T49.1 — Poisoning by, adverse effect of and underdosing of antipruritics
Is T49.1 billable?
No — T49.1 is a non-billable header code. T49.1 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 18 billable codes beneath T49.1.
Billable codes under this header
- T49.1X1APoisoning by antipruritics, accidental (unintentional), initial encounter
- T49.1X1DPoisoning by antipruritics, accidental (unintentional), subsequent encounter
- T49.1X1SPoisoning by antipruritics, accidental (unintentional), sequela
- T49.1X2APoisoning by antipruritics, intentional self-harm, initial encounter
- T49.1X2DPoisoning by antipruritics, intentional self-harm, subsequent encounter
- T49.1X2SPoisoning by antipruritics, intentional self-harm, sequela
- T49.1X3APoisoning by antipruritics, assault, initial encounter
- T49.1X3DPoisoning by antipruritics, assault, subsequent encounter
- T49.1X3SPoisoning by antipruritics, assault, sequela
- T49.1X4APoisoning by antipruritics, undetermined, initial encounter
- T49.1X4DPoisoning by antipruritics, undetermined, subsequent encounter
- T49.1X4SPoisoning by antipruritics, undetermined, sequela
- T49.1X5AAdverse effect of antipruritics, initial encounter
- T49.1X5DAdverse effect of antipruritics, subsequent encounter
- T49.1X5SAdverse effect of antipruritics, sequela
- T49.1X6AUnderdosing of antipruritics, initial encounter
- T49.1X6DUnderdosing of antipruritics, subsequent encounter
- T49.1X6SUnderdosing of antipruritics, sequela
T49.1 at a glance
| Code | T49.1 |
|---|---|
| Description | Poisoning by, adverse effect of and underdosing of antipruritics |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T49.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- toxic reaction to local anesthesia in pregnancy (O29.3-)
Code first — inherited from T36-T50
The underlying condition below must be sequenced before T49.1. T49.1 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T49.1 to fully describe the condition. T49.1 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T36-T50
Report an additional code alongside T49.1 to fully describe the condition. T49.1 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T49.1, but a patient may have both at the same time. When documentation supports it, T49.1 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T49.1, but a patient may have both at the same time. When documentation supports it, T49.1 and the excluded code may both be reported.
What codes fall under T49.1? (1)
How long has T49.1 existed?
T49.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the T49 family? (9)
- T49.0Poisoning by, adverse effect of and underdosing of local antifungal, anti-infective and anti-inflammatory drugsnot billable
- T49.2Poisoning by, adverse effect of and underdosing of local astringents and local detergentsnot billable
- T49.3Poisoning by, adverse effect of and underdosing of emollients, demulcents and protectantsnot billable
- T49.4Poisoning by, adverse effect of and underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparationsnot billable
- T49.5Poisoning by, adverse effect of and underdosing of ophthalmological drugs and preparationsnot billable
- T49.6Poisoning by, adverse effect of and underdosing of otorhinolaryngological drugs and preparationsnot billable
- T49.7Poisoning by, adverse effect of and underdosing of dental drugs, topically appliednot billable
- T49.8Poisoning by, adverse effect of and underdosing of other topical agentsnot billable
- T49.9Poisoning by, adverse effect of and underdosing of unspecified topical agentnot billable