Corrosion of second degree of unspecified forearm, sequela

This code signifies a second-degree chemical burn (corrosion) affecting an unspecified area of the forearm, where the initial injury has healed but is still causing ongoing problems or complications. These sequelae could include scarring, contractures, chronic pain, or functional limitations resulting from the original corrosion.

Use this code when documenting a patient presenting with a long-term consequence or residual condition directly attributable to a second-degree chemical burn of the forearm that occurred in the past. This applies when the acute phase of the injury has passed, and the current encounter addresses the lasting effects.

• Always assign an external cause code (V00-Y99) to describe the circumstances of the corrosion, if known.
• Ensure documentation clearly links the current sequela to the past second-degree corrosion of the forearm.
• Do not use for acute or active second-degree chemical burns; those require codes from the T22.2- range.