ICD-10-CM > S00-T88 > T36-T50 > T38 > T38.9 > T38.99 T38.99 Poisoning by, adverse effect of and underdosing of other hormone antagonists Non-Billable/Non-Specific Codes T38.991Poisoning by other hormone antagonists, accidental (unintentional)T38.991A..., initial encounterT38.991D..., subsequent encounterT38.991S..., sequelaT38.992Poisoning by other hormone antagonists, intentional self-harmT38.992A..., initial encounterT38.992D..., subsequent encounterT38.992S..., sequelaT38.993Poisoning by other hormone antagonists, assaultT38.993A..., initial encounterT38.993D..., subsequent encounterT38.993S..., sequelaT38.994Poisoning by other hormone antagonists, undeterminedT38.994A..., initial encounterT38.994D..., subsequent encounterT38.994S..., sequelaT38.995Adverse effect of other hormone antagonistsT38.995A..., initial encounterT38.995D..., subsequent encounterT38.995S..., sequelaT38.996Underdosing of other hormone antagonistsT38.996A..., initial encounterT38.996D..., subsequent encounterT38.996S..., sequela