T39.1X4S
T39.1X4S — Poisoning by 4-Aminophenol derivatives, undetermined, sequela
Billable / specific codeICD-10-CMPOA exempt
T39.1X4S is a billable, specific ICD-10-CM code for poisoning by 4-aminophenol derivatives, undetermined, 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 T39
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
T39.1X4S 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.
Code history
T39.1X4S 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 T39.1X4. If T39.1X4S is not quite right, the correct code is usually one of these.
Questions about T39.1X4S
- Is T39.1X4S a billable ICD-10-CM code?
- Yes. T39.1X4S is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T39.1X4S 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).