Common IME Errors and How to Prevent Them

Practical guidance for physicians and claim stakeholders

An independent medical examination can influence treatment authorization, return to work, permanent impairment benefits, and the resolution of a disputed claim. Its usefulness depends on whether the examiner gathers the right information, applies an appropriate method, and explains the resulting opinions in language the reader can evaluate.

Many weaknesses begin before the examination. Others arise when a physician converts clinical findings into conclusions about causation, impairment, or work ability. A report may be lengthy and confidently written yet remain unreliable because a critical record was overlooked, a rating rule was misapplied, or an assumption was presented as an established fact.

For physicians, the task is to produce an accurate, impartial assessment. For attorneys and claims professionals, the task is to recognize whether the report provides a sound medical basis for the decisions it is being used to support. The same discipline serves all three audiences: make the path from evidence to conclusion visible.

This article addresses errors across the full IME process, drawing on published best practices, the reporting principles in the AMA Guides, and established causation methodology. It is particularly relevant to musculoskeletal evaluations, with principles that also apply to other specialties. The examiner’s role, claim system, jurisdiction, and any controlling order determine the legal requirements. A weakness may reduce the weight given to an opinion without making it inadmissible. No checklist, credential, or preferred phrase guarantees admissibility. [1-5]

Before the examination

1 Accepting an unclear assignment or drifting beyond it

An examiner who does not understand the referral may perform a competent examination that answers the wrong questions. A request about treatment necessity may require a different analysis from a request about permanent impairment. A disability policy may use definitions that differ substantially from a workers’ compensation statute.

Before accepting the case, identify the requesting party, purpose, disputed conditions, relevant dates, applicable standards, required forms, and reporting deadline. Clarify ambiguous questions through the permitted communication process. Determine whether the assignment includes causation, maximum medical improvement, impairment, work capacity, future care, or only selected issues.

Identify the type of assessment accurately. A records-only review should not be described as an examination, and a remote evaluation should disclose material limits on observation or testing. Separate current findings from findings reported by others.

Preserve the referral questions verbatim and use them as a drafting checklist. Scope discipline does not require ignoring a relevant alternative diagnosis or an important incidental finding. Explain why an additional issue matters, seek clarification when necessary, and separate it from the requested opinions. Avoid unsupported legal conclusions about compensability or entitlement that exceed the medical assignment.

2 Treating the record review as a preliminary formality

The examination is a snapshot. The records show how the condition developed. Skimming only the latest summary can obscure prior symptoms, a subsequent injury, an operative finding, or a meaningful change during recovery. An inaccurate chronology can undermine an otherwise reasonable opinion.

Request relevant records early enough to review them before the appointment. Maintain an inventory identifying the date, author or facility, document type, and available page identifier. Distinguish records received from records actually reviewed. Identify missing, illegible, incomplete, or inaccessible material rather than representing the file as complete.

Differentiate reviewing an imaging report from personally reviewing the images. A statement such as “MRI reviewed” is ambiguous when only the radiologist’s interpretation was available. Summaries prepared by others may assist organization, but the examiner should verify pivotal facts against their sources.

When a missing document could change an opinion, explain its importance and whether the conclusion must be deferred or qualified. When it would add little, say why the available information is sufficient. The examiner should be able to explain how pivotal records affected the analysis; an inventory alone does not establish a thorough review. Record the date through which additional material was considered. [1-3]

3 Accepting questions beyond demonstrated expertise

Clinical experience alone does not establish proficiency in impairment methodology, occupational causation, or the requirements of a particular claim system. Conversely, extensive rating experience does not establish expertise in every proposed surgery or specialized psychiatric diagnosis.

