Parkinson's Disease C&P Exam Prep

Tremor Assessment (Resting, Postural, Action)

What it measures: Presence, type, distribution, and functional impact of tremor in all four extremities and potentially the head/jaw

What to expect: Examiner will observe your hands and limbs at rest, during posture holding, and during voluntary movement. They will note which limbs are affected, severity, and whether tremor interferes with writing, eating, or self-care.

Pain considerations: Tremor itself may cause secondary musculoskeletal fatigue and discomfort; describe any associated muscle soreness or exhaustion from sustained involuntary movements.

Rigidity Examination (Cogwheel/Lead-Pipe Tone)

What it measures: Resistance to passive movement in joints of all four extremities and neck, indicating basal ganglia dysfunction

What to expect: Examiner will passively move your arms, wrists, and legs and feel for resistance or ratcheting (cogwheel) quality. They will document which extremities are affected and severity.

Pain considerations: Rigidity-related dystonic cramping (especially foot dystonia) can be intensely painful; accurately describe pain on a 0-10 scale and the frequency, duration, and functional impact of such episodes.

Bradykinesia Assessment (Finger Tapping, Hand Movements, Heel Stomping)

What it measures: Speed and amplitude of repetitive voluntary movements, reflecting dopaminergic motor pathway impairment

What to expect: Examiner will ask you to rapidly tap your thumb and index finger together, open and close your fist, and perform repetitive heel tapping. They will observe for slowing (bradykinesia) and decremental amplitude (fatiguing).

Pain considerations: Bradykinesia increases the time required for physical activities and causes disproportionate fatigue; describe exhaustion after simple tasks such as bathing or cooking.

Gait and Postural Stability Testing (Pull Test / Romberg)

What it measures: Shuffling gait pattern, step length, arm swing asymmetry, turning difficulty, festination, freezing of gait, and postural reflexes

What to expect: Examiner will observe you walk, turn, and stand still. They may perform the pull test (gently pulling your shoulders backward) to assess postural reflexes. They will note falls risk.

Pain considerations: Falls resulting from postural instability may cause secondary injuries; describe any fractures, bruises, or pain from falls.

Speech and Swallowing Assessment

What it measures: Voice volume, clarity, fluency, and ability to safely swallow food and liquids

What to expect: Examiner will listen to your voice quality, volume, and rate of speech. They will ask about choking, coughing with meals, and any dietary modifications required.

Pain considerations: Drooling and swallowing difficulties can cause throat discomfort, chest pain from aspiration, and severe psychological distress; describe all associated symptoms.

Cognitive and Psychiatric Evaluation

What it measures: Memory, executive function, attention, processing speed, and presence of mood disorders (depression, anxiety) or psychosis (hallucinations, delusions)

What to expect: Examiner may administer brief cognitive screening (e.g., MMSE or MoCA), ask about memory complaints, confusion, and any psychiatric symptoms including depression and medication-induced hallucinations.

Pain considerations: Depression and anxiety in PD are neurobiological, not just situational; emphasize that these are symptoms of the disease itself, not simply an emotional reaction to diagnosis.

Autonomic Function Assessment

What it measures: Bladder control, bowel function, orthostatic hypotension, sexual dysfunction, and thermoregulatory sweating abnormalities

What to expect: Examiner will ask about urinary urgency, frequency, incontinence, constipation, dizziness upon standing, and use of any continence aids.

Pain considerations: Constipation in PD can cause severe abdominal cramping and bloating; describe pain and duration of constipation episodes.

30%

Minimum rating for Parkinson's Disease (Paralysis Agitans) under DC 8004. The 30% floor applies regardless of symptom severity and reflects that even mild Parkinson's disease causes meaningful disability. Veterans with mild symptoms that do not yet meet criteria for higher ratings under associated residual disability codes still receive this minimum. Rating may be significantly higher when residuals are separately evaluated under hyphenated codes per M21-1 V.iii.12.C.3.d.

From 38 CFR: 38 CFR 4.124a DC 8004: 'Paralysis agitans: Minimum rating 30.' This 30% floor reflects the inherent disabling nature of a progressive neurological condition. Combined ratings from separately rated residuals (tremor, rigidity, gait disturbance, speech, swallowing, depression) will typically exceed this floor significantly.

60%

Moderate Parkinson's Disease with significant functional impairment across multiple domains. Achieved through the primary DC 8004 rating combined with separately rated residuals under hyphenated codes. Typically reflects moderate tremor, moderate rigidity, noticeable bradykinesia, some gait disturbance, and beginning impact on occupational or social functioning. Speech or swallowing difficulties may be emerging.

From 38 CFR: Per M21-1 V.iii.12.C.3.d example: 8004-8520 (right lower extremity tremor/rigidity/bradykinesia) + 8520 (left lower extremity) + 8515 (right upper extremity) + 9434 (major depressive disorder) + 7204 (dysphagia) - combined rating under 38 CFR 4.25 would typically reach 60% or higher.

100%

Severe Parkinson's Disease with profound functional impairment, typically requiring combined ratings across multiple residual conditions that approach or reach 100% when combined under 38 CFR 4.25. Often associated with need for aid and attendance (SMC). Reflects severe motor disability, significant cognitive impairment or dementia, major psychiatric comorbidities, severe autonomic dysfunction, and loss of independence in ADLs.

From 38 CFR: Per M21-1 V.iii.12.C.3.e: 'Give careful consideration to SMC in cases of Parkinson's disease and/or Parkinsonism, particularly losses of use and aid and attendance (A&A).' At this level, combined ratings under 38 CFR 4.25 from all separately rated residuals (8004-8520, 8520, 8515, 9434, 7204, 9326, bladder dysfunction, autonomic) typically result in ratings approaching or reaching 100%, with additional SMC entitlement.

Tremor

How to describe it: Describe which limbs are affected (right arm, left leg, both hands), the type of tremor (shaking at rest vs. when trying to hold a position vs. during movement), and what specific tasks it prevents or makes dangerous. Be specific: 'My right hand tremors so severely at rest that I spill liquids when holding a cup, and my handwriting is completely illegible.'

Example: On my worst days, my right hand shakes so violently at rest that I cannot hold a fork without dropping food. I cannot button my shirt, sign my name, or type. My leg tremors while sitting make it difficult to drive safely, which I have stopped attempting. The tremor continues even when I try to rest, preventing me from sleeping through the night.

Examiner listens for: Specific functional tasks impacted, bilateral vs. unilateral distribution, dominant hand involvement, and whether tremor fluctuates with medication timing (worse during off periods).

Avoid: Saying 'I shake a little' without describing functional impact. If tremor prevents writing, driving, eating independently, or self-care, you must say so explicitly. Examiners cannot assume functional loss from physical findings alone - you must verbalize it.

Rigidity and Stiffness

How to describe it: Describe morning stiffness duration (how long after waking before you can move comfortably), stiffness during off-medication periods, and how rigidity limits specific movements such as turning in bed, getting up from a chair, reaching overhead, or walking.

Example: On my worst days, I wake up so rigid I cannot turn over in bed without my wife's help. It takes me over an hour after waking before I can walk safely. My arms do not swing when I walk, and I have extreme difficulty reaching behind my back to dress. Dystonic foot cramping wakes me from sleep with severe pain that lasts 20-30 minutes.

Examiner listens for: Morning stiffness duration, on/off medication variation, impact on ADLs, and any associated painful dystonia.

Avoid: Minimizing stiffness as simply 'tight muscles.' Do not omit painful dystonic episodes, which significantly impact quality of life and sleep.

Slowness of Movement (Bradykinesia)

How to describe it: Describe how long common tasks now take compared to before diagnosis. Provide specific time estimates: 'Dressing takes me 45 minutes versus 10 minutes before.' Describe tasks you have completely stopped doing due to the time and effort required.

