ICD-10 Code A20.1 – Cellulocutaneous plague (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A20.1 – Cellulocutaneous plague
What it is
A20.1 identifies cellulocutaneous plague, a form of plague infection that involves the skin and nearby soft tissue. Use it when documentation specifically names this presentation.
Clinical signs
Clinical features vary; refer to documentation. Standard references describe painful skin lesions with local inflammation, which may occur with regional lymph node involvement in plague.
When to use this code
Use A20.1 when the provider documents cellulocutaneous plague, including plague infection centered in the skin or soft tissues. Code it when the diagnosis is confirmed or clearly stated in the record. If the note only says plague without a specific form, check documentation.
Do not use for
Do not use this code for other plague forms, such as bubonic, pneumonic, or septicemic plague, unless cellulocutaneous plague is documented. Do not assume the site or type; check documentation.
Coding tip
Assign A20.1 only when the record names cellulocutaneous plague or clearly supports that specific form.