2026 ICD-10-CM Diagnosis Code T80.0XXAAir embolism following infusion, transfusion and therapeutic injection, initial encounter
T80.0XXA is a billable ICD-10-CM diagnosis code for air embolism following infusion, transfusion and therapeutic injection, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 175 through 176. Coders also document this condition as air embolism complicating injection. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complication of other surgical or medical care, injury, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Air embolism complicating injection
- Air embolism complicating intravenous therapy
- Air embolism due to and following transfusion
- Patient death or serious disability associated with intravascular air embolism that occurs while being cared for in a healthcare facility
- Serious reportable event associated with product or device
- Transfusion reaction due to air embolism
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Complications following infusion, transfusion and therapeutic injection (T80). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Convert T80.0XXA to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About T80.0XXAOverview
Is T80.0XXA a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report air embolism following infusion, transfusion and therapeutic injection, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in T80.0XXA mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for air embolism following infusion, transfusion and therapeutic injection, such as an emergency visit or first evaluation.
What MS-DRG does T80.0XXA group to?
When air embolism following infusion, transfusion and therapeutic injection, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 175, 176, with relative weights from 0.8050 to 1.3736 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of T80.0XXA?
Under the General Equivalence Mappings, air embolism following infusion, transfusion and therapeutic injection, initial encounter converts to ICD-9-CM 999.1 (air embol comp med care). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
