ICD-10 Code A46 – Erysipelas (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A46 – Erysipelas
What it is
A46 identifies erysipelas, a superficial bacterial skin infection with a sharply defined area of redness and swelling. It usually affects the face or legs and involves the upper dermis and superficial lymphatics.
Clinical signs
Typical findings include sudden onset of bright red, tender, warm, raised skin with clear borders. Fever, chills, and regional lymph node enlargement may occur; clinical features vary, refer to documentation.
When to use this code
Use A46 when the record documents erysipelas by name or clearly describes a clinician-diagnosed superficial streptococcal skin infection. Apply it for confirmed cases affecting the face, leg, or another site when the provider identifies erysipelas.
Do not assign it for nonspecific cellulitis, abscess, or dermatitis unless the documentation specifically supports erysipelas. If the site or organism is unclear, check documentation before coding.
Do not use for
Do not use A46 for cellulitis, skin abscess, or other non-erysipelas soft tissue infections. Do not assume erysipelas from redness alone; check documentation.
Coding tip
Code A46 only when the provider documents erysipelas explicitly or describes a classic presentation that is clearly diagnosed as such.