T20.74 Corrosion of third degree of nose (septum)

Non-billable ICD-10-CM code.

Applies from T20 Burn and corrosion of head, face, and neck

Excludes2 (not included here)

• burn and corrosion of ear drum (T28.41, T28.91)
• burn and corrosion of eye and adnexa (T26.-)
• burn and corrosion of mouth and pharynx (T28.0)

7th character note

• The appropriate 7th character is to be added to each code from category T20

7th character required

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

Applies from T20.7 Corrosion of third degree of head, face, and neck

Code first

• (T51-T65) to identify chemical and intent

Use additional code

• external cause code to identify place (Y92)

Code annotations containing back-references to T20.74

Back-references to T20

• 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 T20.74

• Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal) › nose (septum) › third degree

Nearby codes

• T20.72XS Corrosion of third degree of lip(s), sequela
• T20.73 Corrosion of third degree of chin
• T20.73XA Corrosion of third degree of chin, initial encounter
• T20.73XD Corrosion of third degree of chin, subsequent encounter
• T20.73XS Corrosion of third degree of chin, sequela
• T20.74 Corrosion of third degree of nose (septum) (this code)
• T20.74XA Corrosion of third degree of nose (septum), initial encounter
• T20.74XD Corrosion of third degree of nose (septum), subsequent encounter
• T20.74XS Corrosion of third degree of nose (septum), sequela
• T20.75 Corrosion of third degree of scalp [any part]
• T20.75XA Corrosion of third degree of scalp [any part], initial encounter