Abnormal Circulating Thyroid Hormone Concentration C4531077
A condition where thyroid hormone levels are abnormal, affecting metabolism and energy. Both high and low levels can cause various symptoms. Treatment aims to restore normal hormone balance with medication.
Key facts at a glance
- ICD-10
- E34.9
- ICD-11
- 5A00.0
- Body system
- endocrine
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Atrial fibrillation
Irregular and often rapid heart rate causing poor blood flow, detectable on ECG.
Seek immediate care if experiencing chest pain, severe shortness of breath, fainting, or dizziness.
Thyroid storm
Life-threatening exacerbation of hyperthyroidism with extremely high fever, severe tachycardia, and delirium.
This is a medical emergency. Call emergency services immediately if experiencing high fever over 104°F, confusion, vomiting, or loss of consciousness.
Fatigue
(constitutional)Persistent feeling of tiredness, weakness, and low energy that does not improve with rest.
Frequency: 70-80% of patients
Palpitations
(cardiovascular)Awareness of rapid, irregular, or forceful heartbeat, often described as fluttering or pounding in the chest.
Frequency: 60-70% of patients
Unintentional weight changes
(constitutional)Significant weight loss (hyperthyroidism) or weight gain (hypothyroidism) without changes in diet or exercise.
Frequency: 75-85% of patients
Tremor
(neurologic)Fine shaking or trembling of the hands and fingers, often noticeable when holding arms outstretched.
Frequency: 40-50% of patients
Bowel habit changes
(gastrointestinal)Diarrhea (hyperthyroidism) or constipation (hypothyroidism) occurring more frequently than usual.
Frequency: 30-40% of patients
Skin changes
(dermatologic)Dry, coarse, cool skin (hypothyroidism) or warm, moist, smooth skin (hyperthyroidism).
Frequency: 35-45% of patients
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Endocrine management
Treatment options should be discussed with a qualified healthcare provider.
Thyroid hormone modulation therapy
Pharmacological treatment to normalize thyroid hormone levels, using either thyroid hormone replacement for hypothyroidism or antithyroid medications for hyperthyroidism. Treatment selection depends on the underlying cause and severity.
Thyroid function panel monitoring
Regular blood testing to measure T3, T4, and TSH levels to guide treatment decisions and ensure optimal hormone normalization. Monitoring frequency decreases as values stabilize.
Additional treatment options
Thyroid-supportive nutrition
Implementation of a balanced diet supporting thyroid health, including adequate protein, selenium, zinc, and appropriate iodine while avoiding goitrogenic foods in excessive amounts.
dietaryActivity level modification
Tailored exercise program appropriate to thyroid status, with hyperthyroid patients avoiding excessive exertion until stabilized, and hypothyroid patients gradually increasing activity.
lifestyleRadioactive iodine ablation
Ablative procedure for hyperthyroidism where radioactive iodine is administered to reduce overactive thyroid tissue. Reserved for cases not controlled by medication or when other treatments are not suitable.
procedureWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Abnormal Circulating Thyroid Hormone Concentration C4531077?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Jonklaas J, Bianco AC, Bauer AJ, Burman KD, Cappola AR, Celi FS, et al. Guidelines for the treatment of hypothyroidism: prepared by the American Thyroid Association Task Force on Thyroid Hormone Replacement. Thyroid. 2014;24(12):1670-1751.
Ross DS, Burch HB, Cooper DS, Greenlee MC, Laurberg P, Maia AL, et al. 2016 American Thyroid Association Guidelines for Diagnosis and Management of Hyperthyroidism and Other Causes of Thyrotoxicosis. Thyroid. 2016;26(10):1343-1421.
Biondi B, Wartofsky L. Thyroid hormone treatment: when and what? J Clin Endocrinol Metab. 2022;107(5):1444-1461.
Pearce SH, Brabant G, Duntas LH, Monzani F, Peeters RP, Razvi S, et al. 2013 ETA Guideline: Management of Subclinical Hypothyroidism. Eur Thyroid J. 2013;2(4):215-228.
Feller M, Snel M, Moutzouri T, Bauer DC, de Montmollin M, Aujesky D, et al. Association of Thyroid Hormone Therapy With Quality of Life and Thyroid-Related Symptoms in Patients With Subclinical Hypothyroidism: A Systematic Review and Meta-analysis. JAMA. 2018;320(13):1349-1359.
Garber JR, Cobin RH, Gharib H, Hennessey JV, Klein I, Mechanick JI, et al. Clinical practice guidelines for hypothyroidism in adults: cosponsored by the American Association of Clinical Endocrinologists and the American Thyroid Association. Endocr Pract. 2012;18(6):988-1028.
Chaker L, Bianco AC, Jonklaas J, Peeters RP. Hypothyroidism. Lancet. 2017;390(10101):1550-1562.
Stott DJ, Rodondi N, Kearney PM, Ford I, Westendorp RGJ, Mooijaart SP, et al. Thyroid Hormone Therapy for Older Adults with Subclinical Hypothyroidism. N Engl J Med. 2017;376(20):1914-1924.
Medication Comparisons
Compare medications used to treat Abnormal Circulating Thyroid Hormone Concentration C4531077. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy