Corrosion of third degree of left lower leg, subs encntr

This code signifies a severe chemical burn affecting the full thickness of the skin and underlying tissues on the patient's left lower leg. The injury has progressed beyond the initial treatment phase, and the patient is now receiving follow-up care for this corrosion.

Apply this code when documenting ongoing management, such as wound care, debridement, skin grafting, or monitoring for complications, for a third-degree chemical burn to the left lower leg. This is appropriate for subsequent hospital visits, outpatient clinic appointments, or rehabilitation encounters after the initial acute treatment.

• Ensure the documentation clearly specifies "corrosion" (chemical burn) rather than a thermal burn.
• Verify the laterality (left) and anatomical site (lower leg) are precisely documented.
• The "D" seventh character indicates a subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.