Is T20.419 a billable ICD-10-CM code?

No. T20.419 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does T20.419 sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Burns and corrosions of external body surface, specified by site (T20-T25).

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

Risk adjustment

T20.419 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead T20.419

3 child codes. Green means billable.

Related codes at this level

Codes that share T20.41. If T20.419 is not quite right, the correct code is usually one of these.

Questions about T20.419

Is T20.419 a billable ICD-10-CM code?: No. T20.419 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T20.419 sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Burns and corrosions of external body surface, specified by site (T20-T25).