T43.644 — Poisoning by ecstasy, undetermined
Is T43.644 billable?
No — T43.644 is a non-billable header code. T43.644 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 T43.644.
T43.644 at a glance
| Code | T43.644 |
|---|---|
| Description | Poisoning by ecstasy, undetermined |
| 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 T43.644 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-)
Excludes1 — never code together — inherited from T43.6
The conditions below can never be reported together with T43.644 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- poisoning by, adverse effect of and underdosing of cocaine (T40.5-)
Code first — inherited from T36-T50
The underlying condition below must be sequenced before T43.644. T43.644 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T43.644 to fully describe the condition. T43.644 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 T43.644 to fully describe the condition. T43.644 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T43.644, but a patient may have both at the same time. When documentation supports it, T43.644 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T43.644, but a patient may have both at the same time. When documentation supports it, T43.644 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T43
The conditions below are not part of T43.644, but a patient may have both at the same time. When documentation supports it, T43.644 and the excluded code may both be reported.
What codes fall under T43.644? (3)
How long has T43.644 existed?
T43.644 first appears in FY2019.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.