What Documentation Supports a High-Level ED Code?

What Does a Reviewer Check First in an ED Chart?

A reviewer checks whether the record backs the claim. The CMS MLN booklet on evaluation and management services says your Medicare contractor may ask for documentation to confirm the site of service, the medical necessity of the services and that you reported them correctly.

The booklet also says the record must support the level of service reported, and that you do not use the volume of documentation to decide the level. Chapter 12, section 30.6.1 of the Claims Processing Manual adds that billing a higher level than the case warrants is not medically necessary, and that history and exam must be done as the code describes but do not set the level.

For ED visits, CPT picks the level by medical decision making (MDM) alone or time alone, and the ED coding and documentation guide explains how each level is scored. This post covers how to test and fix the chart.

What Must Every ED Note Contain?

CMS lists the general principles that apply to every E/M service. A note that misses these cannot support any level, however complex the case.

• The reason for the encounter, with the relevant history, exam findings and prior test results.
• The assessment, clinical impression or diagnosis.
• The plan of care.
• The date and the legible identity of the person who did the work.
• The reason for ordering tests and other services, stated or easy to infer.
• Health risk factors, and the patient's progress, response to treatment and any change in diagnosis.
• Diagnosis and treatment codes that match what the record says.

The booklet also asks that services be documented during the encounter or as soon as possible after it, so the record stays accurate.

How Do You Test Whether a Chart Supports the Level Billed?

1. Pull a set of charts for each provider, hiding the level billed. For example, 10 charts per provider each quarter.
2. Read the note as a reviewer would, with only the words on the page. Do not credit what you know the provider usually does.
3. Score the three parts of MDM using the method in the ED guide: the problem addressed, the data and the risk of the management decision.
4. Compare your level with the billed one on the 99284 and 99285 pages.
5. Where they differ, list the gap in plain words: which test, which source, which reason is missing.
6. Send the provider a query. Do not rewrite the note or change the level without the provider.

Track the gaps by provider and by type. A pattern points to a template or a habit, and a single miss points to a coaching note.

What Do Weak Notes Look Like, and What Should They Say?

The usual gap is not missing work, it is missing words. Compare these made-up lines.

Notice that none of the stronger lines adds work. They record the work and the reasoning that already happened. Do not coach providers to add reasoning that did not take place.

Which Template Habits Cause Trouble?

CMS does not forbid templates. The Program Integrity Manual, chapter 3, section 3.3.2.1.1 says contractors consider information captured in templates, but it discourages templates that use check boxes, predefined answers or limited space, because claim review experience shows they often fail to capture enough detail.

It also says templates built mainly to collect information for reimbursement often fall short of showing that coding and coverage criteria are met. In an ED, that means a template that auto-fills a long exam and says nothing about why the tests were ordered is weaker than a short note that explains them.

Can You Fix a Note After the Claim Has Gone Out?

You can add a late entry or an amendment, but it must be honest and visible. The Program Integrity Manual, section 3.3.2.5, says services are expected to be documented when they are rendered, and that the date and author of any amendment, correction or delayed entry should be identifiable and the change clearly and permanently denoted.

Signatures work the same way. Under section 3.3.2.4, reviewers use the whole record to decide whether a required signature is met. If it is not, an attestation can sometimes resolve a missing signature, and a signature log can resolve an illegible one. Fix these before an audit, not after.

What Is Different for Procedures and Critical Care in the ED?

When a procedure shares the claim with the visit, the note must show the visit as separate from the procedure. Read the NCCI edits rule page and the modifier pages for how pairs are edited.

Critical care is billed on time, not on the MDM table. Chapter 12, section 30.6.12.1 says time spent on separately reportable procedures is not counted as critical care time, so the note should show the total critical care minutes and which services were left out of them.

How Is the Hospital's Facility Level Documented?

The facility level comes from the hospital's own guidelines, not from the physician note. Chapter 4, section 160 says each hospital's internal guidelines should relate the intensity of hospital resources to the five levels of codes, so nursing notes and resource records matter on that side.

Check the physician level and the facility level separately, since they can differ. The facility ED level post covers the guideline side, and the trauma activation post covers the activation charge.

What If a Payer Says the Note Does Not Support the Level?

Read the remittance. CARC 150 says the payer deems the information submitted does not support this level of service, and CARC 50 says the service is not deemed medically necessary by the payer.

1. Pull the note the payer saw and compare it with your own audit score.
2. If the note supports the level, appeal with the note and a short letter that points to the lines that show the problem, the data and the decision.
3. If it does not, accept the lower level and correct the claim, then fix the process that let it through.
4. Log the payer, the code and the reason, so the pattern shows up in your next audit.

The denial management playbook covers the appeal steps in full.

How Does Nucleus Align Handle ED Documentation Review?

Our billing and coding audits are a paid service. We compare the level billed with what the note supports and send provider queries where they differ. Learn about billing and coding audits or book a call.