T54.3X1S — Toxic effect of corrosive alkalis and alkali-like substances, accidental (unintentional), sequela
T54.3X1S is a billable, specific ICD-10-CM code for toxic effect of corrosive alkalis and alkali-like substances, accidental (unintentional), sequela. It is valid for submission on a claim.
7th 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
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Toxic effects of corrosive alkalis and alkali-like substances NOS
Risk adjustment
T54.3X1S does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
T54.3X1S is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- 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)
Related codes at this level
Codes that share T54.3X1. If T54.3X1S is not quite right, the correct code is usually one of these.
Questions about T54.3X1S
- Is T54.3X1S a billable ICD-10-CM code?
- Yes. T54.3X1S is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T54.3X1S sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Toxic effects of substances chiefly nonmedicinal as to source (T51-T65).