ICD-11 · 6A00

Disorders of intellectual development

Characterized by significant difficulties in learning new things, understanding information, and managing daily life independently. These difficulties emerge early in the developmental period and affect functioning at school, at work, and in relationships. The pace of acquiring knowledge is noticeably slower, and complex tasks may require additional support or simplification. The severity varies widely: from mild limitations to those requiring constant care.

Symptoms

ICD-11 diagnostic criteria

How to recognise

In the ICD-11 framework, the core symptoms taken into account when recognising Disorders of intellectual development are:

Differential diagnosis

When diagnosing Disorders of intellectual development, the following ICD-11 disorders should be considered in the differential diagnosis:

Frequently asked questions

What are the symptoms of Disorders of intellectual development?

Symptoms associated with Disorders of intellectual development (ICD-11 6A00) include: Slowed rate of learning, Difficulty understanding complex instructions and questions, Limited vocabulary and difficulty expressing thoughts, Difficulties in social relationships, Need for support in daily activities, Difficulties performing everyday tasks, Difficulties with planning and organising daily routine, Low IQ (below 70) confirmed by standardised assessment, Adaptive functioning deficits, Onset of deficits during the developmental period (before adulthood), Significant limitations in communication.

How is Disorders of intellectual development diagnosed according to ICD-11?

According to ICD-11, the diagnostic criteria for Disorders of intellectual development (6A00) include: obniżone funkcjonowanie intelektualne; deficyty zachowania adaptacyjnego; początek w okresie rozwojowym.

What disorders are in the differential diagnosis of Disorders of intellectual development?

The differential diagnosis of Disorders of intellectual development (6A00) includes: Zaburzenie ze spektrum autyzmu (6A02), Zaburzenia rozwojowe mowy i języka (6A01), Zaburzenia rozwojowe brzmienia mowy (6A01.0), Zaburzenie rozwojowe płynności mowy (6A01.1), Zaburzenie rozwojowe uczenia się (6A03), Zaburzenie rozwojowe koordynacji ruchowej (6A04), Zespół nadpobudliwości psychoruchowej z deficytem uwagi (ADHD) (6A05), Wtórny zespół neurorozwojowy (6E60).

WHO ICD-11 source

View this entry in the official WHO ICD-11 browser: 6A00 – WHO ICD-11

Open in interactive browser →
Source: WHO ICD-11 (chapter 6 – Mental, behavioral and neurodevelopmental disorders). Used under CC BY-ND 3.0 IGO. ICD Diagnostica is not affiliated with or endorsed by WHO. Informational use only – does not replace clinical judgment.