T80.911A Delayed hemolytic transfusion reaction, unspecified incompatibility, initial encounter

Billable ICD-10-CM code, FY2026.

Built from T80.911 with 7th character A (initial encounter).

Applies from T80 Complications following infusion, transfusion and therapeutic injection

Includes

• complications following perfusion

Excludes2 (not included here)

• bone marrow transplant rejection (T86.01)
• febrile nonhemolytic transfusion reaction (R50.84)
• fluid overload due to transfusion (E87.71)
• posttransfusion purpura (D69.51)
• transfusion associated circulatory overload (TACO) (E87.71)
• transfusion (red blood cell) associated hemochromatosis (E83.111)
• transfusion related acute lung injury (TRALI) (J95.84)

7th character note

• The appropriate 7th character is to be added to each code from category T80

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Applies from T80.91 Hemolytic transfusion reaction, unspecified incompatibility

Excludes1 (never code together)

• ABO incompatibility with hemolytic transfusion reaction (T80.31-)
• Non-ABO incompatibility with hemolytic transfusion reaction (T80.A1-)
• Rh incompatibility with hemolytic transfusion reaction (T80.41-)

Code annotations containing back-references to T80.911A

Back-references to T80

• Type 2 Excludes: T45.8 Poisoning by, adverse effect of and underdosing of other primarily systemic and hematological agents ("transfusion reactions (T80.-)")
• Type 2 Excludes: T78 Adverse effects, not elsewhere classified ("complications of surgical and medical care NEC (T80-T88)")
• Type 2 Excludes: T79 Certain early complications of trauma, not elsewhere classified ("complications occurring during or following medical procedures (T80-T88)")
• Type 2 Excludes: T79 Certain early complications of trauma, not elsewhere classified ("complications of surgical and medical care NEC (T80-T88)")
• Type 2 Excludes: T81 Complications of procedures, not elsewhere classified ("complications following infusion, transfusion and therapeutic injection (T80.-)")
• Type 2 Excludes: T88 Other complications of surgical and medical care, not elsewhere classified ("complication following infusion, transfusion and therapeutic injection (T80.-)")
• Type 1 Excludes: T88.7 Unspecified adverse effect of drug or medicament ("specified adverse effects of drugs and medicaments (A00-R94 and T80-T88.6, T88.8)")

Diagnosis Index entries for T80.911A

• Complication (s) (from) (of) › transfusion (blood) (lymphocytes) (plasma) › incompatibility reaction (antigen unspecified) › delayed (antigen unspecified)

Nearby codes

• T80.910 Acute hemolytic transfusion reaction, unspecified incompatibility
• T80.910A Acute hemolytic transfusion reaction, unspecified incompatibility, initial encounter
• T80.910D Acute hemolytic transfusion reaction, unspecified incompatibility, subsequent encounter
• T80.910S Acute hemolytic transfusion reaction, unspecified incompatibility, sequela
• T80.911 Delayed hemolytic transfusion reaction, unspecified incompatibility
• T80.911A Delayed hemolytic transfusion reaction, unspecified incompatibility, initial encounter (this code)
• T80.911D Delayed hemolytic transfusion reaction, unspecified incompatibility, subsequent encounter
• T80.911S Delayed hemolytic transfusion reaction, unspecified incompatibility, sequela
• T80.919 Hemolytic transfusion reaction, unspecified incompatibility, unspecified as acute or delayed
• T80.919A Hemolytic transfusion reaction, unspecified incompatibility, unspecified as acute or delayed, initial encounter
• T80.919D Hemolytic transfusion reaction, unspecified incompatibility, unspecified as acute or delayed, subsequent encounter