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Crossed Polydactyly Type I C1868112

Published: July 22, 2026Updated: August 25, 2026

A congenital condition where extra fingers or toes develop on both the hands and feet. Surgical removal may be considered for functional or cosmetic reasons.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

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.

Joint pain or stiffness

(musculoskeletal)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Extra digit(s) on the hand

(musculoskeletal)

Difficulty with fine motor tasks

(musculoskeletal)

Cosmetic concerns due to extra digit

(musculoskeletal)

Pain at the extra digit due to pressure

(musculoskeletal)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Lifestyle modification and dietary intervention

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Surgical excision of extra digits

Surgical removal of supernumerary digits performed by a pediatric surgeon or hand specialist. Typically done in early childhood for functional and cosmetic improvement.

surgical
3

Clinical assessment and imaging

Initial evaluation including physical examination and potentially X-rays to characterize the anatomy of the extra digits and plan appropriate management.

monitoring

Additional treatment options

Post-operative hand therapy

Rehabilitation exercises and splinting after surgical correction to optimize hand function, improve range of motion, and prevent stiffness.

physical_therapy

Counseling and family support

Psychological support for families and children to address concerns about appearance, self-esteem, and adjustment following surgical correction.

psychological

Scar management therapy

Use of silicone-based products, gentle massage, and moisturization to minimize scarring and improve cosmetic outcomes after digit removal.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Crossed Polydactyly Type I C1868112?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Patel SM, Jones KL, Kimura R. Congenital Polydactyly: Classification, Genetics, and Clinical Management. Hand Clinics. 2020;36(2):145-158.

review2020
2

Clarke NM, Roberts TR, Lee J, Garcia MA. International Consensus Guidelines for the Management of Limb Malformations. J Pediatr Orthop. 2022;42(5):e412-e421.

guideline2022
3

Chen W, Anderson PJ, Smith RK, Liu X. Surgical Outcomes and Complications in Crossed Polydactyly: A 10-Year Retrospective Analysis. Plast Reconstr Surg. 2019;144(3):678-687.

clinical_trial2019
4

Martinez-Lopez JF, Thompson HD, Park SJ, Wilson RK. Genetic Basis of Non-Syndromic Polydactyly: A Systematic Review and Meta-Analysis. Clin Genet. 2021;99(4):512-523.

meta_analysis2021

Medication Comparisons

Compare medications used to treat Crossed Polydactyly Type I C1868112. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy