T49.4X5 — Adverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations
Is T49.4X5 billable?
No — T49.4X5 is a non-billable header code. T49.4X5 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 3 billable codes beneath T49.4X5.
Billable codes under this header
- T49.4X5AAdverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, initial encounter
- T49.4X5DAdverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, subsequent encounter
- T49.4X5SAdverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, sequela
T49.4X5 at a glance
| Code | T49.4X5 |
|---|---|
| Description | Adverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations |
| 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 T49.4X5 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 T49.4X5. T49.4X5 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T49.4X5 to fully describe the condition. T49.4X5 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 T49.4X5 to fully describe the condition. T49.4X5 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T49.4X5, but a patient may have both at the same time. When documentation supports it, T49.4X5 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T49.4X5, but a patient may have both at the same time. When documentation supports it, T49.4X5 and the excluded code may both be reported.
What codes fall under T49.4X5? (3)
- T49.4X5AAdverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, initial encounter
- T49.4X5DAdverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, subsequent encounter
- T49.4X5SAdverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, sequela
How long has T49.4X5 existed?
T49.4X5 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 T49.4X family? (5)
- T49.4X1Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, accidental (unintentional)not billable
- T49.4X2Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, intentional self-harmnot billable
- T49.4X3Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assaultnot billable
- T49.4X4Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undeterminednot billable
- T49.4X6Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparationsnot billable