Specific codes in ICD-10 are unique alphanumeric designations used to identify and categorize diseases, disorders, and conditions. They consist of 3-5 characters, including both letters and numbers, that provide a high level of detail and specificity.
| Language | Translation |
|---|---|
English
|
Secondary parkinsonism |
French
|
Syndrome parkinsonien secondaire |
| Level | Code | Title | |
|---|---|---|---|
| 1 | VI | Diseases of the nervous system | |
| 2 | G20-G26 | Extrapyramidal and movement disorders | |
| 3 | G21 | Secondary parkinsonism |
| Code | Title | |
|---|---|---|
| G21.0 | Malignant neuroleptic syndrome | |
| G21.1 | Other drug-induced secondary parkinsonism | |
| G21.2 | Secondary parkinsonism due to other external agents | |
| G21.3 | Postencephalitic parkinsonism | |
| G21.4 | Vascular parkinsonism | |
| G21.8 | Other secondary parkinsonism | |
| G21.9 | Secondary parkinsonism, unspecified |
| Active Ingredient | Description | |
|---|---|---|
| Tetrabenazine |
Tetrabenazine is a synthetic derivative of benzylquinolizine that causes depletion of dopamine and other monoamines in the central nervous system. The precise mechanism by which tetrabenazine exerts its effects is unknown, but is believed to be related to its effect as a reversible depletor of monoamines (such as dopamine, serotonin, norepinephrine, and histamine) from nerve terminals. Neurotransmitter depletion by a single dose of tetrabenazine is reversible and lasts only a few hours. |
|
| Tiapride |
Tiapride is an atypical neuroleptic which exhibits selectivity in in-vitro studies for D2 and D3 dopamine subtype receptors without any affinity for subtype receptors of the principal central neurotransmitters (including serotonin, noradrenaline and histamine). |
|
| Trihexyphenidyl |
Trihexyphenidyl is an anticholinergic agent. It is an antispasmodic drug which exerts a direct inhibitory effect on the parasympathetic nervous system. It diminishes salivation, increases the heart rate, dilates the pupils and reduces spasm of smooth muscle. |
