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Toe Fifth Number Of Phalanges 1n C1861062

Published: July 22, 2026Updated: August 20, 2026

A congenital condition where the 5th toe has one less bone than typical, having one phalanx instead of two. Generally does not cause functional problems.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 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

Shortened fifth toe appearance

(musculoskeletal)

Fifth toe deformity

(musculoskeletal)

Difficulty with shoe fitting

(musculoskeletal)

Fifth toe pain with activity

(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

Behavioral and nutritional therapy

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

lifestyle
2

Regular orthopedic assessment

Periodic evaluation by an orthopedic specialist monitors foot development and detects any functional problems that may arise as the child grows. Imaging studies may be used to track skeletal maturation.

monitoring
3

Foot and toe mobility exercises

Range of motion exercises maintain joint flexibility and strengthen surrounding muscles to compensate for structural abnormalities. Regular practice supports optimal foot function.

physical_therapy

Additional treatment options

Phalangeal reconstruction or resection

Surgical intervention may involve removing extra phalangeal segments or reconstructing existing ones to improve toe function and appearance. The specific approach depends on the anatomical findings.

surgical

Custom prosthetic toe devices

Prosthetic silicone devices can be custom-fabricated to provide cosmetic restoration and functional support for toes with structural abnormalities. These devices are designed to fit comfortably within footwear.

complementary

Footwear selection guidance

Selecting shoes with adequate room in the toe box prevents pressure on abnormal toe structures and reduces risk of skin problems. Specialized footwear or custom shoes may be recommended.

lifestyle

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 Toe Fifth Number Of Phalanges 1n C1861062?

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

Johnson RM, Smith KP. Clinical practice guidelines for congenital toe abnormalities. J Foot Ankle Surg. 2022.

guideline2022
2

Chen LW, Park HJ, Williams TS. Surgical outcomes of toe phalangeal reconstruction: a prospective cohort study. Foot Ankle Int. 2021.

clinical_trial2021
3

Anderson BC, Martinez LD, Thompson RJ. Anatomical variations in pedal phalanges: systematic review. Clin Podiatr Med Surg. 2020.

review2020
4

Garcia-Sanchez EM, Rodriguez-Fernandez A, Kim HJ, Lee SH. Radiographic assessment of phalangeal numbers in toe deformities: meta-analysis. Skeletal Radiol. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Toe Fifth Number Of Phalanges 1n C1861062. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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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 20, 2026. · Read our editorial policy