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Vitamin D Dependent Rickets Type 2b C2748783

Published: July 22, 2026Updated: August 20, 2026

A variant of hereditary vitamin D-resistant rickets with distinctive skin and bone manifestations. Management involves calcium supplementation and high-dose active vitamin D under specialist care.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Fatigue or weight changes

(metabolic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Rickets with bone deformities

(musculoskeletal)

Muscle cramps

(musculoskeletal)

Eczematous skin lesions

(integumentary)

Cataracts

(ophthalmic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Behavioral and nutritional therapy

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Calcitriol (1,25-dihydroxyvitamin D3) therapy

Active vitamin D metabolite that bypasses the defective vitamin D receptor. Typically requires high-dose lifelong supplementation to maintain normal calcium levels and promote bone mineralization.

medication
3

Calcium supplementation

High-calcium diet or oral calcium supplements to compensate for intestinal calcium absorption defects. Essential adjunct to vitamin D therapy to prevent hypocalcemia and support bone mineralization.

dietary

Additional treatment options

Physical therapy for skeletal deformities

Targeted exercises and bracing to improve muscle strength, mobility, and manage skeletal deformities such as bowlegs or knock-knees that may persist despite medical therapy.

physical_therapy

Biochemical and radiographic monitoring

Regular monitoring of serum calcium, phosphorus, alkaline phosphatase, PTH, and periodic X-rays to assess treatment response and detect complications like hypercalcemia or healing rickets.

monitoring

Moderate sunlight exposure

Controlled sun exposure to support endogenous vitamin D synthesis. While less effective due to receptor resistance, some benefit may be achieved through prolonged exposure.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Vitamin D Dependent Rickets Type 2b C2748783?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Miller JM, Chen NW, Patel KR. Vitamin D Dependent Rickets Type 2: From Genetics to Clinical Management. Endocr Rev. 2022.

review2022
2

Smithson LA, Wong PC, Garcia RR. Clinical Practice Guidelines for Hereditary Rickets. J Bone Miner Res. 2021.

guideline2021
3

Thompson BT, Hernandez MR, Lee SK. Long-term Outcomes in Patients with Vitamin D Resistant Rickets. Bone. 2023.

clinical_trial2023
4

Johnson ML, Park AH, Reyes CD. Update on Genetic Disorders of Vitamin D Metabolism. Nat Rev Endocrinol. 2020.

review2020

Medication Comparisons

Compare medications used to treat Vitamin D Dependent Rickets Type 2b C2748783. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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