Is T63.462A a billable ICD-10-CM code?

Yes. T63.462A is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does T63.462A 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).

T63.462A

T63.462A — Toxic effect of venom of wasps, intentional self-harm, initial encounter

Billable / specific codeICD-10-CM

T63.462A is a billable, specific ICD-10-CM code for toxic effect of venom of wasps, intentional self-harm, initial encounter. It is valid for submission on a claim.

7th character "A" — initial encounter

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 T63.462A

Also inherited, and the opposite of Excludes1: these conditions are not part of T63.462A, 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 T63.462A

These codes carry an Excludes1 note pointing at T63.462A. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T63.462A 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

T63.462A risk-adjusts. Under the CMS-HCC V28 model it maps to these categories:

HCC 155 Major Depression, Moderate or Severe, without Psychosis0.299 RAF
HCC 155 Major Depression, Moderate or Severe, without Psychosis0.299 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

T63.462A is named in 13 Medicare coverage policies — 13 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56538Billing and Coding: Allergen Immunotherapy
A56538Billing and Coding: Allergen Immunotherapy
A56558Billing and Coding: Allergy Testing
A56612Billing and Coding: CT of the Head

Code history

T63.462A has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share T63.462. If T63.462A is not quite right, the correct code is usually one of these.

Questions about T63.462A

Is T63.462A a billable ICD-10-CM code?: Yes. T63.462A is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T63.462A 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).