Match expertise to each question. An examiner may be qualified to assess a musculoskeletal condition while needing specialist input on a complex nerve disorder or an unrelated organ system. Confirm applicable licensing, certification, and examiner eligibility requirements. A matching specialty title may be required in a particular system, but otherwise the relevant question is whether the examiner has the training, recent substantive experience, and knowledge needed for the issue. Disclose relevant limits on experience accurately. [8]

If an issue falls outside the examiner’s competence, limit the opinion, recommend an appropriately qualified evaluator, or arrange a clearly attributed multidisciplinary assessment where permitted. Each contributor should identify the work performed and conclusions accepted. Avoid an apparently comprehensive report in which no one takes responsibility for a disputed issue.

During the examination

4 Failing to explain the examiner role and examination process

An examinee may reasonably assume that meeting a physician establishes an ordinary treatment relationship. Unexplained differences between treatment and evaluation can create confusion about confidentiality, advice, reporting, and the purpose of personal questions.

Explain who requested the assessment, its purpose, who will receive the report under the applicable process, and the limits of confidentiality. State that the appointment is an evaluation rather than an ongoing treatment visit. Obtain and document the explanations, acknowledgments, and consent required for the examination and any procedures. A compulsory assessment requires attention to the governing authority; a generic consent form cannot resolve every procedural issue.

Avoid declaring that the examiner has no medical obligations. The AMA describes a limited patient-physician relationship in this setting. Duties include appropriate confidentiality and communication of important incidental findings. A potentially urgent finding requires a proportionate response and documentation, even when it is unrelated to the claim. [6]

Arrange qualified interpretation, accessibility accommodations, appropriate draping, and chaperones as needed. Confirm applicable rules concerning representatives, observers, photographs, and recording before the appointment.

5 Taking a selective or incomplete history

A history confined to the claimed event can produce a misleading account of causation and function. Relevant prior symptoms, previous treatment, nonoccupational activities, other employment, subsequent events, and the response to treatment may change the interpretation.

Build the history chronologically. Establish the pre-event baseline, mechanism or exposure, onset and evolution of symptoms, treatment, recovery, setbacks, and current status. Ask about actual occupational tasks, including force, repetition, duration, posture, lifting, and opportunities for recovery. A job title alone rarely establishes the physical exposure.

Describe daily activities with useful detail. “Can garden” is less informative than an account of the task, duration, assistance, breaks, and symptoms afterward. Explore psychosocial factors when relevant to the medical question, and explain that relevance. Avoid intrusive questioning without a clear purpose. Anxiety, depression, financial stress, or an adverse experience does not establish fabrication or exclude a concurrent physical disorder.

When the account differs from a record, invite clarification without accusation. Document the explanation and any remaining discrepancy. Distinguish “not documented in the records provided” from “did not occur.” An omitted symptom in a brief note has a different evidentiary meaning from a contemporaneous, focused assessment that expressly documents its absence. Conclude the interview by allowing the examinee to identify important omissions or correct misunderstandings.

6 Recording conclusions instead of examination findings

“Neurologically intact” and “shoulder examination normal” may omit the very findings needed to evaluate a disputed diagnosis. The reader should be able to determine which relevant functions were tested and what the tests showed. Missing documentation prevents verification; it is not automatic proof that a maneuver was never performed.

Record pertinent positive and negative findings with appropriate detail: side, anatomical location, measurement, technique, and clinical significance. For motion measurements, identify active or passive motion and record the repetitions or consistency information required by the applicable method. For strength, distinguish manual muscle testing from dynamometry. For sensation, document the distribution and method when material.

Templates should prompt an appropriate examination, not populate unperformed tests. Remove irrelevant defaults and correct copied laterality or normal findings. If a maneuver is unsafe, declined, or cannot be completed, state the reason and its effect on the assessment.

For impairment evaluations, collect the findings required by the governing rating method. Document relevant bilateral findings, but establish that the opposite limb is a suitable comparator before treating it as normal. Precise documentation helps another reviewer reproduce the reasoning; it should not imply greater measurement accuracy than the technique permits. [1-3]

7 Confusing inconsistent performance with intentional deception

Variable motion, weakness, pain behavior, or differences between reported and observed activity may warrant further assessment. They do not, by themselves, establish malingering. Pain, fear, fatigue, misunderstanding, language barriers, medication, and neurologic or psychological factors may affect performance.

