ICD-10 T63
Non-Billable HeaderToxic effect of contact with venomous animals and plants
About ICD-10-CM T63
ICD-10-CM code T63 represents Toxic effect of contact with venomous animals and plants. This is a non-billable header code in the Injury, Poisoning, and External Causes chapter (block T63). The 2026 edition of ICD-10-CM T63 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Coding Tips for T63
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
Injury codes require a 7th character: A (initial encounter, active treatment), D (subsequent, healing/recovery), S (sequela, late effect of original injury). Codes with fewer than 6 characters need the placeholder X to bring them to 6 characters before adding the 7th. Wrong or missing 7th character is the #1 cause of injury claim denials.
Type 2 Excludes
Not included here, the excluded code is not part of T63, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- ingestion of toxic animal or plant (T61.-, T62.-)
Includes
- bite or touch of venomous animal
- pricked or stuck by thorn or leaf
Coding Notes
Seven Chr Note
- The appropriate 7th character is to be added to each code from category T63
Medicare LCD Coverage for T63
Local Coverage Determinations (LCDs) from CMS MACs that list T63 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing T63.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but T63 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with T63
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To T63
Other codes in section T51-T65 (Toxic effects of substances chiefly nonmedicinal as to source).
ICD-10 T63, Billing FAQ
Is ICD-10 code T63 billable? +
No, T63 is a non-billable header code. Use a more specific child code from block T63 when submitting claims.
What codes are Type 2 Excludes for T63? +
Type 2 Excludes (may be coded together when both conditions exist): ingestion of toxic animal or plant (T61.-, T62.-)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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