Thyroid and Parathyroid Conditions C&P Exam Prep

Thyroid Function Panel (TSH, Free T4, Free T3)

What it measures: TSH measures pituitary signal to the thyroid; elevated TSH indicates hypothyroidism, suppressed TSH indicates hyperthyroidism. Free T4 and Free T3 measure active thyroid hormones circulating in the blood.

What to expect: The examiner will review existing lab values from your records. Bring the most recent and any historical results showing fluctuations. The examiner may order new labs if recent values are unavailable. Normal TSH is approximately 0.4-4.0 mIU/L; ranges vary by lab.

Pain considerations: Thyroid dysfunction itself does not cause pain measured by TSH, but symptoms like muscle aches, joint pain, and fatigue should be separately articulated to the examiner.

Thyroid Antibodies (TPO Antibodies, TRAb, Thyroglobulin Antibodies)

What it measures: Detects autoimmune thyroid disease such as Hashimoto's thyroiditis or Graves' disease. Elevated antibodies confirm an autoimmune etiology and may support a service connection nexus argument.

What to expect: The examiner will review antibody results from your records. These are particularly important if your condition is Graves' disease (DC 7900) or autoimmune thyroiditis (DC 7906).

Pain considerations: Elevated antibodies may correlate with inflammatory symptoms including neck tenderness in thyroiditis; describe any neck discomfort or tenderness to the examiner.

Serum Calcium and Ionized Calcium / PTH Level

What it measures: Evaluates parathyroid function. Elevated calcium (hypercalcemia) and elevated PTH indicate hyperparathyroidism. Low PTH with low calcium indicates hypoparathyroidism. Critical for rating under DC 7904 (hyperparathyroidism) and DC 7905 (hypoparathyroidism).

What to expect: If you have a parathyroid condition, the examiner will review PTH and calcium lab results. The DBQ specifically asks about hypercalcemia indicated by: bone mineral density T-score less than or equal to -2.5, total calcium greater than 12 mg/dL (3.0 mmol/L), ionized calcium greater than 5.6 mg/dL (1.4 mmol/L), or creatinine clearance less than 60 mL/min.

Pain considerations: Bone pain and joint aches from hypercalcemia should be described as a separate symptom category; describe location, frequency, and intensity.

Heart Rate and Pulse Character

What it measures: Elevated resting heart rate (tachycardia) and irregular pulse are hallmark findings of hyperthyroidism and Graves' disease. The DBQ specifically documents heart rate and blood pressure. Hyperthyroid heart disease is separately rated under DC 7008.

What to expect: The examiner will take your vital signs during the exam. Be aware that anxiety about the exam itself may temporarily elevate your heart rate. Bring documentation of heart rate measurements from your primary care or endocrinology visits to establish a pattern.

Pain considerations: Palpitations, chest pounding, and shortness of breath related to elevated heart rate should be described in detail, including frequency and impact on physical activity.

Thyroid Imaging (Ultrasound, Thyroid Scan, CT, MRI)

What it measures: Thyroid ultrasound assesses size, nodules, and structural abnormalities. Thyroid scan (radioiodine uptake) evaluates functional activity. CT/MRI may assess compressive effects on trachea/esophagus. The DBQ documents findings from each imaging modality.

What to expect: The examiner will review existing imaging reports. A new exam-day ultrasound is not typically performed. Bring all imaging reports with dates and findings.

Pain considerations: If an enlarged thyroid causes neck pressure, difficulty swallowing, or voice changes, describe these symptoms specifically and in detail.

100%

DC 7900 Hyperthyroidism (Graves' disease): Warm, moist skin; tachycardia greater than 100 beats per minute; eye involvement (exophthalmos); muscular weakness (tremors); weight loss greater than 15 percent; emotional instability; heat intolerance. DC 7903 Hypothyroidism: Hypothyroidism with cold intolerance, muscular weakness, cardiovascular involvement, or mental symptoms. DC 7907/7908 Malignant neoplasm of thyroid or parathyroid: Active malignancy or during period of treatment (rated 100% until treatment completion, then residuals evaluated). DC 7904 Hyperparathyroidism: Hypercalcemia requiring treatment AND with bone mineral density T-score - -2.5, total calcium > 12 mg/dL, ionized calcium > 5.6 mg/dL, OR creatinine clearance < 60 mL/min. NOTE: Also evaluate myxedema (severe hypothyroidism with characteristic physical findings) at 100% under DC 7903.

From 38 CFR: Graves' disease with exophthalmos, tachycardia, weight loss >15%, and muscular weakness. Hypothyroidism with myxedema, cardiovascular involvement, and mental symptoms. Active thyroid or parathyroid malignancy during treatment period.

60%

DC 7900 Hyperthyroidism: Warm, moist skin; tachycardia greater than 100 beats per minute; muscular weakness (no tremors); some weight loss; emotional instability; heat intolerance - without the full constellation of 100% criteria. DC 7903 Hypothyroidism: Persistent symptoms despite treatment including fatigue, cold intolerance, constipation, weight gain, cognitive slowing, and mild cardiovascular manifestations. DC 7904 Hyperparathyroidism: Hypercalcemia present but not yet meeting all 100% criteria thresholds; symptomatic with fatigue, bone pain, nausea.

From 38 CFR: Hyperthyroidism with tachycardia and muscular weakness but without full Graves' eye disease or severe weight loss. Hypothyroidism with persistent fatigue and cold intolerance despite levothyroxine therapy.

30%

DC 7900 Hyperthyroidism: Moist skin, slight tremor, tachycardia 80-100 bpm, some heat intolerance, and emotional instability - mild manifestations. DC 7903 Hypothyroidism: Mild symptoms with some fatigue, mild cold intolerance, skin changes, or hair loss, with thyroid function maintained near normal on replacement therapy. Symptoms present but not severely disabling.

From 38 CFR: Mild hyperthyroidism with slight tremor, moist skin, heart rate in the 80-100 bpm range, and some heat intolerance. Mild hypothyroidism with fatigue and cold intolerance managed on levothyroxine but with residual symptoms.

10%

Hypothyroidism or hyperthyroidism currently controlled by treatment with minimal or no persistent symptoms. Thyroiditis with normal thyroid function (euthyroid) is rated 0% under DC 7906 but may be upgraded if manifesting as hypo- or hyperthyroidism. Non-toxic thyroid enlargement without dysfunction or significant symptoms. Residual scarring or mild surgical changes without functional impairment.

From 38 CFR: Hypothyroidism well-controlled on levothyroxine with occasional mild fatigue but no cardiovascular, neurological, or musculoskeletal involvement. Post-thyroidectomy scar without functional limitation.

0%

Thyroiditis with normal thyroid function (euthyroid) per DC 7906. No current symptoms, no functional impairment, no ongoing treatment required, and all labs within normal limits. Condition resolved without residual disability. NOTE: A 0% rating still establishes service connection, which is important for potential future increases and eligibility for related secondary conditions.

From 38 CFR: Thyroiditis (DC 7906) with normal thyroid function currently. Resolved benign thyroid nodule with no remaining dysfunction.

Fatigue and Energy

How to describe it: Describe fatigue in concrete, functional terms: how many hours per day you can be active before needing to rest, whether you need to nap during the day, how fatigue affects your ability to work, perform household tasks, or participate in social activities. Note whether fatigue is present even after adequate sleep.

Example: On my worst days, I wake up already exhausted even after 9 hours of sleep. By noon I cannot stay awake and must lie down for 1-2 hours. I cannot complete basic household tasks like grocery shopping or cooking without stopping to rest multiple times. I have called out sick from work on average twice per month due to fatigue alone.

Examiner listens for: The examiner is looking for whether fatigue is a persistent, disabling symptom separate from normal tiredness. They want to hear specific examples that demonstrate functional impairment for the DBQ field on functional impact.

Avoid: Saying 'I'm a little tired sometimes' when you mean 'I am unable to work a full shift or complete daily activities without significant rest periods.' Do not minimize fatigue as something you simply push through - describe its real impact.

Cardiovascular Symptoms (Palpitations, Tachycardia, Heat Intolerance)

How to describe it: Describe frequency of palpitations (how many times per week, duration of each episode), resting heart rate at home, and impact on physical exertion. For heat intolerance, describe specific situations where heat causes distress and how you adapt your life to avoid heat exposure.

