R29: Other symptoms and signs involving the nervous and musculoskeletal systems

R29.1: Meningismus

On the outside of the brain and spinal cord there are three thin meninges (linings). A tough meninx, the dura mater, is on the outside. Below that are two soft meninges.

Irritated meningeal membranes can cause various symptoms. Severe headaches and a stiff neck are common. You may find it difficult to tolerate bright light and loud noises. Sometimes you may also feel nauseated and feel like you have to vomit. It is also possible to have other symptoms.

The meningeal membranes can be irritated by an inflammation or by bleeding in the head, for example.