T65.822 — Toxic effect of harmful algae and algae toxins, intentional self-harm
Is T65.822 billable?
No — T65.822 is a non-billable header code. T65.822 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 T65.822.
Billable codes under this header
T65.822 at a glance
| Code | T65.822 |
|---|---|
| Description | Toxic effect of harmful algae and algae toxins, intentional self-harm |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is T65.822 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T65.82, the nearest indexed parent of T65.822. Use them to find the family, then select the specific code.
- Red tide
- Poisoning › algae and toxins (acute)
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T65.822 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- contact with and (suspected) exposure to toxic substances (Z77.-)
Use additional code — inherited from Chapter 19
Report an additional code alongside T65.822 to fully describe the condition. T65.822 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T51-T65
Report an additional code alongside T65.822 to fully describe the condition. T65.822 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T65.822, but a patient may have both at the same time. When documentation supports it, T65.822 and the excluded code may both be reported.
What codes fall under T65.822? (3)
How long has T65.822 existed?
T65.822 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.