Drug induced movement disorder, unspecified

This code signifies an abnormal involuntary movement disorder that has developed as a direct consequence of medication use. It encompasses a range of motor symptoms such as dystonia, dyskinesia, akathisia, or parkinsonism, where the specific type of movement disorder is not documented. The condition is considered drug-induced when there is a clear temporal relationship between drug exposure and symptom onset.

Use this code when a patient presents with a movement disorder clearly attributed to a prescribed or illicit drug, and the medical record does not specify the exact type of drug-induced movement disorder (e.g., drug-induced parkinsonism vs. drug-induced dystonia). Documentation should explicitly link the movement disorder to a drug and indicate that the specific type is unknown or unclassified.

• Always attempt to code to a more specific drug-induced movement disorder if documented (e.g., G24.0- for drug-induced dystonia).
• Remember to also code the adverse effect of the drug (T36-T50 with a 5th or 6th character of 5) and the drug itself (T36-T50 with a 7th character of A, D, or S).
• This code should not be used for movement disorders that are merely exacerbated by drugs but have an underlying primary cause.