REFERENCE · DIAGNOSTIC TECHNIQUE

Tic and Somatic Cough Assessment

Clinician-focused educational reference; assessment requires appropriate training, consent and an individual safety plan.

Purpose and Suitability
Anatomy and Physiology
Preparation and Safety
Performing the Assessment
Interpreting Findings
Explaining the Result
Evidence and Limitations
Media and Accessibility
Research and Sources

Purpose and Suitability

Consider a tic-related cough pattern after appropriate medical cough assessment. Keep tic cough, somatic cough disorder and functional tic-like symptoms distinct; a cough-like sound alone does not choose among them.

Tic: A recurrent movement or sound assessed within a characteristic clinical pattern. Premonitory urge: A sensation that precedes a tic.

CHEST places tic cough within a tic framework. The separate functional-tics overview describes the broader specialist differential. [1][2]

Anatomy and Physiology

The observed sound comes from respiratory and laryngeal action. Naming the sound does not identify its cause. The assessment concerns the sequence around it: any preceding sensation, ability to defer it, variation and other movements or sounds.

Do not infer that a person’s temporary control means the symptom is deliberate. The clinical comparison is not a test of honesty.

Preparation and Safety

Agree what the person is comfortable discussing or demonstrating. Use an existing history before asking for repetition. Do not create an urge with suggestion, demand prolonged suppression or invite family members to monitor the person covertly.

Offer breaks and alternative communication. An inability to describe an urge is recorded as information unavailable or absent, not as evidence of poor cooperation. Respiratory or swallowing safety takes priority over characterizing a tic.

Performing the Assessment

Tic-cough assessment

The clinician considers suppressibility, distractibility, suggestibility, variability and any preceding urge after appropriate cough assessment. CHEST recommendations use a tic framework, supported by low-quality evidence. These features do not automatically classify every cough as an FND symptom. [1]

Record each feature with its source: the person’s account, a consensual supporter history or direct observation. Document other motor/vocal symptoms and developmental course; refer for specialist assessment when the classification is unclear.

Somatic cough syndrome criteria

This formulation requires a comprehensive medical assessment and applicable somatic-symptom criteria. It is distinct from tic cough and cannot be diagnosed merely because tests are normal. The guideline found no validated diagnostic criteria for the older cough labels. [1]

The framework includes distressing/disruptive symptoms, disproportionate symptom-related thoughts, anxiety or behaviour, and persistence, typically beyond six months. It requires a competent clinical assessment, not counting appointments or interpreting reasonable concern as excessive. [1]

Cough sound and sleep pattern

A barking or honking quality and absence during sleep have been historically emphasized. CHEST advises against using these to diagnose or exclude the syndrome. They are history observations, not reliable positive signs. [1]

Interpreting Findings

Pattern supports tic cough: Explain the features and how medical alternatives were assessed. Do not automatically relabel it functional neurological disorder.

Criteria not established: Retain uncertainty and the cough assessment plan. Neither absence of an observed cough nor unremarkable investigations settles the diagnosis.

Distress is present: Assess support needs without treating distress as proof of a cough mechanism. Anxiety or depression alone cannot establish somatic cough disorder. [1]

Brief suppressibility does not measure the effort of suppression, endurance through lessons or meetings, or the help needed afterward. Ask about those separately.

Explaining the Result

Authored example, not a patient quotation:

“The pattern around the cough matters more than its sound. We will discuss which features fit, which do not, and any other conditions that need checking. Your distress and the disruption to your life deserve care regardless of the final label.”

Avoid introducing “psychogenic” as shorthand for medically unexplained symptoms.

Evidence and Limitations

The CHEST review included 18 uncontrolled studies, 223 participants and a predominantly paediatric population (96% children or adolescents). Definitions varied and evidence quality was low. These are not validated accuracy estimates for diagnosing adult functional cough. [1]

Malaty and colleagues offer expert guidance on functional tic-like phenomena, not a cough-specific accuracy study. Its role here is a classification boundary. [2]

Media and Accessibility

Prefer a clinician explaining the history domains with a neutral diagram. No “spot the functional cough” sound quiz or forced suppression demonstration. If using an existing recording, obtain specific consent and retain the sequence and clinical context.

Caption both speech and relevant sounds. The text should convey the observation without requiring hearing or offering an audio example as a diagnostic template.

Research and Sources

The criteria summary is an educational paraphrase, not a diagnostic questionnaire. Use the full guideline and current professional assessment standards. Editorial documentation prompts do not add new criteria.

Citation	Full citation
[1]	Vertigan AE, Murad MH, Pringsheim T, et al. Somatic Cough Syndrome (Previously Referred to as Psychogenic Cough) and Tic Cough (Previously Referred to as Habit Cough) in Adults and Children: CHEST Guideline and Expert Panel Report. Chest. 2015;148(1):24-31. DOI. PMID: 25856777. FND-CIT-0129.
[2]	Malaty IA, Anderson S, Bennett SM, et al. Diagnosis and management of functional tic-like phenomena. Journal of Clinical Medicine. 2022;11(21):6470. DOI. FND-CIT-0110.

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