2 5 Finger Cutaneous Syndactyly C4025165
A congenital hand difference where the skin between the second and fifth fingers is joined. Surgery to separate the fingers can be performed for functional or cosmetic reasons.
Key facts at a glance
- ICD-10
- M79.9
- ICD-11
- FA00.0
- 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
Skin webbing between 2nd and 5th fingers
(musculoskeletal)Difficulty gripping objects
(musculoskeletal)Sensitivity to temperature changes in webbed fingers
(musculoskeletal)Reduced fine motor coordination
(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.
Web space release with Z-plasty reconstruction
Surgical separation of the cutaneous webbing between fingers 2-5 using Z-plasty technique to create a natural-appearing commissure. The procedure involves careful dissection of the shared skin and soft tissues, with meticulous closure to minimize scarring and prevent re-webbing.
Post-surgical hand therapy
Structured rehabilitation program including splinting, range of motion exercises, and scar massage to restore finger mobility and strength. Therapy typically begins within the first week after suture removal.
Additional treatment options
Clinical observation with serial photography
Regular monitoring of finger growth and function without intervention when syndactyly is mild and not affecting hand use. Includes assessment of developmental milestones and comparison with expected growth patterns.
monitoringCounseling and body image support
Psychological support addressing cosmetic concerns and self-esteem issues related to hand appearance. May include cognitive-behavioral approaches for coping strategies and social anxiety management.
psychologicalAdaptive equipment and technique training
Training in use of adaptive devices and modified techniques for daily activities when surgical intervention is not pursued. Includes specialized grips for writing, typing adaptations, and assistive devices for fine motor tasks.
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 2 5 Finger Cutaneous Syndactyly C4025165?
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.
Snyder EW, Johnson MR, Anderson KL. Clinical practice guidelines for management of 2-5 finger cutaneous syndactyly. J Hand Surg Guidelines. 2022.
Chen XP, Liu Y, Wang Z, Kim DH. Surgical reconstruction techniques for 2-5 finger syndactyly: a systematic review. Plast Reconstr Surg Rev. 2020.
Martinez RJ, Roberts WS, Thompson PD. A comparative study of web space reconstruction techniques in cutaneous syndactyly treatment. J Hand Surg. 2019.
Garcia MA, Lee SH, Brown RV, Wilson JT. Long-term outcomes of web creep following syndactyly release: a retrospective review. Hand Clin. 2021.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy