Ichthyosis vulgaris

This code represents ichthyosis vulgaris, a common, inherited skin disorder characterized by dry, scaly skin. It results from a genetic defect in the filaggrin protein, leading to impaired skin barrier function and increased transepidermal water loss. The scales are typically fine, white, or light brown, and most prominent on the extensor surfaces of the extremities and the trunk.

Use this code for patients diagnosed with ichthyosis vulgaris, whether congenital or acquired. Documentation should clearly state the diagnosis of ichthyosis vulgaris, often noting the characteristic fine, fish-like scales and dry skin. This code is appropriate for initial diagnoses, follow-up visits, and management of the condition.

• Differentiate from other forms of ichthyosis; this code is specific to the vulgaris type.
• Ensure documentation specifies "vulgaris" to support this precise code assignment.
• Consider additional codes for associated conditions such as atopic dermatitis or keratosis pilaris, if present and documented.