Distal 4th Toe Symphalangism C4022050
Fusion of bones in the fourth toe leading to reduced flexibility. Often a congenital condition with mild impact on function.
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.
Fused fourth toe
(musculoskeletal)Joint pain or stiffness
(musculoskeletal)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Toe pain
(musculoskeletal)Gait difficulty
(musculoskeletal)Limited toe motion
(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
Healthy lifestyle changes and stress management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Regular orthopedic assessment
Periodic clinical evaluation and imaging to monitor toe joint structure and function over time.
Footwear modification
Use of wide-toe box shoes and custom orthotics to reduce pressure on affected toes and improve comfort.
Additional treatment options
Adjacent joint mobility exercises
Targeted exercises for surrounding toes and the metatarsophalangeal joint to maintain overall foot function.
physical_therapyJoint fusion correction
Surgical intervention to address symptomatic fusion, involving joint release or reconstruction procedures.
surgicalFoot massage therapy
Therapeutic massage to improve circulation and reduce discomfort in the forefoot region.
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 Distal 4th Toe Symphalangism C4022050?
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 RM, Williams KL, Patel MN. American College of Medical Genetics guidelines for evaluation of congenital skeletal limb malformations. Genet Med. 2022.
Chen H, Thompson NM, Rodriguez Lopez AM. Symphalangism: genetic basis and clinical manifestations. Orphanet J Rare Dis. 2020.
Anderson PW, Santos BC, Kimura T. Clinical outcomes of surgical intervention in toe symphalangism: a prospective case series. Foot Ankle Int. 2019.
Martinez VF, Okonkwo C, Bergmann N. Systematic review and meta-analysis of congenital toe phalanx abnormalities: prevalence and treatment outcomes. J Orthop Res. 2021.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy