T61.781 — Other shellfish poisoning, accidental (unintentional)
Is T61.781 billable?
No — T61.781 is a non-billable header code. T61.781 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 T61.781.
T61.781 at a glance
| Code | T61.781 |
|---|---|
| Description | Other shellfish poisoning, accidental (unintentional) |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is T61.781 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T61.78, the nearest indexed parent of T61.781. Use them to find the family, then select the specific code.
- Poisoning › shellfish (acute)
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T61.781 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.-)
Excludes1 — never code together — inherited from T61
The conditions below can never be reported together with T61.781 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- allergic reaction to food, such as:
- anaphylactic reaction or shock due to adverse food reaction (T78.0-)
- bacterial foodborne intoxications (A05.-)
- dermatitis (L23.6, L25.4, L27.2)
- food protein-induced enterocolitis syndrome (K52.21)
- food protein-induced enteropathy (K52.22)
- gastroenteritis (noninfective) (K52.29)
- toxic effect of aflatoxin and other mycotoxins (T64)
- toxic effect of cyanides (T65.0-)
- toxic effect of harmful algae bloom (T65.82-)
- toxic effect of hydrogen cyanide (T57.3-)
- toxic effect of mercury (T56.1-)
- toxic effect of red tide (T65.82-)
Use additional code — inherited from Chapter 19
Report an additional code alongside T61.781 to fully describe the condition. T61.781 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 T61.781 to fully describe the condition. T61.781 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T61.781, but a patient may have both at the same time. When documentation supports it, T61.781 and the excluded code may both be reported.
What codes fall under T61.781? (3)
How long has T61.781 existed?
T61.781 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.