Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

All Codes Billable Only

Internal Codes

Page 161 of 196

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Y24.8XXD—
Other firearm discharge, undetermined intent, subsequent encounter
Y24.8XXS—
Other firearm discharge, undetermined intent, sequela
Y24.9—
Unspecified firearm discharge, undetermined intent
Y24.9XXA—
Unspecified firearm discharge, undetermined intent, initial encounter
Y24.9XXD—
Unspecified firearm discharge, undetermined intent, subsequent encounter
Y24.9XXS—
Unspecified firearm discharge, undetermined intent, sequela
Y25—
Contact with explosive material, undetermined intent
Y25.XXXA—
Contact with explosive material, undetermined intent, initial encounter
Y25.XXXD—
Contact with explosive material, undetermined intent, subsequent encounter
Y25.XXXS—
Contact with explosive material, undetermined intent, sequela
Y26—
Exposure to smoke, fire and flames, undetermined intent
Y26.XXXA—
Exposure to smoke, fire and flames, undetermined intent, initial encounter
Y26.XXXD—
Exposure to smoke, fire and flames, undetermined intent, subsequent encounter
Y26.XXXS—
Exposure to smoke, fire and flames, undetermined intent, sequela
Y27.0—
Contact with steam and hot vapors, undetermined intent
Y27.0XXA—
Contact with steam and hot vapors, undetermined intent, initial encounter
Y27.0XXD—
Contact with steam and hot vapors, undetermined intent, subsequent encounter
Y27.0XXS—
Contact with steam and hot vapors, undetermined intent, sequela
Y27.1—
Contact with hot tap water, undetermined intent
Y27.1XXA—
Contact with hot tap water, undetermined intent, initial encounter
Y27.1XXD—
Contact with hot tap water, undetermined intent, subsequent encounter
Y27.1XXS—
Contact with hot tap water, undetermined intent, sequela
Y27.2—
Contact with hot fluids, undetermined intent
Y27.2XXA—
Contact with hot fluids, undetermined intent, initial encounter
Y27.2XXD—
Contact with hot fluids, undetermined intent, subsequent encounter
Y27.2XXS—
Contact with hot fluids, undetermined intent, sequela
Y27.3—
Contact with hot household appliance, undetermined intent
Y27.3XXA—
Contact with hot household appliance, undetermined intent, initial encounter
Y27.3XXD—
Contact with hot household appliance, undetermined intent, subsequent encounter
Y27.3XXS—
Contact with hot household appliance, undetermined intent, sequela
Y27.8—
Contact with other hot objects, undetermined intent
Y27.8XXA—
Contact with other hot objects, undetermined intent, initial encounter
Y27.8XXD—
Contact with other hot objects, undetermined intent, subsequent encounter
Y27.8XXS—
Contact with other hot objects, undetermined intent, sequela
Y27.9—
Contact with unspecified hot objects, undetermined intent
Y27.9XXA—
Contact with unspecified hot objects, undetermined intent, initial encounter
Y27.9XXD—
Contact with unspecified hot objects, undetermined intent, subsequent encounter
Y27.9XXS—
Contact with unspecified hot objects, undetermined intent, sequela
Y28.0—
Contact with sharp glass, undetermined intent
Y28.0XXA—
Contact with sharp glass, undetermined intent, initial encounter
Y28.0XXD—
Contact with sharp glass, undetermined intent, subsequent encounter
Y28.0XXS—
Contact with sharp glass, undetermined intent, sequela
Y28.1—
Contact with knife, undetermined intent
Y28.1XXA—
Contact with knife, undetermined intent, initial encounter
Y28.1XXD—
Contact with knife, undetermined intent, subsequent encounter
Y28.1XXS—
Contact with knife, undetermined intent, sequela
Y28.2—
Contact with sword or dagger, undetermined intent
Y28.2XXA—
Contact with sword or dagger, undetermined intent, initial encounter
Y28.2XXD—
Contact with sword or dagger, undetermined intent, subsequent encounter
Y28.2XXS—
Contact with sword or dagger, undetermined intent, sequela

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