Clavicular Hypoplasia Zygomatic Arch Hypoplasia And Micrognathia C1857942
A rare congenital condition affecting development of the collarbone, cheekbone, and jaw. Surgical reconstruction may help improve function and appearance.
Key facts at a glance
- ICD-10
- Q89.9
- ICD-11
- LA00.0
- Body system
- congenital
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(congenital)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
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
Craniofacial Reconstruction
Multistage surgical reconstruction addresses skeletal hypoplasia involving the clavicle, zygomatic arch, and mandible. Procedures aim to restore facial symmetry, improve function, and address airway concerns in severe micrognathia.
Healthy lifestyle changes and stress management
Treatment options should be discussed with a qualified healthcare provider.
Mandibular Distraction Osteogenesis
For significant micrognathia causing airway obstruction or feeding difficulties, gradual mandibular lengthening using distraction devices can increase airway space and improve facial proportions over several months.
Additional treatment options
Tracheostomy for Airway Management
In severe cases with significant airway compromise from micrognathia, temporary or permanent tracheostomy may be necessary to secure the airway. This is often considered when other interventions are insufficient or while awaiting definitive reconstruction.
procedurePsychological Support and Counseling
Comprehensive psychological support addresses the emotional and social challenges associated with craniofacial differences. Counseling helps patients develop coping strategies, build self-esteem, and navigate social interactions.
psychologicalNutritional Support and Feeding Therapy
Infants with micrognathia often require specialized feeding approaches including modified bottles, positioning techniques, or temporary nasogastric feeds. Early intervention ensures adequate nutrition for growth and development.
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 Clavicular Hypoplasia Zygomatic Arch Hypoplasia And Micrognathia C1857942?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy