ICD-11 Codes
for 8A00.20 - Parkinsonism due to heredodegenerative disorders

Teodor Jurukovski January 1, 1970

Fact checked by: Teodor Jurukovski

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Understanding Parkinsonism Due to Heredodegenerative Disorders

Parkinsonism is a clinical syndrome characterised by motor symptoms such as tremor, rigidity, slowness of movement (bradykinesia), and postural instability. The ICD-11 code 8A00.20 specifically denotes parkinsonism that arises from heredodegenerative disorders. These are genetic conditions where progressive degeneration of nerve cells leads to the development of parkinsonian symptoms. This diagnosis falls under the broader category of 8A00 Parkinsonism in the International Classification of Diseases, 11th Revision.

Key Symptoms of Hereditary Parkinsonism

Individuals diagnosed with Parkinsonism due to heredodegenerative disorders typically present with the cardinal signs of parkinsonism:

• Resting tremor
• Muscle rigidity
• Bradykinesia (slowness of movement)
• Postural instability (impaired balance and coordination)

Depending on the specific underlying heredodegenerative condition, other neurological signs and symptoms may also be present, reflecting the broader impact of the genetic disorder on the nervous system.

Genetic Roots of Hereditary Parkinsonism

The primary cause for conditions coded under 8A00.20 is genetic inheritance. Heredodegenerative disorders are defined by their genetic basis, involving inherited mutations that result in the progressive breakdown and loss of nerve cells within the brain. This contrasts with other causes of parkinsonism, such as those induced by toxins or vascular events.

Diagnosing Parkinsonism in Hereditary Conditions

The diagnosis of Parkinsonism due to heredodegenerative disorders is primarily clinical. It involves a thorough medical history, with a particular focus on family history to identify potential hereditary links. A comprehensive neurological examination is conducted to assess motor symptoms. While imaging techniques like MRI may be used to rule out other potential causes or identify structural changes, genetic testing can be crucial for confirming specific inherited mutations associated with the condition.

Managing Parkinsonism from Heredodegenerative Causes

Treatment for Parkinsonism due to heredodegenerative disorders focuses on managing the symptoms, as a cure for the underlying genetic condition is often not available. Medications, such as levodopa, may be prescribed to alleviate motor symptoms like bradykinesia and rigidity. Therapies including physical therapy, occupational therapy, and speech therapy play a vital role in maintaining function and improving quality of life. The management plan is tailored to the individual's specific symptoms and the progression of the underlying heredodegenerative disorder.

Documentation and Coding for 8A00.20

Accurate medical documentation and coding are essential for patient care and billing. The specific ICD-11 code for this condition is 8A00.20, officially named Parkinsonism due to heredodegenerative disorders. Common clinical synonyms include 'hereditary parkinsonism' or 'genetic parkinsonism'. This code is billable and reportable when a healthcare provider diagnoses a patient with parkinsonism stemming from a known heredodegenerative condition. It is important to distinguish this from other forms of parkinsonism, such as idiopathic Parkinson's disease or secondary parkinsonism, by documenting the underlying genetic cause.