6A25 - Symptomatic Manifestations of Primary Psychotic Disorders: Complete Coding Guide

1. Introduction

The symptomatic manifestations of primary psychotic disorders represent a fundamental aspect in the clinical characterization of patients already diagnosed with schizophrenia or other primary psychotic disorders. The ICD-11 code 6A25 was developed specifically to allow healthcare professionals to accurately document the current clinical presentation of these patients, offering a detailed view of the symptomatic state at the time of evaluation.

The clinical importance of this code lies in its ability to capture the dynamic and fluctuating nature of psychotic disorders. Patients with schizophrenia or related disorders do not present static symptoms; their manifestations vary over time, responding to treatment, environmental stress, and various biological factors. Appropriate coding of these manifestations allows better monitoring of clinical evolution, more precise therapeutic planning, and effective communication among different professionals involved in care.

From a public health perspective, precise coding of symptomatic manifestations contributes to more robust epidemiological studies, allowing better understanding of clinical presentation patterns in different populations. This facilitates adequate resource allocation, development of evidence-based treatment protocols, and evaluation of the effectiveness of therapeutic interventions.

Correct coding is critical because code 6A25 should never be used in isolation as a primary diagnosis, but always as a supplementary or additional code. This unique characteristic requires that professionals understand not only when to use this code, but also how to properly integrate it into the patient's complete clinical record.

2. Correct ICD-11 Code

Code: 6A25

Description: Symptomatic manifestations of primary psychotic disorders

Parent category: Schizophrenia or other primary psychotic disorders

Official definition: These categories may be used to characterize the current clinical presentation in individuals with a diagnosis of schizophrenia or other primary psychotic disorder, and should not be used in individuals without this diagnosis. Various categories may be used simultaneously to capture the complexity of the clinical presentation.

It is fundamental to understand that symptoms attributable to the direct pathophysiological consequences of a health condition or injury not classified among mental, behavioral, or neurodevelopmental disorders (such as a brain tumor or traumatic brain injury), or to the direct effects of a substance or medication on the central nervous system, including withdrawal effects, should not be considered as examples of the respective types of symptoms for purposes of this coding.

Coding notes: These categories should never be used in primary coding. The codes are provided exclusively for use as supplementary or additional codes when it is desired to indicate the specific presence of certain symptoms in primary psychotic disorders. This feature distinguishes 6A25 from other diagnostic codes, positioning it as an essential complementary descriptive tool for comprehensive clinical documentation.

3. When to Use This Code

Code 6A25 should be used in specific clinical scenarios where there is a need to characterize in detail the current symptomatic manifestations of a patient with an established diagnosis of primary psychotic disorder:

Scenario 1: Monitoring Therapeutic Response A patient with a diagnosis of schizophrenia undergoing outpatient treatment for six months presents for follow-up consultation. The physician needs to document that, despite significant improvement in persecutory delusions, prominent negative symptoms persist such as avolition and affective blunting. Code 6A25 with appropriate subcategory allows specification of these current manifestations, complementing the primary diagnosis of schizophrenia.

Scenario 2: Evaluation During Psychiatric Hospitalization During psychiatric hospitalization of a patient with schizoaffective disorder, the multidisciplinary team needs to record the daily evolution of symptomatic manifestations. At the time of admission, intense positive symptoms predominate; after one week of treatment, reduction of these symptoms is observed with emergence of depressive symptoms. The use of 6A25 allows documentation of these changes in clinical presentation throughout hospitalization.

Scenario 3: Documentation for Disability Evaluation A patient with a diagnosis of schizophrenia requires evaluation for disability benefits. The documentation needs not only to confirm the diagnosis but to detail the current symptomatic manifestations that impact their functionality. Code 6A25 complements the primary diagnosis, specifying symptoms such as thought disorganization and negative symptoms that limit their work capacity.

Scenario 4: Transition Between Levels of Care When transferring a patient from intensive care to outpatient treatment, it is essential to clearly communicate which symptomatic manifestations are present at the time of transition. Code 6A25 facilitates this communication, allowing the receiving team to immediately understand the patient's current clinical status.

Scenario 5: Research and Clinical Studies In research protocols that evaluate different symptomatic profiles in psychotic disorders, code 6A25 allows categorization of participants according to their predominant clinical manifestations, facilitating subgroup analyses and identification of treatment response patterns.

