T43.642

Poisoning by ecstasy, intentional self-harm

Not billable — category only FY2026 2025-10-01 → 2026-09-30

Exclusions 9 never code together

T43code

Excludes1

appetite depressants (T50.5-)T50.5-
barbiturates (T42.3-)T42.3-
benzodiazepines (T42.4-)T42.4-
methaqualone (T42.6-)T42.6-
psychodysleptics [hallucinogens] (T40.7-T40.9-)T40.7-T40.9

Excludes2

drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.- -F19.-)F10.-F19.-

T43.6code

Excludes1

poisoning by, adverse effect of and underdosing of cocaine (T40.5-)T40.5-

S00-T88chapter

Excludes2

birth trauma (P10-P15)P10-P15
obstetric trauma (O70-O71)O70-O71

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

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 3

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 T43.6

The index files this at T43.6. The tabular extends it — laterality, staging, or the 7th character — so these entries lead to the family rather than to T43.642 exactly.

Noncompliance Z91.199
- with
  - medication regimen NEC Z91.148
    - underdosing Z91.148
Underdosing Z91.14

Alongside this code 3 same parent — T43.64

T43.641 Poisoning by ecstasy, accidental (unintentional) category T43.643 Poisoning by ecstasy, assault category T43.644 Poisoning by ecstasy, undetermined category

Subordinate codes 3

T43.642A Poisoning by ecstasy, self-harm, initial encounter T43.642D Poisoning by ecstasy, self-harm, subsequent encounter T43.642S Poisoning by ecstasy, intentional self-harm, 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: T43.64
Block: T07-T88
Siblings: 3
Subordinate: 3

Present FY2024–FY2027.