Example: On my worst days, bathing and dressing take me over an hour and I require my caregiver's assistance for both. I can no longer prepare meals because standing at the stove and manipulating utensils takes so long that food burns. I have stopped writing checks, as my movements are too slow to complete them before my hand fatigues.

Examiner listens for: Specific ADL impact with time estimates, tasks abandoned, need for caregiver assistance, and fatigability with repeated tasks.

Avoid: Saying 'I move slower than I used to' without quantifying impact. The examiner needs specific examples and functional consequences to document disability accurately.

Gait Disturbance and Falls

How to describe it: Describe your gait pattern (shuffling, short steps, no arm swing), frequency and circumstances of falls, use of assistive devices, freezing episodes (where, how often, how long), and any resulting injuries from falls.

Example: On my worst days, I freeze in every doorway and when approaching my car. I have fallen 8 times in the past year - twice resulting in bruising and once causing a wrist fracture. I use a walker inside the home and a wheelchair for any distances over 50 feet. My gait is so impaired that I cannot navigate stairs safely without a handrail and another person.

Examiner listens for: Fall frequency and injury history, freezing triggers and duration, assistive device use, maximum safe walking distance, and community mobility limitations.

Avoid: Reporting only recent falls and not a full 12-month history. Do not omit near-falls or instability episodes that required grabbing furniture or walls to prevent a fall.

Speech and Swallowing

How to describe it: Describe voice volume (are you frequently asked to repeat yourself?), clarity of speech, drooling frequency and severity, and any history of coughing, choking, or aspiration with eating or drinking.

Example: On my worst days, my voice is so soft that my family cannot understand me on the telephone. I drool continuously and use a bib during meals. I have choked on thin liquids three times in the past month and now use thickened beverages exclusively. I have had one episode of aspiration pneumonia this year requiring hospitalization.

Examiner listens for: Communication impairment affecting social and occupational function, dietary modifications required, aspiration history, and drooling severity affecting hygiene and social participation.

Avoid: Mentioning mild voice softness without describing social isolation, communication barriers, or swallowing complications. Aspirations and hospitalizations must be explicitly reported.

Cognitive and Psychiatric Symptoms

How to describe it: Describe specific memory failures (forgetting appointments, medication names, repeating questions), executive function problems (difficulty planning, managing finances), and mood symptoms (persistent sadness, loss of interest, anxiety, panic) with their daily impact.

Example: On my worst days, I cannot recall what I ate for breakfast or whether I took my medications. I have been unable to manage my own finances for two years and my wife handles all bills. I experience vivid visual hallucinations - I see people in my home who are not there - approximately 3-4 times per week. My depression is so severe that I do not leave my bed on bad days.

Examiner listens for: Objective cognitive decline with functional impact, psychiatric symptom frequency and severity, caregiver burden, and whether symptoms are recognized by family members.

Avoid: Dismissing hallucinations as embarrassing or minimizing depression as 'just feeling down.' Both are neurologically-driven disease manifestations that significantly impact the rating and SMC considerations.

Autonomic Dysfunction (Bladder, Bowel, Orthostasis)

How to describe it: Report exact number of incontinence episodes per day and pads used, constipation frequency (days between bowel movements), and frequency and severity of dizziness when standing including any resulting falls.

Example: On my worst days, I have 4-5 urinary incontinence episodes requiring 5 pad changes daily. I cannot reach the bathroom quickly enough due to my gait limitations. I have not had a bowel movement without laxatives in over two years, and constipation causes daily abdominal pain. When I stand from a seated position, I experience severe dizziness and have fainted twice in the past six months.

Examiner listens for: Specific pad count per day (directly maps to DBQ field RG_5D_Pads_Per_Day_RG), appliance use, constipation frequency and severity, and syncope/presyncope history.

Avoid: Estimating pad use vaguely ('a few per day'). The rating for bladder dysfunction is directly tied to pads per day - know your exact number and report it accurately.