A unilateral cleft lip, commonly occurring on the left side, is more common than a bilateral cleft lip.
Unilateral cleft lip results from failure of the maxillary prominence on the affected side to fuse with medial nasal prominences. The result is called a persistent labial groove.
Cleft lip occurs in approximately 1 in 1,000 live births worldwide. The prevalence can vary by region and ethnicity. It is one of the most common birth defects, with the exact prevalence depending on genetic and environmental factors.
Cleft lip occurs more often in males, while cleft palate is more likely to occur in females. Cleft lip alone occurs in about 20% of cases, both genders. 80%--have both cleft lip and cleft palate.
As well as unilateral or bilateral, cleft lips are further classified as complete or incomplete. A complete cleft is the entire lip, and usually the alveolar arch. An incomplete cleft involves only part of the lip.
African Americans and Africans represent the lowest incidence of cleft lip deformity (approximately one in 1,500 births).
ICD-9-CM diagnosis code 749.21 = Cleft palate with cleft lip; unilateral, complete
When the affected child has unilateral cleft lip and palate, the risk for subsequent children increases to 4.2%.
This classification divides cleft lip into unilateral or bilateral (right, left or extent) in thirds--(i.e., one-third, two-thirds, three-thirds), or median cleft lip, the extent of which is also measured in thirds.
Similar to unilateral cleft lip formation, with varying degrees of deformity on each side of the defect. An anatomical structure (intermaxillary segment) projects to the front and hangs unattached.
The CPT Code fro palstic repair fo a bilateral cleft lip, primary bilateral in one stage is 40701. For unilateral without a stage, the CPT Code is 40700.
A "cleft lip" affects just the patient's lip, and a "cleft palate" affects the palate, or the roof of your mouth.
No, Princess didn't have a cleft lip.