Poisn by oth agents prim act on the resp sys, slf-hrm, subs

This code signifies a poisoning event resulting from the deliberate self-administration of an unspecified substance that primarily affects the respiratory system. The patient is in the recovery phase, receiving follow-up care, or experiencing residual effects from the initial poisoning.

Apply this code for subsequent encounters related to a patient who intentionally poisoned themselves with an agent primarily impacting their breathing, and the specific substance is not documented. This includes follow-up appointments for ongoing respiratory issues, mental health evaluations, or management of complications arising from the self-harm attempt.

• Ensure documentation clearly states "intentional self-harm" and that the encounter is not the initial treatment for the poisoning.
• If the specific agent is known, a more precise T-code from the T48 category should be used.
• Always code any associated mental health diagnoses, such as depression or suicidal ideation, as additional diagnoses.