Definition
Malingering is the deliberate simulation or exaggeration of physical or mental illness, injury, or disability for the purpose of obtaining a tangible benefit or avoiding an unwanted obligation. The feigning is conscious and intentional — distinguishing malingering from genuine illness and from the unconscious symptom production associated with certain psychiatric conditions.
Malingering appears across several distinct legal contexts:
1. Workers' compensation and personal injury: A claimant who fabricates or exaggerates symptoms to sustain or inflate a claim is said to be malingering. This goes to the credibility of the claim and may constitute fraud.
2. Military and conscription law: Historically, malingering to avoid military service or duty was a punishable offense under military law. The Uniform Code of Military Justice (UCMJ, 10 U.S.C. § 915, Article 115) expressly criminalizes feigning illness, physical disablement, mental lapse, or derangement to shirk duty.
3. Criminal competency proceedings: A defendant who simulates mental illness to be found incompetent to stand trial or to support an insanity defense may be identified as malingering. Forensic evaluators use structured assessment instruments to detect it.
4. Disability and benefits determinations: In Social Security disability, insurance claims, and pension proceedings, malingering may defeat entitlement entirely and expose the claimant to fraud liability.
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Common Language
Modern common usage (Wiktionary): The intentional feigning of an illness or injury for personal gain or to avoid a responsibility, such as work, military service, or legal consequences.
Historical common usage (Webster's 1913): To feign illness or inability in order to avoid duty or work. Frequently applied to soldiers or sailors pretending sickness to escape service.
The common and legal meanings are closely aligned. The legal significance of the term, however, lies less in its definition and more in its consequences: in legal proceedings, a finding of malingering is not merely a factual observation — it is typically fatal to credibility, may transform a compensable claim into a fraudulent one, and in military contexts carries criminal penalties. The ordinary word describes a behavior; the legal label carries formal evidentiary and liability weight.
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Common Confusion
Malingering is frequently confused with two related but distinct concepts:
Factitious disorder (Munchausen syndrome): A psychiatric condition in which a person intentionally produces or feigns symptoms, but the motivation is psychological (to assume the sick role) rather than external gain. Courts and forensic evaluators must distinguish the two because factitious disorder is a genuine mental illness, while malingering is deliberate fraud. The DSM-5 distinguishes them explicitly, though the distinction can be difficult to draw in practice.
Somatoform/somatic symptom disorders: These involve genuine subjective experience of symptoms without adequate organic explanation. A patient with somatic symptom disorder is not faking — symptoms are real to them. Confusing this with malingering can result in wrongful denial of legitimate claims.
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Why It Matters in Research
Malingering sits at the intersection of law and medicine, which creates research complexity. Legal sources treat it as a matter of fraud or credibility; medical and psychiatric literature treat it as a behavioral or diagnostic category. Researchers working in workers' compensation, tort, or military law will need to move between both bodies of material.
The term has been operationalized in forensic psychology through structured tools — most notably the Structured Interview of Reported Symptoms (SIRS) and the Miller Forensic Assessment of Symptoms Test (M-FAST) — and expert testimony on malingering detection is now a standard feature of contested disability and competency litigation. Research into evidentiary admissibility of these instruments requires consulting both legal and clinical literature.
In historical sources, the term appears most frequently in military law and army medical contexts through the nineteenth and early twentieth centuries. It migrates into civilian workers' compensation doctrine as that body of law develops in the early twentieth century. Researchers working in pre-1920 sources should expect the military framing to dominate.
Bouvier's does not contain a standalone entry for malingering — the term was not a primary doctrinal category in the classical common law lexicon. This reflects the term's practical, factual character: it was more a medical and disciplinary label than a formal legal concept. Researchers should not expect coverage in classical legal dictionaries and should look instead to military law digests, insurance law treatises, and later workers' compensation materials.
Jurisdictional variation is modest at the definitional level but significant in consequence: some states treat malingered workers' compensation claims under general fraud statutes, others under specific insurance fraud provisions, and still others handle it administratively. The UCMJ provides the most precise statutory treatment.
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Historical Dictionary Support
Bouvier's Law Dictionary does not contain a standalone entry for malingering. The related entry — MALITIA — addresses express evil design and malice, derived from Blackstone. This confirms that classical common law dictionaries treated deliberate deceit primarily through the doctrinal lens of malice and fraud rather than the behavioral category of malingering as such.
The absence is itself informative. Malingering was recognized in military regulations and medical literature well before it achieved prominence in civil law. Its migration into civilian legal discourse followed the rise of employers' liability and workers' compensation schemes. Historical legal dictionary silence on the term is a research trap: the concept was present in the law long before it had a settled doctrinal name in civilian courts.
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Jurisdictional Note
The most precise legal treatment of malingering is federal, through Article 115 of the UCMJ, which applies to all U.S. military personnel. In civilian contexts, malingering as fraud is governed by a patchwork of state insurance fraud statutes, workers' compensation anti-fraud provisions, and common law fraud doctrine. Researchers should identify the specific benefit or obligation at issue before selecting the applicable legal framework.
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Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Fraud; Workers' Compensation; Competency to Stand Trial; Military Justice
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