Sunburn of second degree

This code signifies a sunburn characterized by blistering, significant pain, and potential swelling, indicating damage beyond the superficial epidermal layer. It involves the epidermis and part of the dermis, but not the full thickness of the skin.

Apply this code when documentation explicitly states a "second-degree sunburn" or describes a sunburn with blistering. This diagnosis is typically made upon visual inspection and patient history of sun exposure.

• Ensure documentation clearly differentiates from first-degree (erythema only) or third-degree (full-thickness skin destruction) burns.
• Do not use for chemical or thermal burns; these have different ICD-10-CM categories.
• Consider an external cause code (e.g., X32.- Exposure to sunlight) to provide additional context, if applicable.