G20-G26: Extrapyramidal and movement disorders

G22: Parkinsonism in diseases classified elsewhere

With Parkinson’s, there is too little of the messenger substance dopamine in certain parts of the brain. The messenger dopamine is important in controlling the body’s movements, for example. A lack of the messenger dopamine makes movements more difficult. The person can then no longer execute certain movements as quickly as normal. As a result, keeping one’s balance may also become difficult. The muscles may also stiffen up. The hands often shake.

In your case, these symptoms have been caused by another disorder.