T44.7X2 - Poisoning by beta-adrenoreceptor antagonists, intentional self-harm T44.7 - Poisoning by, adverse effect of and underdosing of beta-adrenoreceptor antagonists T44.7X - Poisoning by, adverse effect of and underdosing of beta-adrenoreceptor antagonists T44.7X2 - Poisoning by beta-adrenoreceptor antagonists, intentional self-harm