T63.481D Toxic effect of venom of other arthropod, accidental (unintentional), subsequent encounter

ICD-10-CM T63.481D: Toxic effect of venom of other arthropod, accidental (unintentional), subsequent encounter

ICD-10-CM code T63.481D designates the toxic effect of venom from other arthropods due to accidental or unintentional exposure during a subsequent encounter. Terminology records classify this active concept under the broader parent code T63.481 and assign it the semantic type of Injury or Poisoning. 1 4 5

Plain-language overview

The official descriptor for T63.481D is the toxic effect of venom of other arthropod, accidental (unintentional), subsequent encounter, and the terminology record status is active. 1

What this code represents

Terminology systems assign this code the semantic type of Injury or Poisoning, and it exists as a narrower concept under the parent code T63.481 for accidental toxic arthropod venom exposure. 1 4

The code system descriptor for T63.481D is toxic effect of venom of other arthropod, accidental (unintentional), subsequent encounter within the ICD-10-CM code system. 5

Coding details

Code T63.481D is identified as a billable and specific ICD-10-CM diagnosis code for the toxic effect of venom of other arthropod, accidental (unintentional), subsequent encounter. 6

The terminology record for T63.481D lists T63.481 as the parent concept for the toxic effect of venom of other arthropod, accidental (unintentional). [S1] 1

Documentation considerations

The terminology record includes a published abbreviation for this concept: toxic effect of venom of arthropod, accidental, subs. [S1] [S4] [S5] [S6] [S2] [S3] 1

What the sources add

Medicare billing articles list related venom toxicity codes, including T63.481A for the initial encounter, alongside terminology records that define T63.481D as a subsequent encounter. [S1, S3] 1 3

Medicare billing articles reference related venom toxic effect codes for hornets and wasps, while terminology records specifically define T63.481D for other arthropods. [S1, S2, S3] 1 2 3

Coverage and utilization context

Medicare billing articles for allergy testing and allergen immunotherapy include related venom toxicity codes in their text, while the terminology record establishes T63.481D as an active code. [S1, S2, S3] 1 2 3

Sources

1. ICD-10-CM T63.481D terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Article - Billing and Coding: Allergy Testing (A56558) — cms.gov; accessed 2026-07-27.
3. Article - Billing and Coding: Allergen Immunotherapy (A57678) — cms.gov; accessed 2026-07-27.
4. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
5. Browse Code Systems — vsac.nlm.nih.gov; accessed 2026-07-27.
6. T63.481D — Toxic effect of venom of other arthropod, accidental (unintentional), subsequent encounter | ICD-10 Code · Eleplan — eleplan.com; accessed 2026-07-27.