Chapter XIX
Injury, poisoning and certain other consequences of external causes
(S00-T98)

Burns and corrosions
(T20-T32)

Includes: burns (thermal) from:
· electrical heating appliances
· electricity
· flame
· friction
· hot air and hot gases
· hot objects
· lightning
· radiation
chemical burns [corrosions] (external)(internal)
scalds
Excludes: erythema [dermatitis] ab igne ( L59.0 )
radiation-related disorders of the skin and subcutaneous tissue ( L55-L59 )
sunburn ( L55.- )

Burns and corrosions of multiple and unspecified body regions
(T29-T32)

T29 Burns and corrosions of multiple body regions
Includes: burns and corrosions classifiable to more than one of the categories T20-T28
T29.0 Burns of multiple regions, unspecified degree
Multiple burns NOS
T29.1 Burns of multiple regions, no more than first-degree burns mentioned
T29.2 Burns of multiple regions, no more than second-degree burns mentioned
T29.3 Burns of multiple regions, at least one burn of third degree mentioned
T29.4 Corrosions of multiple regions, unspecified degree
Multiple corrosions NOS
T29.5 Corrosions of multiple regions, no more than first-degree corrosions mentioned
T29.6 Corrosions of multiple regions, no more than second-degree corrosions mentioned
T29.7 Corrosions of multiple regions, at least one corrosion of third degree mentioned

T30 Burn and corrosion, body region unspecified
Excludes: burn and corrosion with statement of the extent of body surface involved ( T31-T32 )
T30.0 Burn of unspecified body region, unspecified degree
Burn NOS
T30.1 Burn of first degree, body region unspecified
First-degree burn NOS
T30.2 Burn of second degree, body region unspecified
Second-degree burn NOS
T30.3 Burn of third degree, body region unspecified
Third-degree burn NOS
T30.4 Corrosion of unspecified body region, unspecified degree
Corrosion NOS
T30.5 Corrosion of first degree, body region unspecified
First-degree corrosion NOS
T30.6 Corrosion of second degree, body region unspecified
Second-degree corrosion NOS
T30.7 Corrosion of third degree, body region unspecified
Third-degree corrosion NOS

T31 Burns classified according to extent of body surface involved
Note: This category is to be used as the primary code only when the site of the burn is unspecified. It may be used as a supplementary code, if desired, with categories T20-T29 when the site is specified.
T31.0 Burns involving less than 10% of body surface
T31.1 Burns involving 10-19% of body surface
T31.2 Burns involving 20-29% of body surface
T31.3 Burns involving 30-39% of body surface
T31.4 Burns involving 40-49% of body surface
T31.5 Burns involving 50-59% of body surface
T31.6 Burns involving 60-69% of body surface
T31.7 Burns involving 70-79% of body surface
T31.8 Burns involving 80-89% of body surface
T31.9 Burns involving 90% or more of body surface

T32 Corrosions classified according to extent of body surface involved
Note: This category is to be used as the primary code only when the site of the corrosion is unspecified. It may be used as a supplementary code, if desired, with categories T20-T29 when the site is specified.
T32.0 Corrosions involving less than 10% of body surface
T32.1 Corrosions involving 10-19% of body surface
T32.2 Corrosions involving 20-29% of body surface
T32.3 Corrosions involving 30-39% of body surface
T32.4 Corrosions involving 40-49% of body surface
T32.5 Corrosions involving 50-59% of body surface
T32.6 Corrosions involving 60-69% of body surface
T32.7 Corrosions involving 70-79% of body surface
T32.8 Corrosions involving 80-89% of body surface
T32.9 Corrosions involving 90% or more of body surface