organic brain syndrome
Enable an agent to interpret an organic brain syndrome label, record the associated mental dysfunction and causal evidence, and identify what requires clinical clarification before acting.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 18 findings · 30 questions
Label meaning and classification Establish what organic brain syndrome means in the particular record before assigning a modern interpretation.
Original clinical usage
Preserve the wording, author and context of the syndrome assertion.
Intended syndrome meaning
Determine whether the term denotes a specified syndrome, a provisional explanation or an unexplained historical label.
- What did the originating clinician or source mean by organic brain syndrome in this record? definition
- Who applied the label, when, and was it subsequently copied without reassessment? provenance
Versioned concept mapping
Evaluate contemporary classification candidates without assuming equivalence.
Supported diagnostic crosswalk
Retain the issuing authority, release and evidence supporting any proposed replacement concept.
- Which ICD-10 variant, ICD-11 release or SNOMED CT edition contains a candidate concept, and what is the mapping relationship? provenance
- Which criteria and issuing body support the candidate diagnosis, and which required elements remain undocumented? definition
- Does an existing Vercy model own the clarified concept, requiring a link instead of a duplicate publication? boundary
Mental change and functional expression Describe the actual dysfunction behind the organic brain syndrome label.
Baseline and domain profile
Relate current observations to prior functioning across relevant mental domains.
Documented mental change
Separate reported change, directly observed impairment and uncertainty about baseline.
- Which changes in attention, awareness, memory, reasoning, language or behavior are documented relative to baseline? measurement
- Which observations come from the person, an informant, examination or testing, and where do they disagree? provenance
Assessment and daily function
Interpret assessment findings alongside concrete daily abilities.
Interpretable impairment evidence
Record measurement conditions and avoid attributing every functional limitation to cognition.
- Which instruments and versions were used, and how did language, education, sensory limitations or testing conditions affect interpretation? measurement
- Which daily activities now require assistance because of mental dysfunction rather than physical limitations or environmental barriers? boundary
Onset, course and superimposition Represent when dysfunction appeared and how successive states relate.
Onset and fluctuation
Establish the timing and variability of the presenting change.
Temporal syndrome pattern
Build an evidence-linked timeline without assigning a subtype from timing alone.
- When was the person last at their usual baseline, and how certain is the onset estimate? measurement
- What repeated observations establish fluctuation, persistence or discrete episodes? measurement
Longitudinal state and overlap
Distinguish continuing impairment from additional acute changes and subsequent outcomes.
Episode on background impairment
Preserve the distinction between the underlying syndrome trajectory and superimposed changes.
- Is the current change a new episode on pre-existing cognitive impairment, and what evidence separates the two? boundary
- What follow-up demonstrates recovery, residual impairment, stability or progression, and over what interval? measurement
Causal attribution and alternatives Evaluate the evidence behind the organic attribution and competing explanations.
Medical and exposure attribution
Connect candidate causes to the observed dysfunction and its timeline.
Supported causal contributors
Record each proposed contributor with evidence, contradictions and unresolved attribution.
- Which medical conditions, injuries, medications or exposures are proposed contributors, and what supports each causal link? provenance
- Does the timeline support each attribution, or is the candidate merely a coexisting condition? boundary
- Which examination, laboratory, imaging or other findings support or challenge the proposed explanation? measurement
Differential and coexisting states
Keep alternative and concurrent explanations visible.
Unresolved explanatory boundaries
Avoid treating organic and psychiatric explanations as mutually exclusive categories.
- Which alternative or coexisting psychiatric, developmental, sleep-related or substance-related explanations remain under consideration? boundary
- What additional evidence would distinguish these explanations without assuming that the label proves a structural brain lesion? action
Clinical review and reassessment Connect the syndrome description to justified review, support and updating.
Acute change review
Identify whether a current change requires escalation through an applicable clinical pathway.
Review trigger and responsibility
Attach escalation decisions to observed changes and an identified clinical authority.
- Do documented new confusion, altered awareness or other acute changes meet the applicable pathway's escalation criteria? action
- Which clinician or service should review the change, and which observations and timeline must accompany the handoff? action
Support and label revision
Track practical support needs and the evidence required to update the syndrome interpretation.
Bounded support and follow-up
Tie assistance to demonstrated limitations and preserve the history when a diagnosis changes.
- Which observed limitations justify communication or daily-task support without assuming global decision-making incapacity? action
- What reassessment and responsible reviewer will determine whether to retain, qualify or replace the organic brain syndrome label? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these check these first hold for the sense of organic brain syndrome this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these kinds and varieties hold for the sense of organic brain syndrome this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these identifiers and schemes hold for the sense of organic brain syndrome this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these standards and regulation hold for the sense of organic brain syndrome this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these real-world use hold for the sense of organic brain syndrome this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these failure modes and hazards hold for the sense of organic brain syndrome this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these regional variation hold for the sense of organic brain syndrome this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of organic brain syndrome this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.STA
- Other names and narrower kinds
- psychoorganic syndrome, postencephalitic syndrome, Prader-Willi-like syndrome, transient organic mental disorder, psycho-neurologic disturbance, Myxedematous psychosis, temporal lobe syndrome
What it is Filled
Organic brain syndrome is a historical umbrella term for disturbances of cognition, consciousness, behaviour or emotion attributed to brain dysfunction from disease, injury or physiological disturbance, rather than a single disease with uniform diagnostic criteria.
