Which of the following blocks of ICD-10 is for schizophrenia, schizotypal and delusional disorders?

Appeared in: DSSSB 12 August 2024

Explanation

The ICD-10 classification system categorizes mental and behavioral disorders in Chapter V, using codes from F00 to F99.
The specific block F20-F29 is designated for 'Schizophrenia, schizotypal and delusional disorders,' which includes conditions characterized by fundamental distortions of thinking and perception.
This grouping helps in standardized diagnosis and management of psychotic disorders.

Option A: This block is incorrect because it pertains to disorders that result from the use of psychoactive substances like alcohol, opioids, and cannabinoids.
Option B: This block is incorrect as it covers mood disorders, which are primarily characterized by disturbances in a person's emotional state.
Option C: This block is incorrect because it deals with disorders where anxiety is a primary feature, or those related to significant stress and physical symptoms without a medical cause.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain ICD-10 Classification of Mental and Behavioral Disorders as background academic context rather than a clinical decision trigger.
Accurate ICD-10 coding is essential for billing, insurance reimbursement, and tracking public health trends. A nurse's precise documentation of symptoms helps in assigning the correct code.
Familiarity with these codes allows nurses to understand a patient's documented history quickly and contributes to effective interdisciplinary communication.
What if a patient has symptoms of both schizophrenia and severe depression? The clinician would need to differentiate between a primary psychotic disorder (F20-F29) and a mood disorder with psychotic features (F30-F39), which has significant implications for treatment, particularly the choice between antipsychotics and mood stabilizers.

How to Approach the Question

First, identify the key terms in the question: 'ICD-10', 'schizophrenia', 'schizotypal', and 'delusional disorders'.
Recognize that this is a factual recall question requiring knowledge of a standardized classification system used in healthcare.
Mentally access your knowledge of the major blocks within Chapter F (Mental and Behavioral Disorders) of the ICD-10.
Associate schizophrenia and related psychotic conditions with the F20-F29 block.
Systematically eliminate the other options by recalling their general categories: F10s for substance use, F30s for mood disorders, and F40s for anxiety/stress disorders.

Concept Tested & Keywords

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Practise the full DSSSB 12 August 2024

Attempt every question from this paper in a timed mock, then review the full solution for each one.