Corrosion of first degree of chest wall, sequela

This code signifies a first-degree burn (corrosion) affecting the chest wall, where the acute injury has healed and the patient is now presenting for treatment of a residual condition or complication directly resulting from that past burn. First-degree burns involve only the epidermis, causing redness and pain without blistering. The "sequela" indicates that the current encounter addresses a long-term effect of this superficial chest wall burn.

Use this code when documenting a patient encounter for a residual condition, such as scar tissue, altered sensation, or chronic pain, that is a direct consequence of a previously sustained first-degree corrosion to the chest wall. This applies when the initial burn has fully healed and the focus of the current visit is on managing these lasting effects. Do not use for the initial treatment of the acute burn.

• Always assign an additional code to specify the nature of the sequela (e.g., scar, chronic pain).
• Ensure documentation clearly links the current condition to the past first-degree chest wall corrosion.
• The "S" in the seventh character indicates sequela and should be used for complications or conditions arising after the acute phase of the injury has terminated.