T24.309A Guidelines & Instructional Notes: Burn third deg of unsp site unsp lower limb, ex ank/ft, init

Instruction Source: T24.309A

Burn third deg of unsp site unsp lower limb, ex ank/ft, init

Instruction Source: T24.309

Burn of third degree of unspecified site of unspecified lower limb, except ankle and foot

Instruction Source: T24.30

Burn of third degree of unspecified site of lower limb, except ankle and foot

Instruction Source: T24.3

Burn of third degree of lower limb, except ankle and foot

Instruction Source: T24

Burn and corrosion of lower limb, except ankle and foot

Excludes 2 (Not Included Here)

Instruction Source: T20-T25

Burns and corrosions of external body surface, specified by site (T20-T25)

burns and corrosions of first degree [erythema]
burns and corrosions of second degree [blisters][epidermal loss]
burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]

Instruction Source: S00-T88

Injury, poisoning and certain other consequences of external causes

Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code