ICD-10-CM diagnosis code
T63.451A Toxic effect of venom of hornets, accidental (unintentional), initial encounter
- Billable
- Yes, a complete code (FY2026)
Encounter (7th character)
This code is for the initial encounter: the patient is receiving active treatment for the condition (for example surgery, an emergency department visit or evaluation by a new clinician).
Documenting T63.451A? Write the note in seconds
Paste your rough notes and get a structured SOAP note. Free, no account needed.
Other codes in T63
456 complete codes in this category.
- T63.443AToxic effect of venom of bees, assault, initial encounter
- T63.443DToxic effect of venom of bees, assault, subsequent encounter
- T63.443SToxic effect of venom of bees, assault, sequela
- T63.444AToxic effect of venom of bees, undetermined, initial encounter
- T63.444DToxic effect of venom of bees, undetermined, subsequent encounter
- T63.444SToxic effect of venom of bees, undetermined, sequela
- T63.451AToxic effect of venom of hornets, accidental (unintentional), initial encounter
- T63.451DToxic effect of venom of hornets, accidental (unintentional), subsequent encounter
- T63.451SToxic effect of venom of hornets, accidental (unintentional), sequela
- T63.452AToxic effect of venom of hornets, intentional self-harm, initial encounter
- T63.452DToxic effect of venom of hornets, intentional self-harm, subsequent encounter
- T63.452SToxic effect of venom of hornets, intentional self-harm, sequela
Documentation tips
- Make sure the note supports every element of the title, “Toxic effect of venom of hornets, accidental (unintentional), initial encounter”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to T63.
The international WHO ICD-10 also has T63, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free