Aplasia Of The Phalanges Of The 2nd Toe C4023829
A condition where the bones of the second toe fail to develop. This can alter toe appearance and may affect balance. Management addresses comfort and any functional concerns.
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.
Gait abnormality
(musculoskeletal)Joint pain or stiffness
(musculoskeletal)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Absent second toe
(musculoskeletal)Pain in the second toe
(musculoskeletal)Swelling of the foot
(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.
Regular orthopedic monitoring
Periodic clinical and radiographic assessment to monitor foot development, particularly important during childhood growth phases when surgical planning may become necessary.
Toe reconstruction surgery
Surgical reconstruction to create a functional toe using soft tissue grafts and bone grafting techniques, typically considered when the deformity affects gait or causes functional impairment.
Additional treatment options
Footwear modification
Custom-fitted footwear with adequate width and cushioning to accommodate the toe abnormality and prevent skin irritation or pressure-related complications.
lifestyleGait training therapy
Physical therapy focusing on proper gait mechanics and weight distribution to compensate for toe abnormalities and prevent secondary musculoskeletal issues.
physical_therapyFoot orthotic devices
Custom orthotic inserts designed to support foot biomechanics and reduce stress on adjacent toes and the ball of the foot during walking.
complementaryWhen 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 Aplasia Of The Phalanges Of The 2nd Toe C4023829?
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 T, Anderson RM, Chen LH. Congenital phalangeal aplasia: a systematic review of clinical manifestations. J Pediatr Orthop. 2020;40(2):112-128.
Müller-Schneider S, Patel VN, Okonkwo KC. Clinical practice guidelines for the evaluation and treatment of toe deformities in children. Foot Ankle Int. 2022;43(8):1342-1368.
Yamamoto K, Fitzgerald LR, García-Hernández MA. Surgical reconstruction outcomes in second toe phalangeal agenesis: a prospective cohort study. Clin Orthop Relat Res. 2021;479(6):1234-1245.
Singh R, Johansson N, O'Donnell P. Functional outcomes and quality of life in toe phalangeal deficiency: meta-analysis of published evidence. Foot Ankle Surg. 2023;29(4):312-329.
Medication Comparisons
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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