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ICD-10-CM · FY 2026 APRIL UPDATE

T47.0

Poisoning by, adverse effect of and underdosing of histamine H2-receptor blockers

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
T47.0XPoisoning by, adverse effect of and underdosing of histamine H2-receptor blockersCategory
T47.0X1Poisoning by histamine H2-receptor blockers, accidental (unintentional)Category
T47.0X1APoisoning by histamine H2-receptor blockers, accidental (unintentional), initial encounterBillable
T47.0X1DPoisoning by histamine H2-receptor blockers, accidental (unintentional), subsequent encounterBillable
T47.0X1SPoisoning by histamine H2-receptor blockers, accidental (unintentional), sequelaBillable
T47.0X2Poisoning by histamine H2-receptor blockers, intentional self-harmCategory
T47.0X2APoisoning by histamine H2-receptor blockers, intentional self-harm, initial encounterBillable
T47.0X2DPoisoning by histamine H2-receptor blockers, intentional self-harm, subsequent encounterBillable
T47.0X2SPoisoning by histamine H2-receptor blockers, intentional self-harm, sequelaBillable
T47.0X3Poisoning by histamine H2-receptor blockers, assaultCategory
T47.0X3APoisoning by histamine H2-receptor blockers, assault, initial encounterBillable
T47.0X3DPoisoning by histamine H2-receptor blockers, assault, subsequent encounterBillable
T47.0X3SPoisoning by histamine H2-receptor blockers, assault, sequelaBillable
T47.0X4Poisoning by histamine H2-receptor blockers, undeterminedCategory
T47.0X4APoisoning by histamine H2-receptor blockers, undetermined, initial encounterBillable
T47.0X4DPoisoning by histamine H2-receptor blockers, undetermined, subsequent encounterBillable
T47.0X4SPoisoning by histamine H2-receptor blockers, undetermined, sequelaBillable
T47.0X5Adverse effect of histamine H2-receptor blockersCategory
T47.0X5AAdverse effect of histamine H2-receptor blockers, initial encounterBillable
T47.0X5DAdverse effect of histamine H2-receptor blockers, subsequent encounterBillable
T47.0X5SAdverse effect of histamine H2-receptor blockers, sequelaBillable
T47.0X6Underdosing of histamine H2-receptor blockersCategory
T47.0X6AUnderdosing of histamine H2-receptor blockers, initial encounterBillable
T47.0X6DUnderdosing of histamine H2-receptor blockers, subsequent encounterBillable
T47.0X6SUnderdosing of histamine H2-receptor blockers, sequelaBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.