ICD-10-CM 2027 diagnosis code
T39.31Poisoning by, adverse effect of and underdosing of propionic acid derivatives
T39.31 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it and add the required 7th character.Short description: Propionic acid derivatives
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About T39.31
T39.31 is the ICD-10-CM diagnosis code for poisoning by, adverse effect of and underdosing of propionic acid derivatives. It belongs to category T39 (poisoning by, adverse effect of and underdosing of nonopioid analgesics, antipyretics and antirheumatics), block T36-T50 (poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.
Within T39.3 (poisoning by, adverse effect of and underdosing of other nonsteroidal anti-inflammatory drugs [NSAID]), T39.31 is specifically for poisoning by, adverse effect of and underdosing of propionic acid derivatives. Related codes cover other nonsteroidal anti-inflammatory drugs [NSAID] (T39.39).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category T39
- T39.311Poisoning by propionic acid derivatives, accidental (unintentional)
- T39.312Poisoning by propionic acid derivatives, intentional self-harm
- T39.313Poisoning by propionic acid derivatives, assault
- T39.314Poisoning by propionic acid derivatives, undetermined
- T39.315Adverse effect of propionic acid derivatives
- T39.316Underdosing of propionic acid derivatives
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Coding notes
- Poisoning by, adverse effect of and underdosing of fenoprofen
- Poisoning by, adverse effect of and underdosing of flurbiprofen
- Poisoning by, adverse effect of and underdosing of ibuprofen
- Poisoning by, adverse effect of and underdosing of ketoprofen
- Poisoning by, adverse effect of and underdosing of naproxen
- Poisoning by, adverse effect of and underdosing of oxaprozin
Notes that apply from higher levels
Instructions written at a parent level also apply to T39.31.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about T39.31
Is T39.31 billable?
- No. T39.31 is a header code. Report one of its more specific subcodes instead.