Scenario 6: Reevaluation After Stabilization Period A patient who presented with first-episode psychosis two years ago, now stabilized on treatment, returns for reevaluation. While maintaining the diagnosis of schizophrenia, currently presents only mild residual symptoms. Code 6A25 allows documentation of this current symptomatic presentation significantly different from the initial presentation.

4. When NOT to Use This Code

It is essential to understand the situations where code 6A25 should not be applied to avoid coding errors:

Absence of Primary Psychotic Disorder Diagnosis: Code 6A25 should never be used in patients without an established diagnosis of schizophrenia or another primary psychotic disorder. Even if a patient presents with psychotic symptoms, if these result from other conditions (bipolar disorder with psychotic features, substance-induced psychosis, delirium), 6A25 is not appropriate.

Psychotic Symptoms Secondary to General Medical Conditions: When psychotic symptoms result from brain tumor, traumatic brain injury, encephalitis, dementia, or other neurological conditions, they should not be coded with 6A25. These symptoms require coding of the underlying medical condition with appropriate specifiers for secondary psychotic manifestations.

Symptoms Induced by Substances or Medications: Psychotic manifestations caused by intoxication, withdrawal, or adverse effects of medications should not receive code 6A25. Even in patients with a previous diagnosis of schizophrenia, if current symptoms are clearly attributable to substance use, other codes are more appropriate.

Use as Primary Diagnostic Code: 6A25 should never appear as the principal or sole diagnosis. Its isolated use represents a serious coding error, as this code exists exclusively as complementary to the primary diagnosis of psychotic disorder.

Symptoms in Initial Diagnostic Evaluation: During diagnostic investigation of psychotic symptoms, before definitive establishment of the diagnosis of primary psychotic disorder, code 6A25 should not be used. Provisional codes or nonspecific symptom codes are more appropriate at this stage.

5. Step-by-Step Coding Process

Step 1: Assess Diagnostic Criteria

Before considering the use of code 6A25, confirm that the patient has an established diagnosis of schizophrenia or another primary psychotic disorder. This confirmation requires:

Review of clinical history: Verify previous documentation that establishes the primary diagnosis. Identify when and by whom the diagnosis was made, the criteria used, and the clinical course since then.

Assessment of current presentation: Use standardized instruments such as the Positive and Negative Syndrome Scale (PANSS), the Brief Psychiatric Rating Scale (BPRS), or the Global Assessment of Functioning Scale (GAF) to objectively document the symptomatic manifestations present.

Structured clinical interview: Conduct systematic assessment of symptomatic domains: positive symptoms (delusions, hallucinations, disorganized thinking), negative symptoms (blunted affect, alogia, avolition), cognitive symptoms, and affective symptoms.

Exclusion of secondary causes: Actively rule out general medical conditions, substance use, or medications that may explain current symptoms through physical examination, laboratory tests, and neuroimaging when indicated.

Step 2: Verify Specifiers

Code 6A25 has subcategories that allow specification of the type of predominant symptomatic manifestation:

Identify predominant symptoms: Determine which symptom categories are present and their relative intensity. Remember that multiple subcategories may be used simultaneously.

Assess severity: Document symptom intensity using appropriate scales. Severity influences therapeutic decisions and prognosis.

Consider duration: Record how long current manifestations have been present, differentiating acute symptoms from chronic or residual symptoms.

Document functional impact: Assess how symptomatic manifestations affect social, occupational, and daily living activities functioning.

Step 3: Differentiate from Other Codes

6A20: Schizophrenia This is the primary diagnostic code for schizophrenia. Key difference: 6A20 identifies the disorder itself, while 6A25 describes current symptomatic manifestations. Use 6A20 as the principal code and 6A25 as complementary to specify clinical presentation.

6A21: Schizoaffective Disorder Diagnostic code for a disorder that combines psychotic symptoms and mood disorders. Key difference: 6A21 is the primary diagnosis when specific criteria for affective and psychotic episodes are met. 6A25 may complement it to detail current symptomatic manifestations.

6A22: Schizotypal Disorder Diagnosis characterized by persistent abnormalities in thinking, perception, and behavior, without frankly delusional or hallucinatory psychotic symptoms. Key difference: 6A22 represents a disorder distinct from schizophrenia, with specific clinical characteristics that do not include typical psychotic episodes.

