T24.4 Corrosion of unspecified degree of lower limb, except ankle and foot

Non-billable header with 5 child codes.

Code first

• (T51-T65) to identify chemical and intent

Use additional code

• external cause code to identify place (Y92)

Applies from T24 Burn and corrosion of lower limb, except ankle and foot

Excludes2 (not included here)

• burn and corrosion of ankle and foot (T25.-)
• burn and corrosion of hip region (T21.-)

7th character note

• The appropriate 7th character is to be added to each code from category T24

7th character required

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

Codes under T24.4

• T24.40 Corrosion of unspecified degree of unspecified site of lower limb, except ankle and foot
• T24.41 Corrosion of unspecified degree of thigh
• T24.42 Corrosion of unspecified degree of knee
• T24.43 Corrosion of unspecified degree of lower leg
• T24.49 Corrosion of unspecified degree of multiple sites of lower limb, except ankle and foot

Code annotations containing back-references to T24.4

Back-references to T24

• 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

• T24.392S Burn of third degree of multiple sites of left lower limb, except ankle and foot, sequela
• T24.399 Burn of third degree of multiple sites of unspecified lower limb, except ankle and foot
• T24.399A Burn of third degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter
• T24.399D Burn of third degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter
• T24.399S Burn of third degree of multiple sites of unspecified lower limb, except ankle and foot, sequela
• T24.4 Corrosion of unspecified degree of lower limb, except ankle and foot (this code)
• T24.40 Corrosion of unspecified degree of unspecified site of lower limb, except ankle and foot
• T24.401 Corrosion of unspecified degree of unspecified site of right lower limb, except ankle and foot
• T24.401A Corrosion of unspecified degree of unspecified site of right lower limb, except ankle and foot, initial encounter
• T24.401D Corrosion of unspecified degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter
• T24.401S Corrosion of unspecified degree of unspecified site of right lower limb, except ankle and foot, sequela