Other phakomatoses, not elsewhere classified
ICD-10 Q85.89 is a billable code used to indicate a diagnosis of other phakomatoses, not elsewhere classified.
Phakomatoses are a group of congenital disorders characterized by the presence of skin lesions and other systemic manifestations. The term 'other phakomatoses, not elsewhere classified' encompasses a variety of congenital malformations that do not fit neatly into established categories. These may include rare skin conditions such as nevus sebaceous, which can lead to secondary complications like basal cell carcinoma, or other congenital skin anomalies like epidermal nevi. Additionally, congenital malformations of the breast, such as Poland syndrome, where there is an absence of pectoral muscle and associated breast tissue, may also be classified under this code. Other rare malformations can include congenital adrenal hyperplasia, which affects adrenal gland function, and splenic anomalies like asplenia or polysplenia. Accurate coding requires a thorough understanding of the specific manifestations and associated conditions, as these can significantly impact patient management and treatment outcomes.
Pediatric documentation must include growth and developmental assessments, detailed descriptions of skin lesions, and any associated systemic findings.
Common scenarios include evaluation of a child with multiple congenital skin lesions or a newborn presenting with ambiguous genitalia due to adrenal anomalies.
Coders should be aware of the age-specific manifestations of congenital conditions and the need for ongoing monitoring and follow-up.
Genetic documentation should include family history, results of genetic testing, and any syndromic associations with congenital malformations.
Scenarios may involve genetic counseling for families with a history of congenital anomalies or syndromes.
Consideration of genetic syndromes that may present with overlapping features is crucial for accurate coding.
Used for follow-up visits in patients with congenital conditions.
Documentation must include history, examination, and medical decision-making.
Pediatricians should ensure developmental assessments are included.
Q85.89 includes a variety of congenital skin lesions and other rare malformations that do not fit into more specific categories, such as nevus sebaceous and Poland syndrome.
