T20.419

T20.419: Corrosion of unspecified degree of unspecified ear [any part, except ear drum]

Non-billable headerICD-10-CMunspecified

T20.419 is a non-billable header ICD-10-CM code for corrosion of unspecified degree of unspecified ear [any part, except ear drum]. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

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

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 inherited from the categories above T20.419

Not part of this code, but both may be coded when both are present.

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

corrosion of ear drum (T28.91-)

Written on T20: Burn and corrosion of head, face, and neck

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)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T20.419

3 child codes. Green means billable.