Corrosion of unsp degree of unspecified forearm, sequela

This code indicates a long-term complication or residual effect resulting from a chemical burn (corrosion) to an unspecified area of the forearm. The original burn's severity is not specified, and the patient is now presenting for treatment of a sequela, such as scarring, contracture, or chronic pain, rather than the acute injury.

Use this code when documenting a patient encounter for the management of a chronic condition or late effect directly attributable to a past chemical burn of the forearm. This applies when the initial acute injury has healed, and the patient is being treated for a persistent problem caused by that burn.

• Always assign an external cause code (V00-Y99) to describe the circumstances of the original corrosion.
• This "S" seventh character indicates a sequela and should be used for complications or conditions arising as a direct result of the original injury, treated at any time after the acute phase.
• Do not use this code for acute chemical burns; instead, refer to codes within T22.0-T22.3 for initial encounters of acute corrosion.