Oth acute reaction to foreign sub acc left dur proc, init

This code signifies an acute inflammatory or adverse reaction to a foreign substance that was unintentionally retained within the body following a medical procedure. This reaction is not due to infection but rather the body's immediate response to the presence of the foreign material.

Use this code when documenting a patient presenting with an acute, non-infectious reaction (e.g., pain, swelling, localized inflammation) to a surgical sponge, instrument fragment, or other foreign object inadvertently left inside the body during a previous surgery or invasive procedure. This applies to the initial encounter for this specific complication.

• Ensure the documentation clearly states the reaction is acute and not infectious.
• Verify the foreign substance was "accidentally left" and not intentionally implanted.
• Confirm this is the first time the patient is being seen or treated for this particular complication.