Tox eff of fluorine gas and hydrogen fluoride, slf-hrm, subs

This code signifies a patient presenting for follow-up care or rehabilitation due to the harmful effects of exposure to fluorine gas or hydrogen fluoride, where the exposure was deliberately self-inflicted. The toxic effects can range from respiratory distress and chemical burns to systemic organ damage, depending on the concentration and duration of exposure.

This code is appropriate for documenting subsequent encounters for patients who are recovering from a suicide attempt or intentional self-harm involving fluorine gas or hydrogen fluoride. This includes visits for ongoing treatment of lung damage, skin lesions, or other complications arising from the initial toxic exposure. It would not be used for the initial acute care encounter.

• Ensure documentation clearly states the intent of self-harm and that this is a subsequent encounter.
• Always code the specific toxic effect(s) (e.g., chemical pneumonitis, dermatitis) in addition to this external cause code.
• Consider additional codes for psychiatric conditions (e.g., depression, suicidal ideation) if documented.