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T20.412

ICD-10-CM 2027

Corrosion of unspecified degree of left ear [any part, except ear drum]

Child codes

  • T20.412A – Corrosion of unspecified degree of left ear [any part, except ear drum], initial encounter
  • T20.412D – Corrosion of unspecified degree of left ear [any part, except ear drum], subsequent encounter
  • T20.412S – Corrosion of unspecified degree of left ear [any part, except ear drum], sequela

Sibling codes

  • T20.411 – Corrosion of unspecified degree of right ear [any part, except ear drum]
  • T20.419 – Corrosion of unspecified degree of unspecified ear [any part, except ear drum]

Inherited from T20.41: Corrosion of unspecified degree of ear [any part, except ear drum]

Excludes2

  • corrosion of ear drum (T28.91-)

Inherited from T20.4: Corrosion of unspecified 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)

Inherited from T20: Burn and corrosion of head, face, and neck

7th character

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

7th character note

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

Excludes2

  • 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)

Part of: T20.41: Corrosion of unspecified degree of ear [any part, except ear drum] › T20.4: Corrosion of unspecified degree of head, face, and neck › T20: Burn and corrosion of head, face, and neck