T61.8X2S — Toxic effect of other seafood, intentional self-harm, sequela
Is T61.8X2S billable?
Yes — T61.8X2S is billable for FY2027. T61.8X2S is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. T61.8X2S may be submitted for encounters from October 1, 2026 through September 30, 2027.
T61.8X2S at a glance
| Code | T61.8X2S |
|---|---|
| Description | Toxic effect of other seafood, intentional self-harm, sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in T61.8X2S?
In T61.8X2S, the 7th character S means sequela. The 7th character is required for T61.8X2S to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T61.8X2S group to?
T61.8X2S sits in MDC 21 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 922Other Injury, Poisoning and Toxic Effect Diagnoses with MCCmedical
- 923Other Injury, Poisoning and Toxic Effect Diagnoses without MCCmedical
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T61.8X2S 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 T61.8X2S 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 T61.8X2S to fully describe the condition. T61.8X2S 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 T61.8X2S to fully describe the condition. T61.8X2S is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T61.8X2S, but a patient may have both at the same time. When documentation supports it, T61.8X2S and the excluded code may both be reported.
How long has T61.8X2S existed?
T61.8X2S 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.