Abnormal lead level in blood

This code signifies the presence of an elevated lead concentration in a patient's blood that does not meet the diagnostic criteria for lead poisoning. It indicates an abnormal laboratory finding requiring further investigation or monitoring, often reflecting environmental exposure.

Use this code when laboratory results confirm an elevated blood lead level, but the patient is asymptomatic or does not exhibit the specific signs and symptoms of lead toxicity. Documentation should clearly state "abnormal lead level" or a specific elevated value without a diagnosis of lead poisoning.

• Do not code this with T56.0- (lead poisoning); these conditions are mutually exclusive.
• Ensure documentation specifies an abnormal lead level, not just a screening.
• Sequence this code as a secondary diagnosis if a definitive cause for the elevated lead is identified and coded.