Psychological and behavioural factors associated with disorders or diseases classified elsewhere

Coding guidance (WHO 2019)

This category should be used to record the presence of psychological or behavioural influences thought to have played a major part in the aetiology of physical disorders which can be classified to other chapters. Any resulting mental disturbances are usually mild, and often prolonged (such as worry, emotional conflict, apprehension) and do not of themselves justify the use of any of the categories in this chapter. Incl.: Psychological factors affecting physical conditions Examples of the use of this category are: asthma F54 and J45.- dermatitis F54 and L23-L25 gastric ulcer F54 and K25.- irritable bowel syndrome F54 and K58.- ulcerative colitis F54 and K51.- urticaria F54 and L50.- Use additional code, if desired, to identify the associated physical disorder. Excl.: tension-type headache (G44.2)