Toxic effect of phosphorus and its compnd, self-harm, subs

This code signifies a toxic reaction resulting from intentional self-poisoning with phosphorus or its compounds. It specifically indicates that the patient is receiving follow-up care for this poisoning event, not the initial treatment. The poisoning was a deliberate act to cause self-harm.

Apply this code when documenting subsequent encounters for a patient who previously presented with an acute phosphorus poisoning due to intentional self-harm. This includes follow-up appointments for ongoing management of organ damage, psychological evaluation, or monitoring for delayed complications. It is appropriate for any encounter after the initial acute treatment phase.

• Ensure the documentation clearly states "intentional self-harm" as the intent of the poisoning.
• Verify that the encounter is for follow-up care, not the initial acute treatment.
• Always sequence this code after the primary diagnosis for the specific manifestation of the phosphorus toxicity (e.g., acute kidney injury, liver failure).