T39.1X6 — Underdosing of 4-Aminophenol derivatives
Is T39.1X6 billable?
No — T39.1X6 is a non-billable header code. T39.1X6 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 T39.1X6.
T39.1X6 at a glance
| Code | T39.1X6 |
|---|---|
| Description | Underdosing of 4-Aminophenol derivatives |
| 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 T39.1X6 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 T39.1X6. T39.1X6 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T39.1X6 to fully describe the condition. T39.1X6 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 T39.1X6 to fully describe the condition. T39.1X6 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T39.1X6, but a patient may have both at the same time. When documentation supports it, T39.1X6 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T39.1X6, but a patient may have both at the same time. When documentation supports it, T39.1X6 and the excluded code may both be reported.
What codes fall under T39.1X6? (3)
How long has T39.1X6 existed?
T39.1X6 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 T39.1X family? (5)
- T39.1X1Poisoning by 4-Aminophenol derivatives, accidental (unintentional)not billable
- T39.1X2Poisoning by 4-Aminophenol derivatives, intentional self-harmnot billable
- T39.1X3Poisoning by 4-Aminophenol derivatives, assaultnot billable
- T39.1X4Poisoning by 4-Aminophenol derivatives, undeterminednot billable
- T39.1X5Adverse effect of 4-Aminophenol derivativesnot billable