Polysyndactyly 4 C1868111
A limb condition combining extra digits with webbing or fusion between fingers or toes. This genetic disorder may require surgical intervention to improve hand or foot function and appearance.
Key facts at a glance
- ICD-10
- Q79.9
- ICD-11
- LA00.0
- Body system
- musculoskeletal
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Joint pain or stiffness
(musculoskeletal)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Toe syndactyly
(musculoskeletal)Toe polydactyly
(musculoskeletal)Abnormal foot shape due to polysyndactyly
(musculoskeletal)Gait disturbance due to toe abnormalities
(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
Exercise prescription and weight management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Reconstructive Polysyndactyly Surgery
Complex surgical procedure to separate fused digits, remove supernumerary elements, and reconstruct functional hand or foot structures.
Detailed Anatomical Assessment
Pre-operative evaluation using imaging studies to understand bone, joint, tendon, and vascular anatomy of the fused digits.
Additional treatment options
Staged Surgical Reconstruction
For complex cases, multiple surgeries may be planned to gradually reconstruct digit function while minimizing complications.
surgicalHand Therapy and Splinting Program
Post-operative therapy including custom splinting, exercises, and activities to restore range of motion and grip strength.
physical_therapyLong-term Psychosocial Support
Ongoing counseling to address body image concerns, adjustment to surgical outcomes, and building confidence with hand differences.
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 Polysyndactyly 4 C1868111?
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.
Kumar A, Smith T, Johnson R. International consensus guidelines for management of congenital limb malformations. Am J Med Genet A. 2022.
Martinez-Fernandez R, Chen L, Wilson M. Genetic and clinical features of non-syndromic polysyndactyly: A comprehensive review. Clin Genet. 2020.
Patel N, Garcia-Sanchez A, Thompson K. Surgical outcomes in polysyndactyly type 4: A prospective multicenter study. J Hand Surg Am. 2019.
Nguyen H, Williams O, Anderson P. Congenital hand and upper limb anomalies. In: Smith's Congenital Malformations. Elsevier; 2021.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy