T54.3X4S
T54.3X4S: Toxic effect of corrosive alkalis and alkali-like substances, undetermined, sequela
Billable / specific codeICD-10-CMPOA exempt
T54.3X4S is a billable, specific ICD-10-CM code for toxic effect of corrosive alkalis and alkali-like substances, undetermined, sequela. It is valid for submission on a claim.
Check T54.3X4S with the rest of the claim: free scrubber7th character "S": sequela
The appropriate 7th character is to be added to each code from category T54
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
T54.3X4S is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
- A56612Billing and Coding: CT of the Head
- A57063Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy
- A57414Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)
Code history
Unchanged in every release from FY2024 to FY2027.