Keratosis punctata (palmaris et plantaris)

This code represents a rare, inherited skin disorder characterized by small, hyperkeratotic papules or pits primarily affecting the palms of the hands and soles of the feet. These lesions are typically discrete, firm, and can be painful or asymptomatic. The condition often presents in adolescence or early adulthood and can vary in severity.

Assign this code when documentation clearly indicates a diagnosis of keratosis punctata, specifically involving the palms and/or soles. This diagnosis is typically made clinically based on the characteristic appearance and distribution of the lesions. Supporting documentation would include physician notes detailing the location, morphology, and onset of the hyperkeratotic papules.

• Ensure the documentation specifies "punctata" to differentiate from other forms of keratosis affecting palms/soles.
• Do not confuse with other localized hyperkeratotic conditions like corns or calluses, which have different etiologies and code assignments.
• Review for any associated systemic conditions or genetic syndromes that may require additional coding.