ICD-10 Code L12.9 – Pemphigoid, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L12.9 – Pemphigoid, unspecified
What it is
L12.9 identifies pemphigoid when the specific subtype is not documented. Use it for an autoimmune blistering disorder affecting the skin and sometimes mucous membranes, when records do not name a more specific pemphigoid type.
Clinical signs
Typical findings include tense blisters, itching, and inflamed skin; mucosal involvement may occur in some cases. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician documents pemphigoid but does not specify the subtype. It also fits when notes confirm a pemphigoid disorder, yet the chart lacks enough detail to assign a more specific code. Verify the record before coding.
Do not use for
Do not use L12.9 if the documentation identifies a specific pemphigoid subtype that has its own code. Do not use it for other blistering diseases or for pemphigus.
Coding tip
Check the assessment and pathology notes for a named subtype before defaulting to unspecified.