Is T50.8X a billable ICD-10-CM code?

No. T50.8X is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does T50.8X sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).

T50.8X

T50.8X — Poisoning by, adverse effect of and underdosing of diagnostic agents

Non-billable headerICD-10-CM

T50.8X is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of diagnostic agents. 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 T50

A: initial encounter
D: subsequent encounter
S: sequela

Other codes that can never be billed with T50.8X

These codes carry an Excludes1 note pointing at T50.8X. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T50.8X alone.

T56.82Toxic effect of gadolinium

Risk adjustment

T50.8X 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 T50.8X

6 child codes. Green means billable.

Questions about T50.8X

Is T50.8X a billable ICD-10-CM code?: No. T50.8X is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T50.8X sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).