Hidradenitis suppurativa

This code identifies a chronic inflammatory skin condition characterized by recurrent abscesses, nodules, and sinus tracts, primarily affecting apocrine gland-bearing areas such as the axillae, groin, and anogenital region. It results from follicular occlusion and subsequent inflammation and infection of hair follicles.

Assign this code when documentation clearly indicates a diagnosis of hidradenitis suppurativa, also known as acne inversa. This includes initial diagnoses, exacerbations, or ongoing management of the condition. Supporting documentation should detail the characteristic lesions and affected anatomical sites.

• Do not confuse with other forms of acne (e.g., acne vulgaris) or simple furuncles/carbuncles.
• Specificity regarding the affected anatomical sites (e.g., axilla, groin) should be noted in the documentation, though there are no specific subcodes for site.
• Consider sequencing with codes for associated complications, such as cellulitis or abscess, if present and treated.