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T49.6X4

Poisoning by otorhinolaryngological drugs and preparations, undetermined

Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 2 never code together
S00-T88chapter
Excludes2

Excludes2 — not included here, but the patient may have both. Code both when documented.

7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 4
T49code
Includes
  • poisoning by, adverse effect of and underdosing of glucocorticoids, topically used
S00-T88chapter
Notes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
  • code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 2 filed at T49.6

The index files this at T49.6. The tabular extends it — laterality, staging, or the 7th character — so these entries lead to the family rather than to T49.6X4 exactly.

Alongside this code 5 same parent — T49.6X
T49.6X1 Poisoning by otorhino drugs and preparations, accidental category T49.6X2 Poisoning by otorhino drugs and preparations, self-harm category T49.6X3 Poisoning by otorhino drugs and preparations, assault category T49.6X5 Adverse effect of otorhino drugs and preparations category T49.6X6 Underdosing of otorhinolaryngological drugs and preparations category
Subordinate codes 3
T49.6X4A Poisoning by otorhino drugs and prep, undetermined, init T49.6X4D Poisoning by otorhino drugs and prep, undetermined, subs T49.6X4S Poisoning by otorhino drugs and prep, undetermined, sequela
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
no
Code set
FY2026
Parent
T49.6X
Block
T07-T88
Siblings
5
Subordinate
3

Present FY2024–FY2027.