Describe the specific discrepancy, repeat or clarify the task when appropriate, and explain whether the finding is reliable enough for the proposed use. An assessment of measurement validity answers a narrower question than an accusation about intent.

For example, an examiner might document: “Despite repeated instruction, active elevation was not reproducible within the requirements of the applicable measurement protocol. These measurements were not used for a motion-based impairment estimate.” That explanation is appropriate only when supported by the actual measurements and protocol. Variation within the method’s accepted tolerance should not be labeled invalid.

Describe the task, conditions, and limits of any informal observation or surveillance evidence. A brief activity establishes performance at that time; it may not establish the ability to sustain that activity for a full shift. A discrepancy in one task also does not invalidate every other finding.

Use validated symptom or performance measures within their proper scope and the examiner’s competence. Neither a single behavioral sign nor an isolated failed validity measure should be treated as proof that every complaint is false.

8 Allowing the schedule to determine the quality of the examination

An encounter becomes inadequate when the available time prevents the examiner from completing the necessary history, relevant examination, or clarification of material discrepancies. A long appointment can also be inadequate if it is poorly focused.

There is no universal duration that establishes a valid IME. Time should reflect the number and complexity of conditions, record volume, communication needs, and required procedures. Any applicable minimum duration or other examination rule must also be followed.

Schedule sufficient time and allow adjustments when complexity becomes apparent. Record actual times or durations where required or useful, distinguishing time with the examinee from record review and report preparation. Do not include waiting time as physician examination time.

Attorneys and claims professionals should assess whether the reported work could reasonably have been completed during the encounter, rather than relying on an arbitrary threshold. Duration provides context. The adequacy of the documented evaluation remains the central issue.

Analyzing the medical evidence

9 Substituting chronology or imaging for causation analysis

Symptoms beginning after an event are relevant, but sequence alone does not establish the cause. An imaging abnormality also requires interpretation: it may be clinically relevant, longstanding, incidental, newly symptomatic, or unrelated to the claimed mechanism.

Begin with a supported diagnosis and a sufficiently defined event or exposure. Distinguish general causation, whether the event or exposure can produce the condition, from specific causation, whether it caused or contributed to this individual’s condition under the applicable standard. Assess anatomical consistency, timing, exposure magnitude, prior status, clinical course, competing explanations, and the relevant science. General epidemiologic associations need an explanation of their applicability to the individual exposure and diagnosis.

Identify disputed factual assumptions. If a proposed mechanism is unverified and the answer depends on it, provide an appropriately conditional opinion rather than resolving a factual dispute through medical authority. A normal examination months later may inform current status without disproving an earlier, documented injury.

The causal contribution of work to a new injury may differ from its contribution to symptoms arising from a preexisting disorder. Explain whether the evidence supports a new condition, a temporary worsening, a lasting worsening, or another mechanism. Define terms such as aggravation and exacerbation because their legal use varies.

The AMA causation text provides a framework for investigating these issues; its publication does not make it controlling law in every forum. Explain the connection between the scientific evidence and the facts of the individual case rather than treating either a textbook citation or a temporal association as a complete analysis. [4]

10 Assuming maximum medical improvement from the calendar

Maximum medical improvement, or MMI, is not established merely because a certain number of months has passed, treatment has ended, or the examinee has returned to work. The governing definition must be applied to the expected clinical course.

Identify the condition being assessed, its stability, the treatment completed, and any reasonably anticipated intervention that could materially change the outcome. The AMA Guides frame MMI in terms of a well-stabilized condition and the expected course, not simply elapsed time. Explain the clinical basis for the MMI date and apply the definition required by the claim system. Different conditions may stabilize at different times.

MMI does not necessarily mean complete recovery, freedom from symptoms, or absence of future maintenance care. Conversely, a contemplated intervention with a realistic prospect of meaningful improvement may make a final permanent impairment rating premature. Consider the relevant evidence rather than relying solely on a treating provider’s label or an administrative claim status.

If a final rating cannot yet be supported, distinguish any provisional estimate from a permanent assessment and explain what would permit finalization. Missing rating data are a separate problem: a person may be at MMI while the available documentation remains insufficient to calculate impairment. [2,3]

11 Using the wrong impairment method or presenting an unverifiable number

Impairment errors often arise before arithmetic begins. The examiner may use the wrong edition, choose an inapplicable table, mix criteria from different methods, or rate overlapping consequences twice. Software cannot correct an incorrect diagnosis or an unsupported input.

First confirm the required edition and, where relevant, the specific digital version, effective date, and jurisdictional modifications. The newest publication is not automatically the authorized standard for an individual claim. Apply relevant corrections and errata as appropriate to that standard.

A defensible rating explains the diagnosis, selected method, qualifying findings, and each calculation. For a method that uses classes and grade adjustments, show the applicable class, default grade, and permitted adjustments. Explain which modifiers were used or excluded and why; do not reuse class-defining findings as modifiers where the method prohibits it. In a motion-based method, identify the accepted measurements and applicable figures or tables. Explain a material choice between methods without selecting one merely because it produces a preferred percentage. Both editions require the findings to be connected to the rating criteria. [2,3]

Check conversions carefully. A digit percentage, hand percentage, upper extremity percentage, and whole person percentage represent different scales. For illustration, under the Fifth Edition upper extremity conversion, 10% upper extremity impairment converts to 6% whole person impairment; it is not 10% whole person impairment. Identify the conversion reference, such as Table 16-3 on page 439, and follow applicable rounding instructions.

Check combination rules separately. Where combination is required, two 10% whole person impairments yield 19% under the Combined Values Chart, rather than an arithmetic total of 20%. Some findings must be added within a prescribed method before conversion or combination. Follow the specific instructions and avoid double counting.

Do not turn regional pain or radiating symptoms into ratable radiculopathy without meeting the applicable diagnostic criteria. Do not treat a manual muscle grade, a side-to-side weight-lifting difference, and a percentage motor deficit as interchangeable measurements. A diagnosis meeting ordinary clinical criteria may still lack the specific documentation required for a particular Guides rating pathway.

Insufficient documentation is not equivalent to a demonstrated 0% impairment. Identify whether the evidence supports no ratable impairment under the applicable method, a supported rating with stated limits, or an inability to calculate a dependable rating. A limited record also does not authorize inventing the missing findings. Show the total rating and any supported apportionment separately.

12 Treating impairment as a direct measure of disability or work capacity

A whole person impairment percentage does not automatically establish the same percentage of occupational disability, lost earnings, or inability to perform a particular job. The AMA identifies impairment as one medical input into a broader compensation process. [7]

Assess work ability against actual demands. Identify what the person can do, what creates a medically supported risk, and what may be limited by symptoms or endurance. Explain the evidence supporting restrictions rather than substituting a diagnosis or rating percentage for a functional analysis.

“Light duty” is often too vague. Describe relevant lifting, carrying, reaching, positioning, repetition, and duration limits, along with expected duration and reassessment needs. Avoid exact limits unsupported by the examination, testing, or clinical evidence. If the job description is missing, state the assumptions and consequences for the opinion.

A functional capacity evaluation can provide useful evidence, but identify the tasks tested, reliability findings, duration, and relationship to the actual job. Do not assume that a short test measures sustainable performance over an entire workweek. When restrictions are precautionary or temporary, explain their basis and when they should be reassessed.

13 Assigning apportionment percentages without an evidentiary basis

The causes of a disease, the causes of permanent impairment, and the causes of occupational disability are related but different questions. A percentage intended to answer one cannot automatically answer the others. Establish what the referral and governing framework require before making an allocation.

Age, an imaging description of degeneration, or a prior claim does not by itself establish a particular deductible percentage. Conversely, an asymptomatic preexisting condition is not automatically irrelevant under every legal apportionment framework. Explain the condition’s contribution, the evidence for it, and how the proposed allocation follows from that evidence.

