R46.2 is the ICD-10 code for Strange and inexplicable behaviour. It is a four-character subcategory of R46 (Symptoms and signs involving appearance and behaviour), the most specific level in the WHO edition. It belongs to the block R40–R46 (Symptoms and signs involving cognition, perception, emotional state and behaviour) in Chapter XVIII, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
- Code type
- Subcategory (4 characters)
- Chapter
- XVIII · R00–R99
- Classification
- WHO ICD-10, 2019 version
R46.2 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
R46.2Merkelig eller uforklarlig opptreden
DR462Mærkværdig eller uforklarlig opførsel
R46.2Outo ja selittämätön käyttäytyminen
R46.2Seltsames und unerklärliches Verhalten
R46.2Comportement étrange et inexplicable
R46.2vreemd en onverklaarbaar gedrag
R46.2Strange and inexplicable behavior
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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