ICD-10 Code L73.0 – Acne keloid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L73.0 – Acne keloid
What it is
L73.0 identifies acne keloid, a chronic inflammatory condition of the hair follicles that leads to firm, raised scarring, usually on the back of the scalp and nape of the neck.
Clinical signs
Typical findings include papules, pustules, and keloid-like scar tissue with thickened plaques or nodules. Clinical features vary; refer to documentation when the appearance or location is not clearly described.
When to use this code
Use this code when the provider documents acne keloid or acne keloidalis as the diagnosis. It is appropriate for encounters focused on this chronic follicular scarring disorder, including active inflammation or established scar changes. Code it only when the condition is clearly identified in the record.
Do not use for
Do not use this code for ordinary acne vulgaris, keloids unrelated to follicular disease, or nonspecific scalp irritation. Check documentation if the record does not clearly distinguish acne keloid from another scarring disorder.
Coding tip
Assign L73.0 only when the provider names acne keloid specifically; otherwise, document review is needed.