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T63.811A

T63.811A: Toxic effect of contact with venomous frog, accidental (unintentional), initial encounter

Billable / specific codeICD-10-CM

T63.811A is a billable, specific ICD-10-CM code for toxic effect of contact with venomous frog, accidental (unintentional), initial encounter. It is valid for submission on a claim.

Check T63.811A with the rest of the claim: free scrubber

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

Excludes1 inherited from the categories above T63.811A

A category’s note binds every code beneath it.

Written on T63.81: Toxic effect of contact with venomous frog

  • contact with nonvenomous frog (W62.0)

Excludes2 inherited from the categories above T63.811A

Not part of this code, but both may be coded when both are present.

Written on T63: Toxic effect of contact with venomous animals and plants

  • ingestion of toxic animal or plant (T61.-, T62.-)

Other codes that can never be billed with T63.811A

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • W64Exposure to other animate mechanical forces
  • W64.XXXAExposure to other animate mechanical forces, initial encounter
  • W64.XXXDExposure to other animate mechanical forces, subsequent encounter
  • W64.XXXSExposure to other animate mechanical forces, sequela
  • W56Contact with nonvenomous marine animal

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

T63.811A is named in 5 Medicare coverage policies: 5 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56612Billing and Coding: CT of the Head
  • A56844Billing and Coding: RAST Type Tests
  • A57043Billing and Coding: RAST Type Tests
  • A57205Billing and Coding: Oximetry Services

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under T63.811

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.