Contact with dry ice, sequela

This code indicates a health condition or complication arising from a past exposure to dry ice. These sequelae are long-term effects that manifest after the initial acute injury has resolved, such as chronic pain, scarring, or nerve damage from frostbite. It signifies that the dry ice exposure is no longer an active event but rather the underlying cause of the current problem.

Use this code when documenting a patient presenting with a chronic condition directly attributable to a previous contact with dry ice. This applies to situations where the initial injury has healed, but residual symptoms or permanent damage persist. Examples include a patient with persistent neuropathy years after a dry ice burn, or chronic skin changes from a past exposure.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., chronic pain, scar).
• Ensure documentation clearly links the current condition to the prior dry ice exposure.
• Do not use this code for acute dry ice injuries; refer to the acute injury codes in the W93.01- series for those instances.