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ICD-10-CM · FY 2026 APRIL UPDATE

T37.1X

Poisoning by, adverse effect of and underdosing of antimycobacterial drugs

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
T37.1X1Poisoning by antimycobacterial drugs, accidental (unintentional)Category
T37.1X1APoisoning by antimycobacterial drugs, accidental (unintentional), initial encounterBillable
T37.1X1DPoisoning by antimycobacterial drugs, accidental (unintentional), subsequent encounterBillable
T37.1X1SPoisoning by antimycobacterial drugs, accidental (unintentional), sequelaBillable
T37.1X2Poisoning by antimycobacterial drugs, intentional self-harmCategory
T37.1X2APoisoning by antimycobacterial drugs, intentional self-harm, initial encounterBillable
T37.1X2DPoisoning by antimycobacterial drugs, intentional self-harm, subsequent encounterBillable
T37.1X2SPoisoning by antimycobacterial drugs, intentional self-harm, sequelaBillable
T37.1X3Poisoning by antimycobacterial drugs, assaultCategory
T37.1X3APoisoning by antimycobacterial drugs, assault, initial encounterBillable
T37.1X3DPoisoning by antimycobacterial drugs, assault, subsequent encounterBillable
T37.1X3SPoisoning by antimycobacterial drugs, assault, sequelaBillable
T37.1X4Poisoning by antimycobacterial drugs, undeterminedCategory
T37.1X4APoisoning by antimycobacterial drugs, undetermined, initial encounterBillable
T37.1X4DPoisoning by antimycobacterial drugs, undetermined, subsequent encounterBillable
T37.1X4SPoisoning by antimycobacterial drugs, undetermined, sequelaBillable
T37.1X5Adverse effect of antimycobacterial drugsCategory
T37.1X5AAdverse effect of antimycobacterial drugs, initial encounterBillable
T37.1X5DAdverse effect of antimycobacterial drugs, subsequent encounterBillable
T37.1X5SAdverse effect of antimycobacterial drugs, sequelaBillable
T37.1X6Underdosing of antimycobacterial drugsCategory
T37.1X6AUnderdosing of antimycobacterial drugs, initial encounterBillable
T37.1X6DUnderdosing of antimycobacterial drugs, subsequent encounterBillable
T37.1X6SUnderdosing of antimycobacterial drugs, 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.