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ICD-10-CM · FY 2026 APRIL UPDATE

T36.6X

Poisoning by, adverse effect of and underdosing of rifampicins

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
T36.6X1Poisoning by rifampicins, accidental (unintentional)Category
T36.6X1APoisoning by rifampicins, accidental (unintentional), initial encounterBillable
T36.6X1DPoisoning by rifampicins, accidental (unintentional), subsequent encounterBillable
T36.6X1SPoisoning by rifampicins, accidental (unintentional), sequelaBillable
T36.6X2Poisoning by rifampicins, intentional self-harmCategory
T36.6X2APoisoning by rifampicins, intentional self-harm, initial encounterBillable
T36.6X2DPoisoning by rifampicins, intentional self-harm, subsequent encounterBillable
T36.6X2SPoisoning by rifampicins, intentional self-harm, sequelaBillable
T36.6X3Poisoning by rifampicins, assaultCategory
T36.6X3APoisoning by rifampicins, assault, initial encounterBillable
T36.6X3DPoisoning by rifampicins, assault, subsequent encounterBillable
T36.6X3SPoisoning by rifampicins, assault, sequelaBillable
T36.6X4Poisoning by rifampicins, undeterminedCategory
T36.6X4APoisoning by rifampicins, undetermined, initial encounterBillable
T36.6X4DPoisoning by rifampicins, undetermined, subsequent encounterBillable
T36.6X4SPoisoning by rifampicins, undetermined, sequelaBillable
T36.6X5Adverse effect of rifampicinsCategory
T36.6X5AAdverse effect of rifampicins, initial encounterBillable
T36.6X5DAdverse effect of rifampicins, subsequent encounterBillable
T36.6X5SAdverse effect of rifampicins, sequelaBillable
T36.6X6Underdosing of rifampicinsCategory
T36.6X6AUnderdosing of rifampicins, initial encounterBillable
T36.6X6DUnderdosing of rifampicins, subsequent encounterBillable
T36.6X6SUnderdosing of rifampicins, 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.