Toxic effect of unspecified metal, undetermined, init encntr

This code signifies a harmful reaction to an unknown metallic substance where the intent (e.g., accidental, intentional self-harm, assault) cannot be determined. The patient is presenting for the initial treatment of this toxic effect.

This code is appropriate for cases where a patient exhibits symptoms of metal poisoning, but the specific metal involved has not yet been identified through laboratory testing or patient history. It is also used when the circumstances surrounding the exposure are unclear or undocumented.

• Only use this code for the initial encounter for treatment of the toxic effect.
• Avoid using this code if the specific metal or intent is known; instead, use a more specific code from categories T56 or T57.
• Always sequence this code first, followed by codes for any associated signs, symptoms, or manifestations of the toxic effect.