Toxic effect of unspecified metal, undetermined, subs encntr

This code describes the toxic effects resulting from exposure to an unknown metal, where the intent of the exposure (e.g., accidental, intentional self-harm) cannot be determined. It signifies that the patient is receiving follow-up care for these toxic effects after the initial treatment phase.

Use this code for patients presenting for ongoing management of symptoms or complications from a metal poisoning when the specific metal involved is not identified and the circumstances of the exposure are unclear. This applies to encounters after the initial diagnosis and treatment.

• Requires an additional code to specify the manifestations of the toxic effect.
• Only use for subsequent encounters; an initial encounter would use the "A" seventh character.
• Ensure documentation clearly states "unspecified metal" and "undetermined intent" to support this code.