Step 4: Required Documentation

Checklist of mandatory information:

Established primary diagnosis of psychotic disorder (code 6A20, 6A21, or other appropriate)
Date of current assessment
Detailed description of symptomatic manifestations present
Assessment instruments used and their results
Documented exclusion of secondary causes
Specific 6A25 subcategories applicable
Severity of symptoms
Functional impact of current manifestations
Response to current treatment
Therapeutic plan based on identified manifestations

Appropriate record: Documentation should clearly indicate that code 6A25 is being used as complementary, specifying which primary diagnostic code is being complemented. Avoid ambiguities that may suggest that 6A25 represents the principal diagnosis.

6. Complete Practical Example

Clinical Case:

Marina, 32 years old, has an established diagnosis of schizophrenia for five years following her first psychotic episode at age 27. She initiated treatment with a second-generation antipsychotic, presenting with good initial response with complete remission of positive symptoms after six months. She remained stable for three years, working part-time and living independently.

Four months ago, following a significant psychosocial stressor (job loss), she presented with symptom exacerbation. Family members report that Marina became progressively isolated, with marked reduction in spontaneous communication, neglect of self-care, and loss of interest in previously pleasurable activities. She does not express evident delusions or hallucinations, but demonstrates marked affective blunting and poverty of speech.

At the current consultation, Marina presents with poor personal hygiene, poor eye contact, and monosyllabic responses. She denies auditory or visual hallucinations. She denies persecutory or grandiose delusional ideation. When questioned about her plans, she demonstrates significant avolition, stating that "she has no desire to do anything" and "sees no meaning in things." Mental status examination reveals marked affective blunting, prominent alogia and avolition, without evident positive symptoms.

Recent laboratory tests (complete blood count, thyroid function, electrolytes) within normal limits. There is no use of psychoactive substances. The antipsychotic medication is being taken regularly as verified by the family.

Step-by-Step Coding:

Criteria Analysis:

Established diagnosis of schizophrenia present: Yes, confirmed five years ago with adequate documentation of the first psychotic episode and subsequent clinical course.
Current symptomatic manifestations present: Yes, prominent negative symptoms (affective blunting, alogia, avolition) documented through clinical interview and observation.
Exclusion of secondary causes: Performed through normal laboratory tests, absence of substance use, and absence of general medical conditions that explain the symptoms.
Need to characterize current clinical presentation: Yes, to document change in symptom pattern (from remission to predominance of negative symptoms) and guide therapeutic adjustments.

Code Selected:

Primary code: 6A20 (Schizophrenia)
Complementary code: 6A25 with appropriate subcategory for predominant negative symptoms

Complete Justification:

Code 6A20 remains as the primary diagnosis, reflecting the underlying disorder. Code 6A25 is added as complementary to specifically characterize the current symptomatic presentation, dominated by negative symptoms. This dual coding allows:

Maintaining diagnostic continuity (schizophrenia)
Documenting the change in clinical presentation
Guiding adjustments in the therapeutic plan (consider specific strategies for negative symptoms)
Facilitating communication with other professionals about the current clinical status
Providing a basis for evaluating response to future interventions

Applicable Complementary Codes:

In addition to the main codes, additional codes may be considered for comorbidities or complications, if present (for example, codes related to functional impairment or need for social support).

7. Related Codes and Differentiation

Within the Same Category:

6A20: Schizophrenia

When to use: As the primary diagnosis for patients who meet complete diagnostic criteria for schizophrenia, including presence of characteristic symptoms for a significant period, exclusion of other causes, and functional impairment.

When to use vs. 6A25: 6A20 is always the primary code; 6A25 is added when there is a need to specify current symptomatic manifestations. They are not mutually exclusive codes, but complementary.

Main difference: 6A20 identifies the diagnostic disorder; 6A25 describes the current symptomatic state within that disorder.

6A21: Schizoaffective Disorder

When to use: As the primary diagnosis when the patient presents with prominent affective episodes (manic or depressive) concurrently with psychotic symptoms characteristic of schizophrenia, with specific temporal criteria met.

When to use vs. 6A25: Use 6A21 as the primary code when the diagnosis is schizoaffective disorder; add 6A25 to characterize current symptomatic manifestations, whether they are predominantly psychotic, affective, or mixed.

Main difference: 6A21 represents a distinct diagnosis that combines features of psychotic and affective disorders; 6A25 describes symptomatic manifestations regardless of the specific primary diagnosis.

6A22: Schizotypal Disorder

When to use: As the primary diagnosis for a persistent pattern of social and interpersonal deficits, cognitive and perceptual distortions, and eccentric behavior, without frank psychotic episodes.

When to use vs. 6A25: 6A22 is a distinct diagnosis that does not require the use of 6A25, as the latter is specific to primary psychotic disorders with characteristic psychotic episodes.

Main difference: 6A22 represents a personality disorder with schizotypal features, not a primary psychotic disorder; therefore, it is not appropriate to combine with 6A25.

Differential Diagnoses:

Bipolar Disorder with Psychotic Features: May present with psychotic symptoms during mood episodes, but the primary diagnosis belongs to the category of mood disorders, not primary psychotic disorders. It is distinguished by the prominence and temporality of affective episodes.

Persistent Delusional Disorder: Characterized by persistent delusions without other prominent features of schizophrenia. It is differentiated by the absence of prominent hallucinations, disorganized thinking, or marked negative symptoms.

Substance-Induced Psychotic Disorder: Psychotic symptoms directly attributable to intoxication or withdrawal from substances. It is distinguished by a clear temporal relationship with substance use and typical resolution following cessation of use.

Brief Psychotic Disorder: Psychotic episode lasting less than one month, with complete return to premorbid level of functioning. It is differentiated by limited duration and complete resolution.

8. Differences with ICD-10

ICD-10 does not have a direct equivalent to code 6A25. In the previous version, the characterization of symptomatic manifestations in psychotic disorders was performed through:

Related ICD-10 code: F20 (Schizophrenia) with subtypes based on clinical presentation (F20.0 paranoid, F20.1 hebephrenic, F20.2 catatonic, etc.) and course specifiers.

Main changes in ICD-11:

ICD-11 introduces a more flexible dimensional approach to characterize symptomatic manifestations, in contrast to the categorical subtype system of ICD-10. The changes include:

Elimination of rigid subtypes: ICD-10 categorized schizophrenia into specific subtypes (paranoid, hebephrenic, catatonic). ICD-11 recognizes that patients frequently present with mixed symptoms and that presentation may change over time.

Complementary descriptive approach: Code 6A25 allows documentation of current symptomatic manifestations without forcing the patient into rigid subtype categories, offering greater flexibility and descriptive precision.

Multiple simultaneous categories: Unlike ICD-10, where a single subtype was generally assigned, ICD-11 allows the use of multiple subcategories of 6A25 simultaneously, better reflecting clinical complexity.

Practical impact of these changes:

The transition to the ICD-11 system offers significant advantages for clinical practice. Professionals can document with greater precision the nuances of individual clinical presentation, facilitating more detailed communication between teams and better monitoring of symptomatic evolution over time. The dimensional approach also aligns better with contemporary scientific evidence regarding the heterogeneous nature of psychotic disorders.

For health information systems, the change requires adaptation of software and professional training to understand that code 6A25 should always be used as complementary, never in isolation. This represents an important conceptual change in relation to ICD-10 coding practice.

9. Frequently Asked Questions

How is the diagnosis of symptomatic manifestations that justify the use of code 6A25 made?

The diagnosis of symptomatic manifestations is based on comprehensive clinical evaluation that includes detailed psychiatric interview, mental status examination, review of clinical history, and frequently the use of standardized assessment instruments. Scales such as PANSS, BPRS, and other validated tools assist in objective quantification of symptoms. The evaluation should be performed by a qualified mental health professional, preferably a psychiatrist, although other trained professionals can contribute to symptomatic characterization. It is essential to exclude secondary causes through physical examination, laboratory tests, and neuroimaging when indicated. Documentation must be sufficiently detailed to justify the choice of specific subcategories of 6A25.

Is treatment of symptomatic manifestations available in public health systems?

Yes, treatment of primary psychotic disorders and their symptomatic manifestations is generally available in public health systems in most countries. Treatment typically includes antipsychotic medication, psychosocial interventions, psychotherapy, and rehabilitation support. The specific availability of different therapeutic modalities varies between regions and health systems. First and second-generation antipsychotic medications are commonly included in essential medicine lists. Outpatient services, day hospitals, and psychiatric hospitalizations when necessary are typical components of the care network. Access may vary depending on local mental health infrastructure, but there is growing recognition of the importance of ensuring adequate treatment for psychotic disorders.

