Corrosion of second degree of lower back, initial encounter

This code signifies a partial-thickness skin injury to the lower back caused by a corrosive chemical agent, affecting the epidermis and dermis. The injury presents with blistering, severe pain, and often a red or mottled appearance, but does not involve full-thickness skin destruction.

Apply this code for patients presenting with a second-degree chemical burn specifically located on the lower back. This is appropriate for the initial treatment of such an injury, including emergency department visits or the first encounter with a healthcare provider for this specific burn.

• Ensure the documentation clearly specifies a chemical cause and not a thermal burn.
• Verify the burn depth is explicitly stated or clearly implied as second-degree.
• Confirm the anatomical site is precisely the lower back; use more specific codes for other back regions.