If subtracting a prior impairment is permitted, verify that both ratings are supported and methodologically comparable. A prior award is not automatically a valid medical baseline for a new calculation. Distinguish a documented prior rating from a retrospective estimate, and explain any conversion between standards. Where a required estimate can be made, provide its reasoning and limits; where it cannot, identify the missing foundation. [1-4]

14 Reviewing treatment through hindsight or personal preference

A poor result does not, by itself, establish that treatment was unreasonable. An examiner reviewing past care should consider the clinical information, options, and relevant standards available when the decision was made. A different treatment preference is not sufficient reasoning for rejection.

Identify the condition treated, the proposed or completed service, its clinical indication, and the expected benefit or documented response. Apply any controlling treatment standard and explain the applicability of other evidence-based guidance. When the guideline permits exceptions, assess whether the case supports one. Do not confuse a departure from a guideline with proof of negligence.

Separate medical necessity, relationship to the condition under review, reasonableness of frequency or duration, and reasonableness of cost. These are distinct questions. An itemized invoice may establish what was billed without establishing why it was needed, while a sound clinical indication does not establish that a bundled charge is reasonable.

For future care, identify the purpose, likely timing, frequency or duration, and circumstances that would make the service appropriate. Distinguish continuing maintenance from speculative procedures. Clarify that recommendations are evaluative opinions, rather than treatment orders or automatic benefit authorizations. [1]

Writing the report

15 Leaving referral questions unanswered

A detailed report can still fail its purpose when it never answers a central question. The reader should not have to infer the examiner’s opinion from a chronology or reconcile incompatible statements scattered through the document.

Restate each referral question and give a direct response followed by the reasoning. Use yes or no when the evidence supports that format. When it does not, say whether the issue is indeterminate, outside the examiner’s expertise, or dependent on a specified assumption or missing fact.

For each material opinion, identify the evidence relied on, the relevant medical reasoning, and significant limitations. Address contrary evidence that could reasonably change the conclusion. A statement that something is “not supported” should explain whether the evidence affirmatively weighs against it or is simply insufficient to decide.

Before signing, compare the answers with the diagnoses, MMI discussion, restrictions, and impairment section. An unexplained contradiction between those sections can change the meaning of the report. A short diagnosis list identifying conditions as related, unrelated, incidental, or unresolved can make the analysis easier to follow when those distinctions are within the assignment.

16 Using confidence language that outruns the evidence

“Possible,” “probable,” and “established” convey different levels of support. An examiner weakens an opinion by using them interchangeably or by attaching absolute language to uncertain facts.

Use the standard requested by the governing forum and explain the basis for meeting it. “Reasonable medical probability” may be appropriate in some settings, but no phrase substitutes for analysis. A legal requirement expressed as more likely than not does not require the physician to invent an individually calculated probability such as 73%.

Separate confidence in the diagnosis from confidence in its cause, permanence, or functional consequences. A diagnosis may be well supported while the occupational attribution remains unresolved. Similarly, rejecting one proposed explanation does not establish another by default.

Conditional opinions can be useful when disputed facts matter. Identify the assumption and explain how a different finding would affect the conclusion. Words such as “possible” are appropriate for a differential diagnosis or genuine uncertainty; the error is presenting possibility as proof or hiding uncertainty behind confident language.

Admissibility also requires attention to the rules of the forum. For example, Federal Rule of Evidence 702 addresses qualifications, helpfulness, sufficient facts or data, reliable methods, and reliable application to the case. A statement of medical probability does not replace those requirements, and that federal rule should not be presented as the governing rule for every administrative proceeding. [5]

17 Making the reader work through disorganized prose

The report must be understandable to people who did not attend the examination and may have no medical training. A long chronology without analysis, unexplained abbreviations, or dense technical language can obscure even a sound opinion.

