T63.442A — Toxic effect of venom of bees, intentional self-harm, initial encounter
T63.442A is a billable, specific ICD-10-CM code for toxic effect of venom of bees, 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 T63.442A
Also inherited, and the opposite of Excludes1: these conditions are not part of T63.442A, but a patient can have both, so you may code both.
Other codes that can never be billed with T63.442A
These codes carry an Excludes1 note pointing at T63.442A. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T63.442A alone.
Risk adjustment
T63.442A 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
T63.442A 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
T63.442A 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 T63.442. If T63.442A is not quite right, the correct code is usually one of these.
Questions about T63.442A
- Is T63.442A a billable ICD-10-CM code?
- Yes. T63.442A is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T63.442A 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).