T24.021A Burn of unspecified degree of right knee, initial encounter

Billable ICD-10-CM code, FY2026.

Built from T24.021 with 7th character A (initial encounter).

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

Applies from T24.0 Burn of unspecified degree of lower limb, except ankle and foot

Use additional code

• external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

Code annotations containing back-references to T24.021A

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)")

Diagnosis Index entries for T24.021A

• Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal) › knee › right

Nearby codes

• T24.019A Burn of unspecified degree of unspecified thigh, initial encounter
• T24.019D Burn of unspecified degree of unspecified thigh, subsequent encounter
• T24.019S Burn of unspecified degree of unspecified thigh, sequela
• T24.02 Burn of unspecified degree of knee
• T24.021 Burn of unspecified degree of right knee
• T24.021A Burn of unspecified degree of right knee, initial encounter (this code)
• T24.021D Burn of unspecified degree of right knee, subsequent encounter
• T24.021S Burn of unspecified degree of right knee, sequela
• T24.022 Burn of unspecified degree of left knee
• T24.022A Burn of unspecified degree of left knee, initial encounter
• T24.022D Burn of unspecified degree of left knee, subsequent encounter