Use descriptive headings and a consistent sequence: purpose, records reviewed, relevant history, examination, diagnostic studies, diagnoses, analysis, and responses to the referral questions. Summarize records selectively enough to remain readable while explaining all evidence material to the opinions; a transcription of the entire file is rarely useful. A short overview may help the reader understand the major conclusions before examining the detail. Use readable typography and any prescribed format; font size alone does not establish report quality.

Explain technical terms when they matter. Describe how a finding affects the disputed issue rather than merely listing it. Include a timeline or comparison table when it makes dates, measurements, or competing findings easier to evaluate.

Proofread names, dates, laterality, units, diagnoses, and calculations. Check speech-recognition errors and copied template text. The examiner must review the complete final document, including attachments and any changes introduced during administrative processing, before adopting and signing it.

18 Replacing analysis with advocacy

An opinion becomes difficult to trust when it disparages the examinee, attributes motives to a treating clinician, or uses loaded language in place of evidence. “The surgeon performed unnecessary surgery for financial gain” makes a very different claim from a documented assessment that the available indications did not meet a specified treatment criterion.

Address clinical decisions and evidence directly. If disagreeing with another physician, identify the precise disagreement: diagnosis, factual premise, test interpretation, method, or conclusion. Consider whether that physician had information available at the time that the examiner lacks.

Describe observed behavior and its relevance without making unsupported character judgments. Avoid treating the existence of a claim, attorney representation, or a compensation incentive as proof of dishonesty. Equally, do not accept an account uncritically because it supports the referring party’s position.

Apply the same evidentiary standard to conclusions that favor either side. A useful final check is whether the examiner would explain the evidence in the same way if retained by a different party.

19 Selecting evidence that supports the conclusion and omitting the rest

Selective citation can occur in both case records and published literature. A report may quote a favorable examination while ignoring a later contradictory finding, or cite a study without acknowledging that its population and exposure differ from the case being assessed.

Distinguish observed facts, reported symptoms, another clinician’s interpretation, and the examiner’s inference. “The worker reported weakness” is not equivalent to documented motor loss. Likewise, an imaging finding does not automatically establish its date of onset, symptom relevance, or cause.

Address material contrary evidence and explain why it receives different weight. Consider timing, technique, reproducibility, clinical context, and access to information. Do not automatically choose the largest deficit, the smallest deficit, or the newest measurement. Explain whether it is representative and suitable for the required method, considering recovery, intervening treatment, symptom fluctuation, and measurement technique. Do not average or otherwise reconcile measurements unless the method and clinical circumstances support that approach.

Verify quotations and citations against their sources. Identify relevant limitations in the literature and avoid unsupported claims that a finding is universally accepted. Administrative staff, summarization tools, and calculators may assist the workflow; the physician remains responsible for the factual accuracy and reasoning of the signed opinion.

20 Ignoring conflicts or treating disclosure as a cure

Financial relationships, repeat referral arrangements, prior treatment, personal connections, and other interests may affect independence or create a reasonable concern about it. A standard statement of impartiality does not resolve a substantive conflict.

Screen for conflicts before acceptance and reassess if new information emerges. Make disclosures required by the forum and explain relevant relationships accurately. Compensation should reflect the professional work and should not depend on a favorable opinion or case outcome. AMA medical testimony guidance addresses honesty, competence, and appropriate compensation. [8]

A referral pattern concentrated among insurers, employers, or claimant representatives does not by itself prove bias. Conversely, a balanced referral mix does not establish impartiality. Examine whether the physician evaluates unfavorable evidence fairly, maintains independent conclusions, and resists pressure to alter an opinion without a medical basis.

If a conflict prevents an independent assessment, disclosure alone may be inadequate. Decline, withdraw, or use the process required by the governing rules. Clearly distinguish the role of a treating physician from that of an independent evaluator.

After the examination and report

21 Assuming the same communication rules apply in every case

One-sided communications are not automatically prohibited in every medicolegal setting. The rules depend on whether the physician is a retained expert, a statutory evaluator, a jointly appointed examiner, or acting in another defined role.

