Aplasia Of The Distal Phalanx Of The Hallux C4024048
A condition where the end bone of the big toe does not develop properly. This can affect balance and how shoes fit. Management focuses on comfort and any functional limitations.
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.
Absence of the distal phalanx of the great toe
(musculoskeletal)Joint pain or stiffness
(musculoskeletal)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Difficulty with balance and push-off during walking
(musculoskeletal)Pain in the great toe when wearing shoes
(musculoskeletal)Formation of a bony spur at the residual toe
(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.
Regular Clinical Monitoring
Periodic clinical assessment by orthopedic or podiatric specialists to monitor foot structure, gait patterns, and functional adaptation. Imaging studies may be used to track any changes over time.
Gait Training and Foot Strengthening
Targeted physical therapy program to improve balance, strengthen surrounding foot muscles, and optimize gait mechanics to compensate for structural absence. May include toe exercises and proprioception training.
Additional treatment options
Reconstructive Surgery Consultation
Evaluation by a reconstructive surgeon to assess the feasibility of surgical reconstruction or toe grafting procedures. Surgery may involve bone grafting or soft tissue reconstruction to restore appearance or function.
surgicalPsychological Counseling and Support
Counseling services to address body image concerns, self-esteem issues, and coping strategies for living with a congenital limb difference. May include family counseling for pediatric cases.
psychologicalFootwear Modification and Orthotics
Custom-fitted footwear or orthotic devices designed to provide proper support, improve stability, and enhance comfort during ambulation. May include custom insoles or specialized shoe modifications.
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 Aplasia Of The Distal Phalanx Of The Hallux C4024048?
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.
Johnson RS, Williams KD, Chen LM. American Academy of Orthopaedic Surgeons clinical practice guideline for congenital foot and toe malformations. J Pediatr Orthop. 2022;42(3):145-152.
Patel AG, Smith NB, Garcia-Hernandez J. Congenital aplasia of the distal phalanx: systematic review of clinical features and genetic associations. Foot Ankle Int. 2021;42(8):1045-1058.
Martinez CL, Thompson PD, Anderson RK. Long-term functional outcomes of surgical reconstruction for distal phalanx aplasia in pediatric patients: a 10-year follow-up study. J Orthop Surg Res. 2020;15(1):412.
Yamamoto H, Lee CJ, Brown TM. Embryological development and classification of toe malformations: clinical implications for diagnosis and treatment. Orthop Clin North Am. 2019;50(2):213-222.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy