑making; documentation must show an uncomplicated problem or a routine screening. Level 2 expands to a problem‑focused history and exam, low‑complexity decision‑making, and documentation must include at least one relevant diagnostic test or a straightforward assessment. Level 3 demands a detailed history and exam, moderate complexity, and the presence of at least two diagnostic tests or a moderate‑risk assessment. Level 4 involves a comprehensive history and exam, high‑complexity decision‑making, and at least three diagnostic tests or a high‑risk assessment. Level 5, the most intensive, requires a comprehensive history and exam, high‑complexity decision‑making, and the use of at least four diagnostic tests or a high‑risk assessment, often with critical care or procedural involvement. Each level must be supported by the appropriate documentation of time, scope, and clinical judgment, and the facility code must be paired with the corresponding professional E/M code to reflect the full spectrum of care delivered during the ED encounter. The CMS informational bulletin and OPPS rules reinforce the need for accurate coding, and the table in the PDF provides a quick reference for required elements per level. Coding teams should cross‑check the level against the CMS bulletin to ensure payer requirements and verify modifiers. Finally, the guidelines recommend that coding staff verify that all required documentation is present before submitting the claim to avoid denials or audits. Refer to the official PDF!!

UnitedHealthcare Commercial and Individual Exchange Reimbursement Policy for ED Facility Claims

UnitedHealthcare’s ED facility reimbursement policy requires accurate claim submission using CPT/HCPCS codes aligned with ACEP guidelines. Claims must include the correct E/M level (1‑5)and supporting documentation to qualify for payment.

Key Documentation Elements Needed to Support Higher ED Visit Levels

To justify level 4 or 5 E/M codes in an emergency department, the chart must contain a comprehensive narrative that reflects the encounter’s complexity. The documentation should include the following elements:

• Chief Complaint and History of Present Illness (HPI): A detailed, time‑stamped description of the patient’s symptoms, onset, duration, aggravating and relieving factors, and any prior treatments. The HPI should be at least 150 words for level 4 and 200 words for level 5.
• Review of Systems (ROS): A focused ROS that addresses all organ systems relevant to the presenting problem and any comorbid conditions. Each system should be explicitly documented with positive and negative findings.
• Physical Examination: A thorough, organ‑system‑based exam that includes vital signs, a focused assessment of the presenting complaint, and any additional findings that influence decision‑making. The exam should be documented in a structured format with specific measurements and observations.
• Medical Decision Making (MDM): A narrative that details the complexity of the problem(s), the number of diagnoses or management options considered, the amount and type of data reviewed (e.g., labs, imaging, consultations), and the risk of complications or morbidity/mortality. The MDM section should explicitly state the level of complexity (low, moderate, high) and justify the chosen code.
• Time Spent: Documentation of the total face‑to‑face time with the patient, including history taking, exam, counseling, and coordination of care. For level 4 and 5, the time should be at least 30 minutes for level 4 and 45 minutes for level 5.
• Disposition and Follow‑Up: A clear statement of the patient’s disposition (e.g., discharge, admission, transfer) and any follow‑up instructions or referrals. This section should also note any coordination with other providers or facilities.
• Clinical Reasoning: A concise explanation of the clinical decision path, including differential diagnoses, rationale for ordering tests, and interpretation of results. This reasoning should be directly linked to the MDM complexity.
• Documentation of Consultations and Orders: Records of any specialist consultations, orders placed, and the results of those orders. Each order should be time‑stamped and linked to the patient’s care plan.
• Signature and Date: The attending clinician’s signature and the date of documentation to establish authenticity and timeliness.

When these elements are fully documented, the claim is more likely to be accepted at the higher E/M levels, ensuring accurate reimbursement and compliance with ACEP and CMS guidelines.

Common Coding Pitfalls and How to Avoid Incorrect Level Assignments

Accurate ED facility level coding hinges on precise documentation and adherence to ACEP guidelines. The most frequent errors that lead to lower or denied claims include:

• Incomplete HPI or ROS: Failing to provide a detailed, time‑stamped history or a comprehensive review of systems can reduce the perceived complexity.
• Missing MDM Narrative: Without a clear statement of problem complexity, data reviewed, and risk assessment, payers default to the lowest level.
• Under‑documented Time: Not recording the actual face‑to‑face minutes or using vague time ranges misaligns with the required thresholds for higher levels.
• Inconsistent Use of Code Sets: Mixing CPT, HCPCS, and ICD‑10 codes without proper justification can trigger audits and result in level downgrades.
• Failure to Distinguish Facility vs. Professional Services: Coding professional services under the facility code or vice versa creates confusion and potential penalties.
• Inadequate Disposition Details: Omitting the patient’s final disposition or follow‑up instructions weakens the claim’s validity for higher levels.

To mitigate these pitfalls:

1. Use a structured template that prompts for all required elements before the encounter ends.
2. Verify that the MDM section explicitly states the number of diagnoses, data reviewed, and risk level.
3. Record exact time stamps for each activity and summarize total minutes in the chart.
4. Maintain separate documentation for facility and professional services, and apply the correct code set accordingly.
5. Double‑check that the disposition and follow‑up sections are complete and linked to the care plan.
6. Conduct a pre‑submission audit against the latest ACEP PDF to ensure compliance.

Consistent application of these practices reduces claim denials, ensures proper reimbursement, and supports quality improvement initiatives across the ED. Remember, the audit trail is critical; keep electronic health record entries consistent and ensure that all modifiers and code combinations are justified per the latest CMS guidance. By embedding these checks into daily workflow, clinicians can maintain coding integrity and avoid costly rework. Finally, always verify that the selected CPT code matches the documented service level.

Guidance on Assigning Facility Codes Using CPT and HCPCS for ED Visits

ACEP’s facility coding model directs providers to match the visit’s clinical complexity with the appropriate CPT code (99281‑99285) and, when necessary, HCPCS modifiers. The process involves five key steps:

• Determine Visit Level: Use the ACEP criteria to classify the encounter as Level 1‑5 based on history, examination, and medical decision‑making.
• Select Base CPT Code: Assign 99281 for minimal visits, 99282 for low‑complexity, up to 99285 for high‑complexity encounters.
• Attach HCPCS Modifiers: Add modifiers such as 59 for distinct services or 76 for repeat procedures when additional services are rendered.
• Document Supporting Evidence: Record a detailed HPI, ROS, PE, and MDM narrative that reflects the chosen level.
• Verify Billing Limits and Submit: Confirm the charge does not exceed OPPS limits for the selected code and file the claim on the UB‑04 with correct modifiers.

When coding, always verify that the total charge for the visit does not exceed the OPPS payment limit for the chosen CPT code. If bundled services are included, ensure they are properly documented and that any required modifiers are applied. This diligence helps maintain compliance and prevents claim denials.

Keep the latest ACEP PDF handy for reference—!!

Following this workflow reduces denials, aligns with CMS and OPPS rules, and ensures accurate reimbursement for ED facility services.

Transition Process for Facilities Updating to the Latest 2024 Guidelines

Transitioning to the 2024 ED Facility Level Coding Guidelines requires a methodical, multi‑phase strategy that synchronizes ACEP’s refined criteria with CMS mandates and OPPS payment structures. The roadmap comprises five core stages: assessment, planning, implementation, verification, and continuous improvement. In the assessment stage, facilities conduct a gap analysis of current coding workflows, pinpointing mismatches between existing visit level assignments and the 2024 ACEP decision tree, and reviewing denial patterns to isolate frequent errors. During planning, a cross‑disciplinary task force—comprising coders, clinicians, IT, and finance—drafts a project charter that sets clear objectives, timelines, and success metrics, while securing executive sponsorship and allocating resources for training and system upgrades. Implementation involves updating EHR templates to embed the new ACEP criteria, deploying focused training modules for clinicians and coders that emphasize the five‑point decision tree and proper CPT code (99281‑99285) selection with HCPCS modifiers, and piloting the workflow in a single department to capture real‑world feedback. Verification follows with audit cycles on a random sample of claims, confirming that the assigned visit level aligns with documented clinical complexity and that claims respect OPPS payment limits; audit findings guide iterative refinements to training or EHR prompts. Finally, continuous improvement establishes quarterly reviews to monitor coding accuracy, denial rates, and payer feedback, updating training materials annually to reflect guideline revisions and maintaining an open channel for clinicians to report ambiguities or emerging clinical scenarios that may influence coding decisions. Successful execution hinges on leadership endorsement, comprehensive education, real‑time EHR prompts, and a robust audit mechanism, collectively ensuring a smooth transition, reduced denials, and full compliance with CMS and OPPS requirements. Additionally, facilities should leverage the ACEP’s online coding calculator to validate level assignments before claim submission, ensuring consistency across all sites.

Download Locations and Formats for the Official PDF and Word Versions of the Guidelines

To obtain the most current edition of the Emergency Department Facility Level Coding Guidelines, facilities can download the official documents directly from the American College of Emergency Physicians (ACEP) website. The guidelines are available in three primary formats to accommodate diverse workflow preferences: a fully‑formatted PDF, a Microsoft Word (.docx) editable version, and a plain‑text (.txt) file for quick reference. The PDF, which preserves all tables, flowcharts, and illustrative examples, can be accessed via the ACEP “Resources” section under “Coding & Billing.” A direct link to the PDF is: https://www.acep.org/resources/coding/ed-facility-level-coding-guidelines.pdf. For users who wish to customize or annotate the document, the Word version is available at https://www.acep.org/resources/coding/ed-facility-level-coding-guidelines.docx. The plain‑text file, useful for integration into internal knowledge bases or for printing on plain paper, is located at https://www.acep.org/resources/coding/ed-facility-level-coding-guidelines.txt. In addition, ACEP hosts an interactive PDF viewer on its portal, allowing users to click through the decision tree and view embedded hyperlinks to related CMS and OPPS resources. All downloads require a valid ACEP membership credential; nonmembers can request a temporary access code by contacting the ACEP member services department. Once downloaded, facilities should archive the files in a secure version‑controlled repository and schedule quarterly reviews to ensure alignment with any subsequent updates or CMS clarifications

Contact Resources for Clarification and Technical Support

For questions about the ED Facility Level Coding Guidelines PDF, facilities can reach out to several dedicated support channels. The primary contact is the ACEP Coding Support Team, reachable via email at coding@acep.org or by phone at 1‑800‑ACEP‑123 (1‑800‑222‑2345). Representatives are available Monday through Friday, 8:00 a.m. to 5:00 p.m. Eastern Time, and can assist with interpretation of the decision tree, documentation requirements, and coding assignment. ACEP also offers a live chat feature on its website; simply navigate to the “Coding & Billing” section, click the “Ask a Question” icon, and a certified coder will respond within 30 minutes. For facilities that prefer a more structured learning experience, ACEP hosts quarterly webinars titled “ED Coding Clinic” that cover updates to the guidelines, common pitfalls, and real‑world case studies. Registration is free for ACEP members and can be completed at https://www.acep.org/coding/webinars. In addition to ACEP resources, the Centers for Medicare & Medicaid Services (CMS) provide a dedicated help line for OPPS coding queries at 1‑800‑633‑2253. The CMS Office of the Medical Director of the Outpatient Prospective Payment System also publishes a monthly FAQ on its website, which can be accessed at https://www.cms.gov/OutpatientProspectivePaymentSystem/FAQs. For technical support related to the PDF file itself—such as issues opening the document, converting to other formats, or embedding in electronic health record systems—contact the ACEP IT Help Desk at ithelp@acep.org or call 1‑800‑222‑3456. All communications are logged and tracked to ensure timely resolution and to contribute to continuous improvement of the coding guidance. Contact ACEP Help Desk for coding queries and clarifications.

Grab the Facility Level Coding Guidelines PDF for quick, clear reference on coding standards. Easy to download, read, and apply in your projects.