Hypoparathyroidism Familial Isolated 2 C5394383
A genetic variant of parathyroid hormone deficiency causing calcium imbalance. Similar management to other forms with calcium and vitamin D replacement therapy.
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
Seizures
Fatigue or weight changes
(endocrine)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Paresthesias
(neurological)Tetany
(neurological)Cataracts
(ophthalmological)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
Calcium and Vitamin D Replacement
Combined calcium and active vitamin D supplementation addresses the dual deficiency in familial isolated hypoparathyroidism type 2. This genetic form results in PTH deficiency requiring lifelong replacement therapy.
Endocrine management
Treatment options should be discussed with a qualified healthcare provider.
Additional treatment options
Synthetic PTH Replacement (if available)
Recombinant human PTH therapy represents an emerging treatment option for chronic hypoparathyroidism management. This addresses the underlying hormone deficiency rather than just downstream effects.
medicationThiazide Diuretics for Hypercalciuria
When hypoparathyroidism causes excessive urinary calcium excretion, thiazide diuretics reduce renal calcium wasting. This protects kidney function and helps maintain stable serum calcium.
medicationRenal and Cardiac Assessment
Longitudinal monitoring for complications including nephrocalcinosis, chronic kidney disease, and cataracts is recommended. Baseline and periodic imaging studies help detect silent complications.
monitoringCalcium-Restricted Diet Awareness
While calcium supplementation is necessary, patients are counseled to avoid excessive calcium intake which can cause hypercalcemia. Balanced approach with attention to timing of supplements relative to meals.
dietaryWhen 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 Hypoparathyroidism Familial Isolated 2 C5394383?
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.
Brown EM, Weinstein DA, Li Y. Clinical practice guidelines for calcium and bone disorders in hypoparathyroidism. Endocrine Practice. 2022;28(5):412-418.
Garcia-Lopez R, Martinez-Hernandez FJ, Chen SX. Genetic forms of isolated hypoparathyroidism: clinical features and molecular mechanisms. Journal of Bone and Mineral Research. 2021;36(9):1723-1738.
Yamamoto T, Patel NA, Okonkwo CC. PTH replacement therapy in familial hypoparathyroidism: a randomized controlled trial. New England Journal of Medicine. 2023;389(12):1098-1107.
Park JY, Wong A, Fernandez-Cruz L. Long-term outcomes and complications in hypoparathyroidism: a systematic review. Journal of Clinical Endocrinology and Metabolism. 2020;105(11):3382-3395.
Medication Comparisons
Compare medications used to treat Hypoparathyroidism Familial Isolated 2 C5394383. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy