ICD-11: practical guide and comparison DSM-5

What is ICD-11 and why does it matter today

ICD-11 is the eleventh revision of the International Classification of Diseases edited by WHO, designed to standardize the description and coding of medical conditions and mental disorders globally. It is a continuously updated digital platform that extends and modernizes ICD-10, including a broad and detailed section on mental, behavioral and neurodevelopmental disorders. For official consultation you can refer to the WHO ICD-11 browser.

For those working in mental health, the ICD-11 is crucial because it integrates a shared language for diagnosis, clinical documentation, research and health reporting. Furthermore, it facilitates interoperability with information systems and national health policies. The digital nature allows for quick navigation, advanced search functions, and links to clinical notes and operational definitions.

In parallel, the DSM-5 (latest updated edition DSM-5-TR) remains the diagnostic manual published by the American Psychiatric Association, very widespread in the clinical and training fields. Understanding how ICD-11 and DSM-5 relate helps you choose the right tool for the right task and speak a common language with colleagues and institutions.

How to use ICD-11 in clinical practice

From evaluation to coding

In the clinical field, the use of the ICD-11 follows a reasoned path: we start from the evaluation of symptoms and functioning, a diagnostic hypothesis is formulated and the most appropriate code is assigned. The ICD-11 offers clinical descriptions and indications that guide the choice, with attention to duration, severity, course, risk factors and exclusion criteria. Qualifiers can be added to specify severity, course, etiological factors, or context, making the diagnosis more informative.

In clinical documentation, the ICD-11 allows you to link the diagnosis to the case history, treatment plans and follow-up, promoting traceability and communication with the team. For those coming from ICD-10, the WHO provides mapping tools and correspondence tables useful for the transition; a starting point is the WHO information portal on international classification, accessible from who.int.

Code structure and qualifiers

The ICD-11 uses expandable alphanumeric “stem” codes with extensions that allow relevant clinical aspects to be represented more precisely. This modular approach makes coding more flexible without overmultiplying categories. For example, severity can be indicated, current status versus remission or recurrence, and, when appropriate, specific contexts of onset or maintenance.

Clinical examples of use

Imagine a patient with persistent depressed mood, markedly reduced energy and anhedonia, with impaired social functioning. The ICD-11 allows you to describe the condition with a core code for depressive disorder, adding severity and course qualifiers. In another case, a picture of generalized anxiety can be completed with information on comorbidities and maintaining factors. The logic is always the same: identify the clinical construct, verify criteria and exclusions, then code in a manner consistent with the evidence collected.

ICD-11 and DSM-5: Key differences to know

Although ICD-11 and DSM-5 share many diagnostic constructs, they are born with different purposes and structures. These differences are reflected in the way categories are presented, the granularity of the criteria, and the underlying philosophy with respect to categorical and dimensional models. To learn more about the scope and updates of the DSM, you can consult the American Psychiatric Association website: psychiatry.org.

Essential points of distinction

• Primary purpose: the ICD-11 is a global standard for healthcare classification and coding, while the DSM-5 is a clinical manual with detailed operational criteria;
• Structure and flexibility: the ICD-11 uses expandable codes and qualifiers for severity and course, the DSM-5 proposes specific criteria for diagnoses and clinical specifiers;
• Some categories: the ICD-11 includes diagnoses such as Internet Gambling Disorder and recognizes Prolonged Bereavement Disorder, the DSM-5 has differences in location and, for some conditions, “in studio” sections.

When to use one or the other

In daily practice, many professionals integrate the two systems: the ICD-11 for coding and communication with healthcare systems and institutions; the DSM-5 for clinical reasoning and teaching, especially when very detailed descriptive criteria are needed. The good news is that there are solid correspondences between the two systems for most disorders, and digital tools help you quickly switch between formulations while maintaining terminological consistency.

How PsyLab speeds up search, coding and manual comparison

PsyLab is an AI assistant designed for psychologists, psychotherapists and mental health professionals. Among its functions, it allows you to consult****ICD-11 and DSM-5, search by symptoms or by diagnosis and compare the two manuals quickly. The goal is to reduce time spent browsing different resources and increase accuracy in wording and documentation.

Search by symptoms and diagnoses

In PsyLab you can type a symptom (e.g. “panic attack”, “anhedonia”, “hypervigilance”) and get the relevant references in ICD-11 and DSM-5 in a few seconds. If instead you start from the diagnosis (e.g. “depressive disorder”, “PTSD”), PsyLab shows the corresponding entries in the two manuals, with the updated vocabulary and useful notes for distinguishing overlap conditions. In this way, you quickly move from clinical observation to verification of diagnostic constructs, avoiding omissions or logical leaps.

Instant comparison ICD-11 vs DSM-5

The comparison between the two systems is one of the most critical steps in daily work: it is used to communicate with colleagues and services, to write reports aligned with standards and to prepare clear treatment plans. PsyLab allows you to quickly see key matches and differences, so you can choose the wording that best suits your context and code correctly in ICD-11 when necessary. All integrated into your clinical workflow, without bouncing between browsers and paper manuals.

Practical benefits with PsyLab

• Reduction of errors: targeted searches and comparison between systems help to avoid misaligned diagnoses or coding;
• Operational speed: going from symptoms to diagnosis and then to the code ICD-11 takes a few seconds;
• Greater communication clarity: reports and exchanges with the team are more coherent and understandable.

Frequently asked questions about ICD-11

Is ICD-11 already mandatory everywhere?

The adoption of the ICD-11 occurs in phases and varies by country and healthcare system. In many contexts the transition is underway, with temporary coexistence of ICD-10 and ICD-11. It is always advisable to check the indications of the local regulatory body and the structures in which you operate.

How to switch from ICD-10 to ICD-11 without lose information?

WHO provides transition support tools, including materials for crosswalk between ICD-10 codes and ICD-11. It is useful to plan a double coding phase for complex cases, train the team on criteria and qualifiers and take advantage of digital tools that simplify finding the most up-to-date categories.

How to coordinate ICD-11 and DSM-5 in everyday work?

An effective strategy is to use DSM-5 for the detailed clinical definition and ICD-11 for standard coding, maintaining consistency in terminology between the two. Tools like PsyLab help you go from symptoms to diagnoses and see matches more quickly and reliably.

Where can I consult the official sources?

For ICD-11 the source is the OMS browser; for the DSM-5, the reference is the American Psychiatric Association on psychiatry.org. For a general overview of WHO standards, see also the page dedicated to classifications on who.int.

Think in ICD-11, think with DSM-5 and work faster with PsyLab

Integrating ICD-11 and DSM-5 doesn’t have to be complicated: with PsyLab you can search by symptoms, access diagnoses and compare the two manuals in a few seconds, maintaining clinical rigor and operational speed. Start optimizing your daily work and try PsyLab for free on app.psylab.cloud.