Corrosion of third degree of right forearm, sequela

This code signifies a third-degree chemical burn (corrosion) affecting the right forearm, where the acute injury has healed, but residual effects or complications persist. These sequelae can include scarring, contractures, chronic pain, or functional limitations resulting from the original severe chemical exposure.

Apply this code when documenting a patient presenting with long-term complications or residual conditions directly attributable to a third-degree chemical burn of the right forearm that occurred in the past. This is appropriate for follow-up care, reconstructive procedures, or management of chronic issues related to the original injury.

• Always use in conjunction with an external cause code (V00-Y99) to describe the circumstances of the original corrosion, if known and relevant to the current encounter.
• Do not use for acute or subacute corrosion; the "S" seventh character indicates sequela.
• Specify laterality (right forearm) accurately based on documentation.