External causes of morbidity (V00-Y99)

Note:
This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.

Exposure to animate mechanical forces (W50-W64)

Excludes 1:
Toxic effect of contact with venomous animals and plants (T63.-)
W50 Accidental hit, strike, kick, twist, bite or scratch by another person [+]
Includes: hit, strike, kick, twist, bite, or scratch by another person NOS
Excludes 1: assault by bodily force (Y04)
struck by objects (W20-W22)
The appropriate 7th character is to be added to each code from category W50
A - initial encounter
D - subsequent encounter
S - sequela
W51 Accidental striking against or bumped into by another person
Excludes 1: assault by striking against or bumping into by another person (Y04.2)
fall due to collision with another person (W03)
The appropriate 7th character is to be added to code W51
A - initial encounter
D - subsequent encounter
S - sequela
W52 Crushed, pushed or stepped on by crowd or human stampede
Crushed, pushed or stepped on by crowd or human stampede with or without fall
The appropriate 7th character is to be added to code W52
A - initial encounter
D - subsequent encounter
S - sequela
W53 Contact with rodent [+]
Includes: contact with saliva, feces or urine of rodent
The appropriate 7th character is to be added to each code from category W53
A - initial encounter
D - subsequent encounter
S - sequela
W54 Contact with dog [+]
Includes: contact with saliva, feces or urine of dog
The appropriate 7th character is to be added to each code from category W54
A - initial encounter
D - subsequent encounter
S - sequela
W55 Contact with other mammals [+]
Includes: contact with saliva, feces or urine of mammal
Excludes 1: animal being ridden- see transport accidents
bitten or struck by dog (W54)
bitten or struck by rodent (W53.-)
contact with marine mammals (W56.-)
The appropriate 7th character is to be added to each code from category W55
A - initial encounter
D - subsequent encounter
S - sequela
W56 Contact with nonvenomous marine animal [+]
Excludes 1: contact with venomous marine animal (T63.-)
The appropriate 7th character is to be added to each code from category W56
A - initial encounter
D - subsequent encounter
S - sequela
W57 Bitten or stung by nonvenomous insect and other nonvenomous arthropods
Excludes 1: contact with venomous insects and arthropods (T63.2-, T63.3-, T63.4-)
The appropriate 7th character is to be added to code W57
A - initial encounter
D - subsequent encounter
S - sequela
W58 Contact with crocodile or alligator [+]
The appropriate 7th character is to be added to each code from category W58
A - initial encounter
D - subsequent encounter
S - sequela
W59 Contact with other nonvenomous reptiles [+]
Excludes 1: contact with venomous reptile (T63.0-, T63.1-)
The appropriate 7th character is to be added to each code from category W59
A - initial encounter
D - subsequent encounter
S - sequela
W60 Contact with nonvenomous plant thorns and spines and sharp leaves
Excludes 1: Contact with venomous plants (T63.7-)
The appropriate 7th character is to be added to code W60
A - initial encounter
D - subsequent encounter
S - sequela
W61 Contact with birds (domestic) (wild) [+]
Includes: contact with excreta of birds
The appropriate 7th character is to be added to each code from category W61
A - initial encounter
D - subsequent encounter
S - sequela
W62 Contact with nonvenomous amphibians [+]
Excludes 1: contact with venomous amphibians (T63.81-T63.83)
The appropriate 7th character is to be added to each code from category W62
A - initial encounter
D - subsequent encounter
S - sequela
W64 Exposure to other animate mechanical forces
Includes: exposure to nonvenomous animal NOS
Excludes 1: contact with venomous animal (T63.-)
The appropriate 7th character is to be added to code W64
A - initial encounter
D - subsequent encounter
S - sequela

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