ICD-10-CM 2027 diagnosis code
T63.0Toxic effect of snake venom
T63.0 is a header code, so it can't be reported by itself. Choose one of the 9 more specific codes beneath it and add the required 7th character.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About T63.0
T63.0 is the ICD-10-CM diagnosis code for toxic effect of snake venom. It belongs to category T63 (toxic effect of contact with venomous animals and plants), block T51-T65 (toxic effects of substances chiefly nonmedicinal as to source) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 9 subcodes must be used instead.
Within T63 (toxic effect of contact with venomous animals and plants), T63.0 is specifically for toxic effect of snake venom. Related codes cover venom of other reptiles (T63.1), venom of scorpion (T63.2), venom of spider (T63.3), venom of other arthropods (T63.4), contact with venomous fish (T63.5), contact with other venomous marine animals (T63.6), contact with venomous plant (T63.7), contact with other venomous animals (T63.8) and 1 more.
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category T63
- T63.00Toxic effect of unspecified snake venom
- T63.01Toxic effect of rattlesnake venom
- T63.02Toxic effect of coral snake venom
- T63.03Toxic effect of taipan venom
- T63.04Toxic effect of cobra venom
- T63.06Toxic effect of venom of other North and South American snake
- T63.061Toxic effect of venom of other North and South American snake, accidental (unintentional)
- T63.062Toxic effect of venom of other North and South American snake, intentional self-harm
- T63.063Toxic effect of venom of other North and South American snake, assault
- T63.064Toxic effect of venom of other North and South American snake, undetermined
- T63.07Toxic effect of venom of other Australian snake
- T63.08Toxic effect of venom of other African and Asian snake
- T63.081Toxic effect of venom of other African and Asian snake, accidental (unintentional)
- T63.082Toxic effect of venom of other African and Asian snake, intentional self-harm
- T63.083Toxic effect of venom of other African and Asian snake, assault
- T63.084Toxic effect of venom of other African and Asian snake, undetermined
- T63.09Toxic effect of venom of other snake
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Notes that apply from higher levels
Instructions written at a parent level also apply to T63.0.
Codes whose notes reference T63.0
- W59Excludes1
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about T63.0
Is T63.0 billable?
- No. T63.0 is a header code. Report one of its more specific subcodes instead.