Corrosion of second degree of left toe(s) (nail), sequela

This code signifies a second-degree chemical burn, also known as corrosion, affecting one or more toes on the patient's left foot, including the toenail if involved. A second-degree burn is characterized by blistering, partial-thickness skin damage, and significant pain. The "sequela" designation indicates that this code is used for complications or conditions arising directly from the initial corrosion, after the acute phase of the injury has passed.

This code is appropriate for documenting long-term effects or complications stemming from a second-degree chemical burn to the left toe(s). Examples include chronic pain, scarring, nail deformity, or persistent sensitivity that are directly attributable to the original corrosive injury. It should be used when the patient is seen for follow-up care related to these lasting issues, not for the initial acute injury.

• Always assign an external cause code (V00-Y99) in conjunction with this code to describe the circumstances of the corrosion.
• Ensure documentation clearly specifies "sequela" and not an acute injury, as different codes apply to the initial encounter.
• Verify the laterality (left toe) and degree of burn (second-degree/corrosion) are explicitly stated in the medical record.