Poisn by histamine H2-receptor blockers, self-harm, sequela

This code signifies a long-term consequence or complication arising from a deliberate overdose of histamine H2-receptor blockers, such as cimetidine or ranitidine, with the intent to cause self-harm. These sequelae are the residual effects that persist after the acute phase of the poisoning has resolved.

Use this code when documenting chronic conditions, organ damage, or psychological sequelae directly attributable to a past intentional self-poisoning with H2-receptor blockers. This applies to follow-up encounters where the patient is being treated for these lasting effects, not the acute poisoning event itself.

• Always assign this code as a secondary diagnosis, following the code for the specific sequela (e.g., chronic kidney disease, liver damage).
• Ensure documentation clearly links the current condition to the past intentional H2-receptor blocker poisoning.
• The "S" in the 7th character indicates sequela; do not use for acute poisoning.