In scope
- Meaning and provenance of an organic brain syndrome label in its original clinical context
- Cognitive, attentional, behavioral and functional changes relative to the person's baseline
- Evidence attributing the syndrome to brain dysfunction and an underlying medical condition or exposure
- Onset, fluctuation, persistence and documented recovery or progression
- Versioned diagnostic mappings, unresolved alternatives and syndrome-specific action constraints
Out of scope
- The patient as a person and their complete longitudinal health record
- The underlying neurological or systemic disease as an independently modeled condition
- The anatomy of the brain or the physical lesion itself
- The clinical encounter, admission or episode of care
- Detailed treatment protocols and medication prescribing
- Independent models of delirium, dementia or other neighboring syndromes already represented in the catalogue
Why it exists Filled
Enable an agent to interpret an organic brain syndrome label, record the associated mental dysfunction and causal evidence, and identify what requires clinical clarification before acting.
Distinguishing features Filled
- Require the source's intended meaning: the label alone does not establish a specific cause, severity or contemporary diagnosis.
- Separate an observed syndrome of mental dysfunction from a brain lesion or medical disease without documented mental effects.
- Check change from prior functioning instead of equating lifelong cognitive differences or an isolated low test score with this syndrome.
- Distinguish acute, fluctuating changes from persistent impairment and record possible superimposition rather than treating these patterns as interchangeable.
- Require evidence for causal attribution; the word organic alone must not exclude psychiatric contributors or establish a structural lesion.
What robots and AI may and may not do Filled
Must not
- Diagnose a person or label their behaviour with this term.
- Use the term to dismiss a person's capacity or decisions without assessment.
- Present the historical label as a current diagnosis.
- Share a person's cognitive condition without consent.
Only with a human decision
- Any judgement about a person's mental capacity.
- Treatment decisions for acute confusion.
May
- Explain the historical meaning of the term and how current classifications replace it.
- Direct people with confusion or memory changes to medical care.
Moral aspects Filled
- Older and ill people with cognitive changes risk losing a say over their own lives.
- Sudden confusion can signal a treatable emergency that labelling may hide.
Who is affected
- People with cognitive impairment
- Families and carers
- Older people
Owners Filled
Steward
The treating clinician; health records belong to the patient's health service.
Links to other meta-models Filled
parent
- Q30314000 - registry parent class
- Q7101840 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.organic-brain-syndrome
- Wikidata: Q360341 (https://www.wikidata.org/wiki/Q360341)
Direct properties not applicable Not applicable
- Original label and intended meaning: Verbatim term; source-defined meaning; ambiguous or unspecified
- Diagnostic assertion status: Historical record only; suspected; clinician-established; disputed; superseded
- Onset relative to baseline: Date or estimated interval in hours, days, months or years; uncertainty recorded
- Affected mental domains: Attention; awareness; memory; executive function; language; perceptual-motor function; behavior; other documented domain
- Assessment result: Instrument-specific score with instrument, version, date, reference population and testing conditions
- Temporal course: Fluctuating; improving; stable; progressive; episodic; unresolved
- Functional effect: Affected daily task; prior ability; current assistance required; contribution of noncognitive limitations
- Attributed cause: Linked condition, injury, medication or exposure with supporting evidence and attribution confidence
- Classification mapping: Target concept and code; issuing body; system edition or release; jurisdiction; mapping relationship
Plane XCT: no invented physical properties.
Recognition not applicable Not applicable
Not applicable
This clinical umbrella concept has no distinctive visible appearance, and observed behaviour alone cannot establish its cause.
Capabilities and actions required Filled
- Extract the original label and distinguish historical documentation from an active diagnostic assertion.
- Organize baseline, observations and assessment results into a time-linked syndrome profile.
- Compare proposed causes with supporting, contradictory and missing evidence.
- Suggest candidate contemporary concepts for clinician review while preserving mapping uncertainty.
- Flag documented acute changes for review under an applicable clinical escalation pathway.
- Track reassessment and link to a more specific existing model when the syndrome is clarified.
Hazards and failure modes required Filled
- Missed treatable causes such as infection or poisoning.
- Falls and wandering during acute confusion.
Standards and interfaces required Filled
- The World Health Organization's ICD-10 includes the F00-F09 category of organic, including symptomatic, mental disorders, although this historical umbrella label alone does not establish a specific code.
Context of use required Filled
- This historical label appears in older clinical records and administrative documents describing mental dysfunction attributed to brain disease, injury or physiological disturbance.
- Interpreting the label requires clarification of the actual symptoms, time course and evidence for an underlying cause because it does not identify a single disorder.
Sources Filled
- Wikidata item Q360341: organic brain syndrome - identity and sense of the item
- Wikipedia: Organic brain syndrome - general description of the item
Open questions
- What source supplied this registry entry, and did it intend a broad historical umbrella or a narrower syndrome definition?
- Which authoritative ICD-10, ICD-11 and SNOMED CT mappings are valid for that intended meaning, with which editions and jurisdictions?
- What criteria and issuing authorities support any proposed equivalence with delirium, neurocognitive disorder, encephalopathy or an organic mental disorder category?
- Which prevalence estimates use an explicit definition of organic brain syndrome and specify population, setting, ascertainment method and year?
- Does an existing Vercy world model already cover the intended concept, and should this entry resolve to that publication?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q360341/spec.json