Is T63.023 a billable ICD-10-CM code?

No. T63.023 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does T63.023 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).

T63.023

T63.023 — Toxic effect of coral snake venom, assault

Non-billable headerICD-10-CM

T63.023 is a non-billable header ICD-10-CM code for toxic effect of coral snake venom, assault. 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 T63

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 inherited from the categories above T63.023

Also inherited, and the opposite of Excludes1: these conditions are not part of T63.023, but a patient can have both, so you may code both.

Written on T63 — Toxic effect of contact with venomous animals and plants

ingestion of toxic animal or plant (T61.-, T62.-)

Other codes that can never be billed with T63.023

These codes carry an Excludes1 note pointing at T63.023. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T63.023 alone.

W64Exposure to other animate mechanical forces
W64.XXXAExposure to other animate mechanical forces, initial encounter
W64.XXXDExposure to other animate mechanical forces, subsequent encounter
W64.XXXSExposure to other animate mechanical forces, sequela
W56Contact with nonvenomous marine animal

Risk adjustment

T63.023 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 history

T63.023 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead T63.023

3 child codes. Green means billable.

Related codes at this level

Codes that share T63.02. If T63.023 is not quite right, the correct code is usually one of these.

Questions about T63.023

Is T63.023 a billable ICD-10-CM code?: No. T63.023 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T63.023 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).