Is T28.9 a billable ICD-10-CM code?

No. T28.9 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does T28.9 sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Burns and corrosions confined to eye and internal organs (T26-T28).

T28.9

T28.9 — Corrosions of other and unspecified internal organs

Non-billable headerICD-10-CM

T28.9 is a non-billable header ICD-10-CM code for corrosions of other and unspecified internal organs. 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 T28

A: initial encounter
D: subsequent encounter
S: sequela

Code first

The underlying condition must be sequenced before this code.

(T51-T65) to identify chemical and intent

Risk adjustment

T28.9 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 T28.9

3 child codes. Green means billable.

Related codes at this level

Codes that share T28. If T28.9 is not quite right, the correct code is usually one of these.

Questions about T28.9

Is T28.9 a billable ICD-10-CM code?: No. T28.9 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T28.9 sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Burns and corrosions confined to eye and internal organs (T26-T28).