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T81.81XA vs T88.0

T81.81XA (Complication of inhalation therapy, initial encounter) compared with T88.0 (Infection following immunization), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Relationship

Informational

Excludes2 relationship

T81.81XA
Complication of inhalation therapy, initial encounter
T88.0
Infection following immunization

Distinct conditions — both may be reported.

“complications following immunization (T88.0-T88.1)”

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source: CMS ICD-10-CM tabular instructional notes

Informational

Excludes2 relationship

T88.0
Infection following immunization
T81.81XA
Complication of inhalation therapy, initial encounter

Distinct conditions — both may be reported.

“complication following procedure NEC (T81.-)”

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source: CMS ICD-10-CM tabular instructional notes

Can these codes be reported together?

Yes, when both are documented. T81.81XA carries an Excludes2 note covering T88.0: “complications following immunization (T88.0-T88.1)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Yes, when both are documented. T88.0 carries an Excludes2 note covering T81.81XA: “complication following procedure NEC (T81.-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

T81.81XAComplication of inhalation therapy, initial encounterT88.0Infection following immunization
Billing statusBillableNon-billable header
ClassificationS00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionComplication of inhalation therapy, initial encounter is a billable ICD-10-CM diagnosis code (T81.81A).Infection following immunization is a non-billable ICD-10-CM category code (T88.0).
7th characterThe appropriate 7th character is to be added to each code from category T81The appropriate 7th character is to be added to each code from category T88
Includes
Sepsis following immunization
Use additional code
code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
code(s) to identify the specified condition resulting from the complication
code to identify devices involved and details of circumstances (Y62-Y82)
code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
code(s) to identify the specified condition resulting from the complication
code to identify devices involved and details of circumstances (Y62-Y82)

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources