Is T54.3 a billable ICD-10-CM code?

No. T54.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does T54.3 sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Toxic effects of substances chiefly nonmedicinal as to source (T51-T65).

T54.3

T54.3 — Toxic effects of corrosive alkalis and alkali-like substances

Non-billable headerICD-10-CM

T54.3 is a non-billable header ICD-10-CM code for toxic effects of corrosive alkalis and alkali-like substances. 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 T54

A: initial encounter
D: subsequent encounter
S: sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Toxic effects of potassium hydroxide
Toxic effects of sodium hydroxide

Risk adjustment

T54.3 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 T54.3

1 child code. Green means billable.

T54.3XToxic effects of corrosive alkalis and alkali-like substances

Related codes at this level

Codes that share T54. If T54.3 is not quite right, the correct code is usually one of these.

Questions about T54.3

Is T54.3 a billable ICD-10-CM code?: No. T54.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T54.3 sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Toxic effects of substances chiefly nonmedicinal as to source (T51-T65).