T49.92XA — Poisoning by unspecified topical agent, intentional self-harm, initial encounter
T49.92XA is a billable, specific ICD-10-CM code for poisoning by unspecified topical agent, intentional self-harm, initial encounter. It is valid for submission on a claim.
7th character "A" — initial encounter
The appropriate 7th character is to be added to each code from category T49
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Other codes that can never be billed with T49.92XA
These codes carry an Excludes1 note pointing at T49.92XA. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T49.92XA alone.
- T38.0Poisoning by, adverse effect of and underdosing of glucocorticoids and synthetic analogues
Risk adjustment
T49.92XA risk-adjusts. Under the CMS-HCC V28 model it maps to these categories:
- HCC 155 Major Depression, Moderate or Severe, without Psychosis0.299 RAF
- HCC 155 Major Depression, Moderate or Severe, without Psychosis0.299 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
T49.92XA is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56612Billing and Coding: CT of the Head
- A57205Billing and Coding: Oximetry Services
Code history
T49.92XA has not changed since FY2024 — no addition, revision or deletion across the FY2024–FY2027 ICD-10-CM releases.
Related codes at this level
Codes that share T49.92. If T49.92XA is not quite right, the correct code is usually one of these.
Questions about T49.92XA
- Is T49.92XA a billable ICD-10-CM code?
- Yes. T49.92XA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T49.92XA sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).