Corrosion of second degree of forehead and cheek, sequela

This code signifies a second-degree chemical burn (corrosion) affecting the forehead and cheek, where the acute injury has healed but residual effects or complications persist. These sequelae could include scarring, pigment changes, contractures, or chronic pain resulting from the original corrosive exposure.

Use this code when documenting the long-term consequences or late effects of a second-degree chemical burn to the forehead and cheek. This applies to follow-up encounters where the primary focus is managing or evaluating these persistent issues, rather than the initial acute injury.

• An external cause code (V00-Y99) should be used in conjunction with this code to identify the circumstances of the corrosion.
• Ensure the documentation clearly specifies "sequela" or "late effect" and the specific body sites (forehead and cheek).
• Do not use this code for acute or active second-degree corrosive injuries; those require codes from the T20.2-T20.3 series.