Contact with and (suspected) exposure to lead

This code indicates that a patient has had contact with, or is suspected of having been exposed to, lead. This exposure may be acute or chronic and can occur through various sources such as contaminated water, paint, soil, or occupational hazards. It signifies a potential risk for lead poisoning, even if symptoms are not yet present or confirmed.

Apply this code when a patient presents with a history of potential lead exposure, or when lead exposure is suspected based on environmental factors, patient history, or screening results. This is appropriate for situations where lead levels are being monitored, or when a patient is being evaluated for possible lead toxicity, prior to a definitive diagnosis of lead poisoning.

• Use this code as a primary or secondary diagnosis when lead exposure is the reason for the encounter or a significant co-morbidity.
• Do not use this code if a definitive diagnosis of lead poisoning (e.g., elevated blood lead levels requiring treatment, or symptomatic lead toxicity) has already been established; instead, code the specific lead poisoning condition.
• Consider adding an external cause code (e.g., from category X49 for accidental poisoning by and exposure to other and unspecified chemicals and noxious substances) to provide more detail about the circumstances of exposure, if known.