Example: On my worst days, my heart is racing at rest - I have documented home readings of 110-120 beats per minute. I feel my heart pounding when lying still in bed. I cannot tolerate temperatures above 75 degrees and have had to leave work environments due to heat. I use air conditioning year-round even in winter to stay comfortable.

Examiner listens for: Consistent resting tachycardia above 100 bpm, documented palpitation episodes, heat sensitivity that limits work or activity, and whether these symptoms occur despite medication. The examiner will document your heart rate and blood pressure at exam.

Avoid: Do not say 'my heart races sometimes when I exercise' if you have resting tachycardia. Do not wait until asked - proactively describe palpitations and heat intolerance. Do not attribute these symptoms to anxiety without clarifying they are thyroid-related.

Cold Intolerance and Temperature Sensitivity (Hypothyroid)

How to describe it: Describe specific scenarios: what temperature triggers symptoms, how many layers of clothing you need, whether you use a space heater when others are comfortable, and how cold intolerance limits your ability to work outdoors or in air-conditioned environments.

Example: I wear a winter coat inside air-conditioned buildings year-round. When exposed to temperatures below 68 degrees I experience uncontrollable shivering, profound fatigue, and difficulty thinking clearly. I have had to decline work assignments requiring outdoor activity during fall and winter months.

Examiner listens for: Cold intolerance that is disproportionate to environmental conditions, concrete adaptive behaviors (extra layers, space heaters), and functional limitations in work or daily life due to temperature sensitivity.

Avoid: Avoid simply saying 'I get cold easily.' Describe the severity and functional impact. Do not omit winter months or season-specific problems.

Weight Changes

How to describe it: Provide specific weight data: your pre-illness weight, current weight, highest or lowest weight since diagnosis, and the timeframe of change. For hyperthyroidism, describe unintentional weight loss despite normal or increased appetite. For hypothyroidism, describe weight gain despite dietary restriction.

Example: At my worst I lost 22 pounds in 3 months without trying to lose weight - I was eating more than usual but couldn't maintain my weight. My clothes no longer fit and I had visible muscle wasting in my arms and legs. I have documentation from my primary care physician showing the weight loss.

Examiner listens for: Weight loss greater than 15 percent of body weight is a specific rating criterion for 100% under DC 7900. The examiner will want documented weights from medical records, not just your estimate.

Avoid: Do not guess your weight loss - bring medical records showing serial weights. Do not minimize weight loss by saying 'I lost a little weight.'

Cognitive and Psychological Symptoms

How to describe it: Describe memory problems, difficulty concentrating, brain fog, emotional lability, anxiety, or depression in specific, functional terms. Note how these affect work performance, relationships, and daily decision-making. Distinguish thyroid-related cognitive symptoms from any separately diagnosed psychiatric conditions.

Example: On my worst days I cannot remember whether I have taken my medication, lose track of conversations mid-sentence, and cannot complete simple paperwork without rereading the same line multiple times. I have made errors at work that I attribute to cognitive dysfunction and received a written warning.

Examiner listens for: Cognitive symptoms that map to thyroid dysfunction (hypothyroid slowing or hyperthyroid anxiety/emotional instability), functional impact on employment or ADLs, and whether symptoms persist despite treatment.

Avoid: Do not say 'I'm just a little forgetful' when you experience significant cognitive dysfunction. Do not omit psychological symptoms from thyroid conditions out of embarrassment - they are legitimate, documentable rating factors.

Eye Involvement (Graves' Ophthalmopathy, Exophthalmos)

How to describe it: Describe eye bulging (proptosis), double vision (diplopia), eye pain, tearing, light sensitivity, and any changes in vision. Note whether eye symptoms have required separate treatment including eye drops, steroids, orbital decompression, or radiation. Eye conditions due to thyroid disease are separately rated under DC 6090 (diplopia) or DC 6061-6066 (visual acuity impairment).

Example: My eyes protrude visibly - multiple people have commented on the change in my appearance. I have constant eye pressure, my vision doubles when looking to the right, and I cannot drive at night due to light sensitivity. My ophthalmologist has recommended orbital decompression surgery.

Examiner listens for: Documented exophthalmos, diplopia, corneal involvement, or visual acuity changes. The examiner will note eye involvement on the DBQ and refer for a separate ophthalmology DBQ. Make sure to clearly request evaluation for a separate eye rating.

Avoid: Do not omit eye symptoms even if you think they are minor. Even mild proptosis or intermittent double vision may qualify for a separate compensable rating under the eye schedule.

Musculoskeletal Symptoms (Weakness, Tremor, Muscle/Joint Pain)

How to describe it: Describe muscle weakness in functional terms: difficulty climbing stairs, rising from a chair, carrying groceries, or lifting. For tremors, describe which body parts are affected, frequency, and whether tremors interfere with writing, eating, or fine motor tasks. For bone or joint pain from parathyroid conditions, describe location, severity on a 0-10 scale, frequency, and what makes it worse.

Example: My hand tremor is so severe on bad days that I cannot hold a cup of coffee without spilling it. I have dropped items at work due to hand weakness. My thigh muscles are so weak I need to use handrails and cannot rise from a low chair without pushing off with my arms.

Examiner listens for: Objective tremor on exam, proximal muscle weakness (difficulty rising from chair, climbing stairs), and documentation of how musculoskeletal symptoms impair occupational and daily functioning. The examiner may refer for a separate musculoskeletal DBQ.

Avoid: Do not say 'I'm a bit shaky' when you have a disabling tremor. Do not minimize muscle weakness as 'I just need to exercise more.' Describe the true functional impact.

Gastrointestinal Symptoms (Nausea, Constipation, Anorexia)

How to describe it: Describe frequency of nausea (how many days per week), whether it leads to vomiting, whether it affects your ability to eat regular meals, and how constipation affects your daily routine. Note whether these symptoms are present despite treatment and whether they require separate management.

Example: I experience nausea 4-5 days per week that prevents me from eating breakfast. My constipation requires daily laxative use and I have had to miss work due to abdominal cramping. I have lost interest in food and frequently skip meals due to nausea.

Examiner listens for: GI symptoms (nausea, constipation, anorexia) that are consistent with either hypothyroidism or hypercalcemia, their frequency and functional impact, and whether they require treatment. The examiner may refer for a separate GI DBQ.

Avoid: Do not dismiss GI symptoms as separate from your thyroid condition. They are documented DBQ fields and contribute to the overall disability picture.

Skin and Hair Changes

How to describe it: Describe skin texture changes (dry, rough, myxedematous thickening for hypothyroid; warm, moist, sweaty for hyperthyroid), hair loss patterns (diffuse thinning, eyebrow loss for hypothyroid), nail changes, and any scar characteristics from thyroid surgery. For surgical scars, describe location, length, width, whether raised or depressed, and any restricted movement.

Example: My skin is so dry and thickened it cracks and bleeds in winter despite daily moisturizer. I have lost the outer third of both eyebrows and my hair has thinned by approximately 50 percent requiring me to change my hairstyle to cover it. My surgical scar is raised, 8 cm long, and uncomfortable when wearing collared shirts.

Examiner listens for: Objective skin findings on exam including texture, pigmentation changes, hair and nail changes, and surgical scar characteristics. Scar findings feed into the disfigurement and scar evaluation sections of the DBQ.

Avoid: Do not fail to mention hair loss or skin changes because you think they are cosmetic. They are legitimate symptoms of thyroid dysfunction and are evaluated on the DBQ.

Functional Impact on Work and Daily Activities

How to describe it: Describe specific work tasks you cannot perform, number of sick days taken, any job accommodations made, and whether you have had to reduce work hours or change jobs due to your thyroid condition. Describe impacts on household tasks, childcare, social activities, and self-care.

Example: I was forced to reduce from full-time to part-time work due to fatigue and cognitive symptoms. I cannot stand for more than 30 minutes at a time, cannot work in environments above 72 degrees, and have had to hire assistance for yard work and grocery shopping. My spouse has taken over meal preparation because I lack the energy to cook.

Examiner listens for: The DBQ has a dedicated functional impact section. The examiner needs specific examples of how the condition limits occupational and daily functioning - this directly feeds the disability narrative and can support extraschedular consideration.

Avoid: Do not say 'it affects my life a little.' Be specific, concrete, and comprehensive. The functional impact section of the DBQ is a critical rating factor.