Corrosion of first degree of right upper arm, sequela

This code signifies a first-degree corrosion (chemical burn) affecting the right upper arm, where the acute injury has healed but is still causing a lasting effect or complication. First-degree corrosions typically involve only the epidermis, presenting with redness, mild swelling, and pain without blistering. The "sequela" indicates that the current encounter is for a complication or late effect directly resulting from this past chemical burn.

Use this code when documenting a patient encounter for a residual condition or complication (e.g., scar tissue, chronic pain, altered sensation) in the right upper arm that is a direct consequence of a previously sustained first-degree chemical burn. This code is appropriate when the initial acute injury has resolved, and the patient is being treated for the long-term impact.

• Always ensure the documentation clearly links the current condition as a sequela of a past first-degree corrosion.
• Do not use this code for the initial acute treatment of the chemical burn; instead, use the appropriate acute corrosion code.
• Consider additional codes for specific sequelae (e.g., scar, chronic pain) if documented, in addition to this sequela code.