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ICD-10-CM · FY 2026 APRIL UPDATE

T37.2X

Poisoning by, adverse effect of and underdosing of antimalarials and drugs acting on other blood protozoa

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
T37.2X1Poisoning by antimalarials and drugs acting on other blood protozoa, accidental (unintentional)Category
T37.2X1APoisoning by antimalarials and drugs acting on other blood protozoa, accidental (unintentional), initial encounterBillable
T37.2X1DPoisoning by antimalarials and drugs acting on other blood protozoa, accidental (unintentional), subsequent encounterBillable
T37.2X1SPoisoning by antimalarials and drugs acting on other blood protozoa, accidental (unintentional), sequelaBillable
T37.2X2Poisoning by antimalarials and drugs acting on other blood protozoa, intentional self-harmCategory
T37.2X2APoisoning by antimalarials and drugs acting on other blood protozoa, intentional self-harm, initial encounterBillable
T37.2X2DPoisoning by antimalarials and drugs acting on other blood protozoa, intentional self-harm, subsequent encounterBillable
T37.2X2SPoisoning by antimalarials and drugs acting on other blood protozoa, intentional self-harm, sequelaBillable
T37.2X3Poisoning by antimalarials and drugs acting on other blood protozoa, assaultCategory
T37.2X3APoisoning by antimalarials and drugs acting on other blood protozoa, assault, initial encounterBillable
T37.2X3DPoisoning by antimalarials and drugs acting on other blood protozoa, assault, subsequent encounterBillable
T37.2X3SPoisoning by antimalarials and drugs acting on other blood protozoa, assault, sequelaBillable
T37.2X4Poisoning by antimalarials and drugs acting on other blood protozoa, undeterminedCategory
T37.2X4APoisoning by antimalarials and drugs acting on other blood protozoa, undetermined, initial encounterBillable
T37.2X4DPoisoning by antimalarials and drugs acting on other blood protozoa, undetermined, subsequent encounterBillable
T37.2X4SPoisoning by antimalarials and drugs acting on other blood protozoa, undetermined, sequelaBillable
T37.2X5Adverse effect of antimalarials and drugs acting on other blood protozoaCategory
T37.2X5AAdverse effect of antimalarials and drugs acting on other blood protozoa, initial encounterBillable
T37.2X5DAdverse effect of antimalarials and drugs acting on other blood protozoa, subsequent encounterBillable
T37.2X5SAdverse effect of antimalarials and drugs acting on other blood protozoa, sequelaBillable
T37.2X6Underdosing of antimalarials and drugs acting on other blood protozoaCategory
T37.2X6AUnderdosing of antimalarials and drugs acting on other blood protozoa, initial encounterBillable
T37.2X6DUnderdosing of antimalarials and drugs acting on other blood protozoa, subsequent encounterBillable
T37.2X6SUnderdosing of antimalarials and drugs acting on other blood protozoa, 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.