For example, California’s qualified and agreed medical evaluator framework contains specific communication and information-exchange requirements. Federal Rule of Civil Procedure 26(b)(4)(C) provides trial-preparation protections for certain attorney-expert communications, with exceptions involving compensation, specified facts or data, and relied-on assumptions. That discovery protection does not override restrictions applicable to a statutory or court-appointed examiner. Verify the rules for the actual role and proceeding. [9,10]

Establish the permitted communication process at the outset. Confirm requirements for written contact, simultaneous service, advance disclosure of records, and substantive discussions. Document material information received and do not allow a private account of disputed facts to become an undisclosed foundation for the opinion.

Distinguish legitimate requests for clarification from pressure to produce a desired result. Any substantive revision must remain the physician’s own considered opinion. Where communication requirements are uncertain, obtain clarification before the discussion through the appropriate procedural channel.

22 Missing deadlines or losing control of report delivery

A late report can disrupt treatment decisions, hearings, benefit determinations, and case management. Depending on the governing rules, consequences may include exclusion, sanctions, or other procedural remedies; they are not universal or automatic.

Confirm the actual deadline, required recipients, delivery method, and any required certification before accepting the assignment. Calendar an internal completion date that allows time for factual review and corrections. Notify the appropriate party promptly when missing information or an unexpected problem threatens timely completion, and seek an extension through the authorized process where necessary.

Release the signed report through a secure, authorized channel. Verify recipients, attachments, and version before sending. Retain an appropriate transmission record. An email read receipt alone may not establish legally effective service or compliance with a prescribed filing process.

Distinguish completing the report from delivering or filing it. The practice should be able to establish which version was sent, to whom, and when.

23 Failing to preserve the material underlying the opinion

Months or years later, testimony may turn on an original measurement, questionnaire response, or record that was not reproduced in the report. A defensible file preserves enough information to reconstruct the assessment.

Maintain the records reviewed, source identifiers, contemporaneous notes, examination measurements, questionnaires, calculations, relevant correspondence, permitted photographs or recordings, signed report, and supplements. Identify assistance provided by others where relevant or required. Preserve materials in a form that remains readable and retrievable.

Set retention periods according to the applicable professional rules, statutes, contractual obligations, and litigation requirements. There is no single universal seven-year or ten-year rule for every IME. A preservation obligation or litigation hold may extend beyond the ordinary destruction schedule.

Preserve original notes and data; distinguish a later explanatory annotation from a contemporaneous entry and date it accurately. Do not assume every draft or communication is either automatically discoverable or automatically protected. Obtain appropriate advice on those distinctions while preserving material subject to applicable obligations. Never recreate a missing measurement as though it were an original contemporaneous observation.

24 Treating confidentiality as an administrative afterthought

An IME file may contain extensive medical, employment, financial, and third-party information. Inappropriate disclosure can harm the examinee and compromise the evaluation process.

Use access controls, secure transmission, appropriate storage, and verified recipients. Apply the applicable authority for collection and disclosure, including any special restrictions on sensitive records. A confidentiality acknowledgment is not unrestricted permission to circulate every document in the file.

Include enough information to support the opinion, while avoiding unnecessary exposure of unrelated sensitive or third-party information. Any redaction should preserve material context and comply with applicable disclosure requirements. Provide access and reports through the process required for the particular claim or proceeding.

When using outside administrative services or digital tools, confirm that handling of confidential information is authorized and appropriately protected. Protect source files, backups, and temporary working copies as well as the final report.

25 Defending an error instead of correcting it

New evidence and genuine mistakes require reassessment. Refusing to reconsider a conclusion can be more damaging than acknowledging that the original factual basis was incomplete.

If an error is identified, determine whether it is clerical or substantive and what conclusions it affects. Issue a dated correction or supplemental report through the authorized process. Identify the original report and the precise correction, explain the reason, and state whether the diagnoses, causation opinion, MMI date, impairment, or restrictions change.

