2025 ICD-10-CM code Q84.2
This code represents other congenital malformations of hair, including congenital hypertrichosis and persistent lanugo.
Medical necessity for interventions related to Q84.2 depends on the specific condition. For cosmetic concerns (e.g., excessive hair growth), documentation should support the impact on the patient's quality of life. For conditions affecting hair structure or growth, medical necessity may be established based on the potential for complications or associated health issues.
Diagnosis and management typically fall under dermatology, pediatrics, or genetics specialists, depending on the specific condition and patient age.
- 7 (Congenital malformations, deformations and chromosomal abnormalities)
- Q80-Q89 (Other congenital malformations)
In simple words: This code signifies a birth defect affecting hair, such as excessive hair growth or unusually persistent downy hair.
This code encompasses various congenital hair abnormalities not classified elsewhere, such as excessive hair growth (hypertrichosis) present at birth, and the persistence of lanugo (fine, downy hair) beyond the newborn period. It also includes other unspecified congenital malformations of hair.
Example 1: A newborn infant presents with excessive hair growth over their body, diagnosed as congenital hypertrichosis., A 2-month-old baby still exhibits lanugo, which normally disappears shortly after birth. This persistent lanugo requires further assessment., A child is born with unusually brittle or sparse hair due to a congenital hair shaft abnormality.
Thorough clinical documentation of the hair abnormality, including its location, extent, and any associated features, is essential. Family history of similar conditions should be noted.Microscopic hair examination or skin biopsy may be necessary to confirm the diagnosis.
** Conditions coded as Q84.2 are present from birth, even if not immediately apparent. These conditions can range from benign cosmetic issues to more significant medical concerns. Accurate diagnosis and appropriate management are important for optimal patient care.
- Specialties:Dermatology, Pediatrics, Medical Genetics
- Place of Service:Office, Inpatient Hospital, Outpatient Hospital