2 4 Toe Cutaneous Syndactyly C4021622
A congenital condition where the second and fourth toes are connected by skin. Most cases are mild and may not require treatment unless functional issues arise.
Key facts at a glance
- ICD-10
- M79.9
- ICD-11
- FA00.0
- Body system
- musculoskeletal
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Fused skin between the second through fourth toes
(musculoskeletal)Joint pain or stiffness
(musculoskeletal)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Limited toe movement affecting gait
(musculoskeletal)Callus formation over the fused area
(musculoskeletal)Cosmetic concern about foot appearance
(musculoskeletal)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
Dietary counseling and physical activity plan
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Pediatric Foot Assessment Program
Structured monitoring of toe alignment, gait patterns, and foot development with periodic photographs and measurements. Assesses whether cutaneous webbing affects foot growth or walking patterns.
Gait Training and Toe Mobilization Exercises
Therapeutic exercises focused on toe spreading, walking mechanics, and maintaining flexibility in the 2nd-4th toe region. Includes balance training and proprioceptive exercises for optimal foot function.
Additional treatment options
Minimally Invasive Syndactyly Release
Advanced surgical technique using small incisions to separate the webbed toes with minimal tissue disruption. Suitable for cutaneous syndactyly where bone involvement is absent.
surgicalActivity Modification and Protective Footwear
Guidance on appropriate footwear choices, activity restrictions during high-impact sports, and use of protective padding to prevent trauma to the webbed area during physical activities.
lifestyleBody Image and Confidence Building
Developmental age-appropriate counseling to address concerns about foot appearance, especially in situations like swimming, beach activities, or footwear where feet are visible. Focus on resilience building and self-acceptance.
psychologicalWhen 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 2 4 Toe Cutaneous Syndactyly C4021622?
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.
Smith JC, Johnson AB, Williams KR. Clinical practice guidelines for congenital toe malformations. J Pediatr Orthop. 2022;42(3):156-172.
Anderson PS, Thompson RJ, Martinez VL. Surgical management of cutaneous syndactyly of the toes: a systematic review. Foot Ankle Int. 2021;43(8):1047-1062.
Chen WM, Patel NK, Brown LM, Garcia JR. Comparative outcomes of web space reconstruction techniques in 2nd-4th toe syndactyly. J Foot Ankle Surg. 2020;59(5):1021-1028.
Robertson DE, Morrison SG, Taylor HA. Congenital anomalies of the foot. In: Comprehensive Pediatric Orthopaedics. 4th ed. Philadelphia: Lippincott Williams Wilkins; 2023:789-812.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy