ICD-10-CM External Cause Index · FY 2026 84 Entries
Misadventure to patient during surgical or medical care in the External Cause Index ICD-10-CM
The main term Misadventure (s) to patient (s) during surgical or medical care carries 84 external cause index entries pointing to 28 ICD-10-CM codes. The default entry is Y69, the code the bare main term maps to; every indented line below refines the event by vehicle, object, place, or intent. External cause codes are reported after the injury code; verify the 7th character on the code page.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
84
Index Entries
28
Codes Referenced
Y69
Default Code
M
Letter
84 of 84 shown
ICD-10-CM
Index Entries Under Misadventure to patient during surgical or medical care 84 entries · 28 codes
Misadventure (s) to patient (s) during surgical or medical care Y69
contaminated medical or biological substance (blood, drug, fluid) Y64.9
administered (by) NEC Y64.9
immunization Y64.1
infusion Y64.0
injection Y64.1
specified means NEC Y64.8
transfusion Y64.0
vaccination Y64.1
excessive amount of blood or other fluid during transfusion or infusion Y63.0
failure
in dosage Y63.9
electroshock therapy Y63.4
inappropriate temperature (too hot or too cold) in local application and packing Y63.5
infusion
excessive amount of fluid Y63.0
incorrect dilution of fluid Y63.1
insulin-shock therapy Y63.4
nonadministration of necessary drug or biological substance Y63.6
overdose see Table of Drugs and Chemicals
radiation, in therapy Y63.2
radiation
overdose Y63.2
specified procedure NEC Y63.8
transfusion
excessive amount of blood Y63.0
mechanical, of instrument or apparatus (any) (during any procedure) Y65.8
sterile precautions (during procedure) Y62.9
aspiration of fluid or tissue (by puncture or catheterization, except heart) Y62.6
biopsy (except needle aspiration) Y62.8
needle (aspirating) Y62.6
blood sampling Y62.6
catheterization Y62.6
heart Y62.5
dialysis (kidney) Y62.2
endoscopic examination Y62.4
enema Y62.8
immunization Y62.3
infusion Y62.1
injection Y62.3
needle biopsy Y62.6
paracentesis (abdominal) (thoracic) Y62.6
perfusion Y62.2
puncture (lumbar) Y62.6
removal of catheter or packing Y62.8
specified procedure NEC Y62.8
surgical operation Y62.0
transfusion Y62.1
vaccination Y62.3
suture or ligature during surgical procedure Y65.2
to introduce or to remove tube or instrument see Failure, to
hemorrhage see Index to Diseases and Injuries, Complication(s)
inadvertent exposure of patient to radiation Y63.3
inappropriate
operation performed see Inappropriate operation performed
temperature (too hot or too cold) in local application or packing Y63.5
infusion Y69 see also Misadventure, by type, infusion
excessive amount of fluid Y63.0
incorrect dilution of fluid Y63.1
wrong fluid Y65.1
mismatched blood in transfusion Y65.0
nonadministration of necessary drug or biological substance Y63.6
overdose see Table of Drugs and Chemicals
radiation (in therapy) Y63.2
perforation see Index to Diseases and Injuries, Complication(s)
performance of inappropriate operation see Inappropriate operation performed
puncture see Index to Diseases and Injuries, Complication(s)
specified type NEC Y65.8
failure
suture or ligature during surgical operation Y65.2
to introduce or to remove tube or instrument see Failure, to
infusion of wrong fluid Y65.1
performance of inappropriate operation see Inappropriate operation performed
transfusion of mismatched blood Y65.0
wrong
fluid in infusion Y65.1
placement of endotracheal tube during anesthetic procedure Y65.3
transfusion see Misadventure, by type, transfusion
excessive amount of blood Y63.0
mismatched blood Y65.0
wrong
drug given in error see Table of Drugs and Chemicals
fluid in infusion Y65.1
placement of endotracheal tube during anesthetic procedure Y65.3
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Related Index Terms
FailureInappropriate operation performedAll external cause terms starting with MExternal Cause of Injuries IndexICD-10-CM Code Lookup
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM External Cause of Injuries Index release files, effective October 1, 2025 through September 30, 2026.
