R40-R46: Symptoms and signs involving cognition, perception, emotional state and behaviour
The range of conditions coded from R40-R46 in the ICD-10 WHO 2016 classification, titled "Symptoms and signs involving cognition, perception, emotional state and behaviour," refers to a group of conditions that impact cognitive function, perception, emotional well-being, and behavior. These conditions can present as awareness disturbances, sleeping abnormalities, hallucinations, mood changes, and personality shifts. Common triggers can include stress, trauma, existing mental or physical health conditions, or certain medications. The progression of these conditions can depend largely on the underlying cause and may become chronic if left untreated. These conditions can disrupt everyday activities and interactions as they tend to impair an individual's ability to think, perceive their surroundings, regulate their emotions, or control their behaviors in a manner often regarded as standard.
R40: Somnolence, stupor and coma
R41: Other symptoms and signs involving cognitive functions and awareness
R42: Dizziness and giddiness
R43: Disturbances of smell and taste
R44: Other symptoms and signs involving general sensations and perceptions
R45: Symptoms and signs involving emotional state
R46: Symptoms and signs involving appearance and behaviour
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.