ICD Code G31.83

ICD code G31.83 is neurocognitive disorder with Lewy bodies, a progressive brain disorder characterized by cognitive decline, visual hallucinations, and movement symptoms similar to Parkinson’s disease.

1. Progressive cognitive decline interfering with daily functioning

2. Fluctuating cognition with pronounced variations in attention and alertness

3. Recurrent visual hallucinations that are well-formed and detailed

4. Spontaneous features of parkinsonism (e.g., bradykinesia, rigidity, resting tremor)

5. REM sleep behavior disorder

6. Sensitivity to antipsychotic agents

7. No evidence of another medical, neurological, or psychiatric condition better explaining the symptoms

Relevant CPT codes that may be used to treat ICD code G31.83 include:

- 90791 (Psychiatric diagnostic evaluation)

- 96132 (Neuropsychological testing evaluation services, first hour)

- 96133 (Neuropsychological testing evaluation services, each additional hour)

- 96136 (Psychological or neuropsychological test administration and scoring, first 30 minutes)

- 96137 (Psychological or neuropsychological test administration and scoring, each additional 30 minutes)

- 99202–99215 (Evaluation and management services, new or established patient)

- 99354–99357 (Prolonged service in the office or other outpatient setting)

- 99483 (Assessment and care planning for patients with cognitive impairment)

- 97110 (Therapeutic exercises)

- 97532 (Development of cognitive skills)

These CPT codes are commonly associated with the management and treatment of G31.83.

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