Acne (L70)

ICD-10 code L70 covers various types of acne, a common skin condition characterized by inflamed or clogged hair follicles. These codes help specifically identify the form of acne for accurate medical classification and treatment documentation.

This section includes L70.0 Acne vulgaris, known by terms like juvenile acne, cystic acne, and comedonal acne, describing typical inflammatory acne on the face. L70.1 Acne conglobata refers to a severe form featuring nodules and cysts, also called nodulocystic acne or acne fulminans. L70.2 Acne varioliformis is associated with scalp folliculitis and bacterial infections. Tropical or hydration-related acne is classified under L70.3 Acne tropica. L70.4 Infantile acne codes acne appearing in infants, sometimes called neonatal acne. L70.5 Acne excoriee identifies acne worsened by scratching or picking. Other specialized forms like occupational or steroid-induced acne fall under L70.8 Other acne. When no specific type is determined, L70.9 Acne, unspecified is used. Familiarity with these synonyms and distinctions ensures precise coding for conditions ranging from simple comedones to complex cystic acne.

Instructional Notations

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Acne Conglobata

Severe and chronic form of acne characterized by large, burrowing abscesses associated with disfigurement.

Acne Vulgaris

A chronic disorder of the pilosebaceous apparatus associated with an increase in sebum secretion. It is characterized by open comedones (blackheads), closed comedones (whiteheads), and pustular nodules. The cause is unknown, but heredity and age are predisposing factors.