How long does treatment of symptomatic manifestations last?

The duration of treatment varies significantly depending on multiple individual factors. Schizophrenia and other primary psychotic disorders are typically chronic conditions that require long-term treatment, often throughout life. Specific symptomatic manifestations may respond to treatment over different periods: acute positive symptoms often improve within weeks to months with appropriate medication, while negative and cognitive symptoms may be more resistant and require prolonged therapeutic approaches. Maintenance treatment to prevent relapse is generally recommended for an extended period after symptomatic stabilization. Decisions about treatment duration should be individualized, considering history of relapses, severity of manifestations, therapeutic response, and patient preferences.

Can this code be used in medical certificates?

Code 6A25 can be included in medical documentation, including certificates, when appropriate to characterize the current clinical presentation. However, since this code is always complementary, it should appear together with the primary diagnosis of psychotic disorder. In contexts where privacy is a priority, it may be preferable to use only the primary diagnostic code (such as 6A20 for schizophrenia) without detailing specific symptomatic manifestations. For documentation intended for disability assessments, benefits, or accommodation needs, the inclusion of 6A25 with appropriate subcategories can provide valuable information about specific functional limitations. Professionals should consider the purpose of the certificate and the patient's privacy needs when deciding the level of diagnostic detail to include.

What are the specific subcategories of code 6A25?

Code 6A25 has six subcategories that allow specification of different types of symptomatic manifestations. Although the specific codes of the subcategories should be consulted in the official ICD-11 documentation, they typically include categories for positive symptoms (such as delusions and hallucinations), negative symptoms (such as affective blunting and avolition), depressive symptoms, manic symptoms, psychomotor symptoms, and cognitive symptoms. Multiple subcategories can be used simultaneously when the patient presents manifestations in different symptomatic domains. The choice of subcategories should be based on careful clinical evaluation of the patient's current presentation.

Is it possible that symptomatic manifestations change over time?

Yes, it is not only possible but expected that symptomatic manifestations in primary psychotic disorders vary over time. Clinical presentation may change in response to treatment, with positive symptoms often improving more rapidly than negative symptoms. Environmental stressors, treatment adherence, substance use, and biological factors can influence which manifestations are predominant at different times. This dynamic nature justifies periodic reassessments and updating of 6A25 coding to reflect the current clinical presentation. Longitudinal monitoring of changes in symptomatic manifestations provides valuable information about treatment effectiveness and prognosis.

How to differentiate symptoms that should be coded with 6A25 from symptoms caused by other conditions?

Differentiation requires careful clinical evaluation. Symptoms attributable to general medical conditions (such as brain tumor, encephalitis, dementia) should not be coded with 6A25, but rather with appropriate codes for the underlying medical condition. Symptoms clearly related to substance intoxication or withdrawal also require different coding. The key is to establish whether the symptoms are part of the primary psychotic disorder or whether there is clear evidence of another etiology. This frequently requires investigation through complementary tests, temporal evaluation of the relationship between symptoms and potential secondary causes, and consideration of the overall pattern of clinical presentation. In cases of doubt, consultation with specialists and additional investigation may be necessary.

Can patients with first-episode psychosis receive code 6A25?

Yes, provided that the diagnosis of primary psychotic disorder has been established. Even in first episode, once diagnostic criteria for schizophrenia or another primary psychotic disorder are met, code 6A25 can be used as complementary to characterize the symptomatic manifestations present. This is particularly useful in first episode to document the initial presentation, which may have prognostic and therapeutic implications. However, during the initial diagnostic investigation phase, before the definitive diagnosis is established, the use of 6A25 is not appropriate.

Conclusion:

Code 6A25 of ICD-11 represents a valuable tool for precise characterization of symptomatic manifestations in primary psychotic disorders. Its appropriate use as a complementary code allows detailed clinical documentation, effective communication among professionals, and longitudinal monitoring of symptomatic evolution. Understanding when and how to use this code, always in conjunction with the appropriate primary diagnosis, is essential for quality clinical practice and adequate documentation in the context of mental health.

External References

This article was prepared based on reliable scientific sources:

References verified on 2026-02-03

Symptomatic Manifestations of Primary Psychotic Disorders

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