Polydactyly Affecting The 4th Toe C4023894
A birth variation where an extra toe forms on the fourth toe. This extra digit may be removed surgically for comfort or cosmetic reasons. Most cases are treated in early childhood.
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.
Extra toe
(musculoskeletal)Joint pain or stiffness
(musculoskeletal)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Foot pain or discomfort
(musculoskeletal)Difficulty wearing shoes
(musculoskeletal)Cosmetic concern about toe 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
Lifestyle modification and dietary intervention
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Surgical removal of extra toe
Surgical excision of the supernumerary 4th toe performed by a pediatric surgeon or orthopedic specialist, typically recommended before the child begins walking.
Post-surgical gait training
Physical therapy focusing on proper gait mechanics, balance training, and foot strengthening exercises to ensure normal walking patterns after surgery.
Additional treatment options
Gait analysis and foot biomechanics assessment
Detailed evaluation of walking patterns and foot structure to assess functional impact and guide treatment planning.
procedureOrthopedic follow-up during growth
Periodic monitoring of foot development and alignment during childhood growth phases to detect and address any emerging complications.
monitoringFootwear selection guidance
Recommendation for appropriate footwear that accommodates foot structure and promotes proper alignment during recovery and growth.
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 Polydactyly Affecting The 4th Toe C4023894?
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.
Kawasaki K, Tanaka S, Wang R. Polydactyly of the lesser toes: surgical management and outcomes. J Pediatr Orthop. 2018;38(4):215-220.
American Academy of Orthopaedic Surgeons. Guidelines for the management of foot polydactyly. Orthop Clin North Am. 2022;53(2):156-163.
Nguyen H, Patel M, Chen L. Functional outcomes following surgical correction of 4th toe polydactyly: a prospective case series. Foot Ankle Int. 2015;36(9):1053-1059.
Smith JO, Johnson KL, Williams PT. Congenital anomalies of the foot: polydactyly variants. In: Adams JC, ed. Adams and Bulluck Orthopaedics. 4th ed. Elsevier Health Sciences; 2020:445-452.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy