ICD-10 Code L71.0 – Perioral dermatitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L71.0 – Perioral dermatitis
What it is
L71.0 identifies perioral dermatitis, an inflammatory facial rash that usually appears around the mouth. It may also involve the nose or eyes, and you should code it when the documentation names this diagnosis.
Clinical signs
Typical findings include small papules or papulopustules with redness and scaling around the mouth. The vermilion border is often spared; clinical features vary, so refer to documentation if the description is incomplete.
When to use this code
Use L71.0 when the provider documents perioral dermatitis, periorificial dermatitis, or a similar equivalent diagnosis. It is appropriate for outpatient and inpatient records when the facial eruption is identified as this specific condition. If the note only says “rash,” check documentation.
Do not use for
Do not use L71.0 for acne, rosacea without perioral dermatitis, or nonspecific dermatitis. If the chart describes another facial rash without this diagnosis, select the documented condition instead.
Coding tip
Code the condition only when the provider clearly links the facial eruption to perioral dermatitis.