Newborn affected by maternal noxious substance, unspecified

This code signifies a newborn exhibiting health effects due to exposure to an unspecified harmful substance from the mother during pregnancy or delivery. It indicates that the specific noxious substance responsible for the newborn's condition is not documented or precisely identified.

Apply this code when a newborn presents with signs or symptoms attributable to maternal substance exposure, but the exact substance (e.g., drug, alcohol, chemical) is unknown or not specified in the medical record. Documentation should clearly link the newborn's condition to maternal exposure without identifying the specific agent.

• Avoid using this code if the specific maternal noxious substance is known; instead, use a more specific P04 subcategory.
• Always sequence this code as a secondary diagnosis, following the code for the newborn's specific condition or manifestation.
• Query the provider if the documentation indicates maternal substance use but does not specify the substance, to determine if a more precise code can be assigned.