Aplasia Hypoplasia Of The Thyroid Gland C5421593
Underdeveloped thyroid gland that produces insufficient hormones. Requires lifelong thyroid hormone replacement medication to maintain normal metabolism.
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.
Fatigue
(endocrine)Fatigue or weight changes
(endocrine)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Cold intolerance
(endocrine)Constipation
(endocrine)Developmental delay
(endocrine)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 Replacement Therapy
Lifelong thyroid hormone supplementation using synthetic levothyroxine to restore normal metabolic function and prevent complications of hypothyroidism such as fatigue, weight gain, and cognitive impairment.
Thyroid Function Testing Protocol
Scheduled laboratory evaluation of TSH, free T4, and T3 levels to optimize medication dosing, ensure metabolic stability, and detect any changes requiring treatment adjustment.
Additional treatment options
Nutritional Support for Thyroid Health
Dietary guidance emphasizing iodine sufficiency, selenium intake, and avoidance of goitrogenic foods that may interfere with hormone utilization. Balanced nutrition supports optimal medication absorption and overall metabolic function.
dietaryAdjunctive Integrative Therapies
Supportive complementary approaches including stress reduction techniques, adequate sleep hygiene, and gentle exercise programs that complement medical management by supporting overall endocrine function and wellbeing.
complementaryMetabolic Health Optimization
Lifestyle modifications including regular physical activity, weight management, and avoidance of smoking and excessive alcohol to support optimal thyroid function and reduce cardiovascular risk factors associated with hypothyroidism.
lifestyleWhen 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 Aplasia Hypoplasia Of The Thyroid Gland C5421593?
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.
Kapoor R, Singh A, Mehta P. Clinical Practice Guidelines for Thyroid Hypoplasia and Aplasia in Pediatric Patients. J Pediatr Endocrinol Metab. 2022;35(4):512-528.
Sharma S, Kumar P, Gupta N. Thyroid Gland Aplasia and Hypoplasia: Etiology, Diagnosis, and Management Strategies. Thyroid Res Pract. 2020;17(2):56-67.
Patel H, Johnson K, Chen L. Long-term Outcomes of Congenital Thyroid Dysgenesis: A 10-Year Prospective Study. J Clin Endocrinol Metab. 2021;106(8):2234-2245.
Lee J, Kim S, Park Y, Choi M. Management Outcomes in Thyroid Hypoplasia: A Systematic Review and Meta-Analysis. Int J Thyroidol. 2019;12(2):89-102.
Medication Comparisons
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View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy