ICD-10 Code L12 – Pemphigoid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L12 – Pemphigoid
What it is
L12 identifies pemphigoid, a group of autoimmune blistering skin disorders. It is used when documentation supports a pemphigoid diagnosis rather than a more specific subtype.
Clinical signs
Typical findings include tense blisters, itching, and inflamed skin, often with involvement of the trunk or limbs. Clinical features vary; refer to documentation.
When to use this code
Use L12 when the provider documents pemphigoid without naming a more specific codeable subtype. It may also fit cases described as bullous pemphigoid when the record supports the broader category. Check documentation if the note names another blistering disorder or gives an alternate diagnosis.
Do not use for
Do not use L12 for other bullous dermatoses, pemphigus, or non-autoimmune blistering conditions. If the chart is unclear, check documentation.
Coding tip
Code the most specific pemphigoid diagnosis documented, and verify whether the record supports a broader L12 category or a more specific subcode.