T25.43 Corrosion of unspecified degree of toe(s) (nail)

Non-billable header with 3 child codes.

Applies from T25 Burn and corrosion of ankle and foot

7th character note

• The appropriate 7th character is to be added to each code from category T25

7th character required

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

Applies from T25.4 Corrosion of unspecified degree of ankle and foot

Code first

• (T51-T65) to identify chemical and intent

Use additional code

• external cause code to identify place (Y92)

Codes under T25.43

• T25.431 Corrosion of unspecified degree of right toe(s) (nail)
• T25.432 Corrosion of unspecified degree of left toe(s) (nail)
• T25.439 Corrosion of unspecified degree of unspecified toe(s) (nail)

Code annotations containing back-references to T25.43

Back-references to T25.43

• Type 2 Excludes: T25.42 Corrosion of unspecified degree of foot ("corrosion of unspecified degree of toe(s) (nail) (T25.43-)")

Back-references to T25

• Type 2 Excludes: T24 Burn and corrosion of lower limb, except ankle and foot ("burn and corrosion of ankle and foot (T25.-)")
• Type 1 Excludes: T66 Radiation sickness, unspecified ("burns (T20-T31)")
• Type 2 Excludes: T67 Effects of heat and light ("burns (T20-T31)")
• Type 2 Excludes: T75 Other and unspecified effects of other external causes ("burns (electric) (T20-T31)")

Nearby codes

• T25.422S Corrosion of unspecified degree of left foot, sequela
• T25.429 Corrosion of unspecified degree of unspecified foot
• T25.429A Corrosion of unspecified degree of unspecified foot, initial encounter
• T25.429D Corrosion of unspecified degree of unspecified foot, subsequent encounter
• T25.429S Corrosion of unspecified degree of unspecified foot, sequela
• T25.43 Corrosion of unspecified degree of toe(s) (nail) (this code)
• T25.431 Corrosion of unspecified degree of right toe(s) (nail)
• T25.431A Corrosion of unspecified degree of right toe(s) (nail), initial encounter
• T25.431D Corrosion of unspecified degree of right toe(s) (nail), subsequent encounter
• T25.431S Corrosion of unspecified degree of right toe(s) (nail), sequela
• T25.432 Corrosion of unspecified degree of left toe(s) (nail)