When new records arrive, identify them and explain their effect. Avoid an unexplained statement that the opinion is unchanged. If the evidence changes the conclusion, explain why; if it does not, address the material point it raises.

Preserve the original report and an understandable version history rather than silently replacing the issued document. During testimony, distinguish what was known at the initial evaluation from what became available later. Independence includes the willingness to revise an opinion when the evidence warrants it.

A final review that each stakeholder can use

Physicians should review the complete report for factual accuracy, methodological consistency, responsiveness, and fair treatment of contrary evidence. A peer reviewer can help resolve a difficult rating or specialized issue, but the signing examiner must understand and accept the analysis. Quality review should correct errors and improve clarity while preserving the examiner’s independent conclusions.

Attorneys should assess whether the opinion addresses the actual issue under the applicable standard, identifies its assumptions, and explains material weaknesses. Claims professionals should check whether the report provides enough medical reasoning to support the specific decision under consideration. Request supplements to resolve specific deficiencies, identify omitted evidence, or clarify reasoning. An unfavorable conclusion is not itself a quality defect. Additional pages are useful when they resolve an evidentiary or analytical need.

Before relying on an IME, ask:

  • Is the assignment clear and within the examiner’s demonstrated competence?
  • Are the material records identified, understood, and accurately represented?
  • Does the history address the relevant baseline, event or exposure, and subsequent course?
  • Are the examination findings sufficiently documented for their intended use?
  • Are diagnosis, causation, MMI, impairment, work ability, and any apportionment analyzed separately?
  • Can another qualified reviewer follow and check the rating calculations, including exclusions and conversions?
  • Does any treatment opinion address the actual indication and distinguish necessity from cost or authorization?
  • Does each referral question receive a reasoned answer with appropriate limitations?
  • Are contrary evidence, conflicts, communication requirements, and confidentiality addressed?
  • Is the final signed report delivered correctly and supported by a preserved file?

A useful IME explains what is established, what remains uncertain, and how each conclusion follows from the evidence. When the opinion changes, the report explains why. That transparency helps the physician give accurate testimony and helps attorneys and claims professionals make decisions they can justify.

For focused education on impairment assessment and the accurate application of the AMA Guides, explore the training resources at AMAGuides.com.

References and further reading

1. Brigham C, Direnfeld LK, Feinberg S, Kertay L, Talmage JB. Independent Medical Evaluation Best Practices. AMA Guides Newsletter. September/October 2017;22(5):3-18. This is professional guidance; its recommendations must be considered with current requirements and the individual assignment.

2. American Medical Association. Guides to the Evaluation of Permanent Impairment. 5th ed. 2001. Chapters 1 and 2; Section 2.6, Preparing Reports, pp 21-22; Chapter 16, Table 16-3, p 439; Combined Values Chart.

3. American Medical Association. Guides to the Evaluation of Permanent Impairment. 6th ed. 2008. Chapter 2, Sections 2.5c, Apportionment; 2.5e, Maximum Medical Improvement; and 2.7, Preparing Reports, pp 28-29. Verify the applicable edition or digital version for each claim.

4. American Medical Association. AMA Guides to the Evaluation of Disease and Injury Causation. 2nd ed. 2014. Chapters 4, Methodology; 6, The Causality Examination; and 7, Report Writing.

5. Federal Rules of Evidence. Rule 702, Testimony by Expert Witnesses. Online source

6. AMA Code of Medical Ethics. Opinion 1.2.6, Work-Related and Independent Medical Examinations. Online source

7. American Medical Association. AMA Guides to the Evaluation of Permanent Impairment: an overview. Online source

8. AMA Code of Medical Ethics. Opinion 9.7.1, Medical Testimony. Online source

9. California Code of Regulations. Title 8, Section 35, Exchange of Information and Ex Parte Communications. Online source

10. Federal Rules of Civil Procedure. Rule 26(b)(4)(C), Trial-Preparation Protection for Communications Between a Party’s Attorney and Expert Witnesses. Online source