Toxic eff of carb monx from mtr veh exhaust, slf-hrm, sqla

This code signifies the lasting health problems or complications that arise from a deliberate act of self-poisoning with carbon monoxide originating from motor vehicle exhaust. These sequelae are chronic or residual conditions that persist after the initial acute toxic event has resolved.

Apply this code when documenting conditions such as persistent neurological deficits, chronic respiratory issues, or cardiac damage that are directly attributable to a past intentional self-harm attempt involving carbon monoxide poisoning from vehicle exhaust. This code is used for the long-term effects, not the initial acute poisoning.

• Always sequence this sequela code after the code for the specific residual condition being treated.
• Ensure documentation clearly links the current condition to a past intentional carbon monoxide poisoning event from motor vehicle exhaust.
• Verify that the "S" seventh character is appropriate, indicating a sequela, rather than an initial encounter or subsequent encounter for the acute poisoning.