G21 ICD 10 Code is a non-billable and non-specific code and should not be used to indicate a diagnosis for reimbursement purposes. There are other codes below it with greater level of diagnosis detail. The 2023 edition of the American ICD-10-CM code became effective on October 1, 2022.
Type 1 excludes for G21 ICD 10 code
- dementia with Parkinsonism (G31.83)
- Huntington's disease (G10)
- Shy-Drager syndrome (G90.3)
- syphilitic Parkinsonism (A52.19)
Codes
- G21.0 Malignant neuroleptic syndrome
- G21.1 Other drug-induced secondary parkinsonism
- G21.11 Neuroleptic induced parkinsonism
- G21.19 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
Possible back-references that may be applicable or related to G21 ICD10 Code:
Present On Admission (POA Exempt)
G21 ICD 10 code is considered exempt from POA reporting
Clinical information about G21 ICD 10 code
Parkinson's disease (PD) is a type of movement disorder. It happens when nerve cells in the brain don't produce enough of a brain chemical called dopamine. Sometimes it is genetic, but most cases do not seem to run in families. Exposure to chemicals in the environment might play a role.
Symptoms begin gradually, often on one side of the body. Later they affect both sides. They include:
- Trembling of hands, arms, legs, jaw and face
- Stiffness of the arms, legs and trunk
- Slowness of movement
- Poor balance and coordination
As symptoms get worse, people with the disease may have trouble walking, talking, or doing simple tasks. They may also have problems such as depression, sleep problems, or trouble chewing, swallowing, or speaking.
There is no specific test for PD, so it can be difficult to diagnose. Doctors use a medical history and a neurological examination to diagnose it.
PD usually begins around age 60, but it can start earlier. It is more common in men than in women. There is no cure for PD. A variety of medicines sometimes help symptoms dramatically. Surgery and deep brain stimulation (DBS) can help severe cases. With DBS, electrodes are surgically implanted in the brain. They send electrical pulses to stimulate the parts of the brain that control movement.
NIH: National Institute of Neurological Disorders and Stroke
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