T63.631S — Toxic effect of contact with sea anemone, accidental (unintentional), sequela
Is T63.631S billable?
Yes — T63.631S is billable for FY2027. T63.631S is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. T63.631S may be submitted for encounters from October 1, 2026 through September 30, 2027.
T63.631S at a glance
| Code | T63.631S |
|---|---|
| Description | Toxic effect of contact with sea anemone, accidental (unintentional), 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 T63.631S?
In T63.631S, the 7th character S means sequela. The 7th character is required for T63.631S to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T63.631S group to?
T63.631S 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 T63.631S 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 T63.6
The conditions below can never be reported together with T63.631S on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- sea-snake venom (T63.09)
Use additional code — inherited from Chapter 19
Report an additional code alongside T63.631S to fully describe the condition. T63.631S 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 T63.631S to fully describe the condition. T63.631S is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T63.631S, but a patient may have both at the same time. When documentation supports it, T63.631S and the excluded code may both be reported.
Excludes2 — not included here — inherited from T63
The conditions below are not part of T63.631S, but a patient may have both at the same time. When documentation supports it, T63.631S and the excluded code may both be reported.
Excludes2 — not included here — inherited from T63.6
The conditions below are not part of T63.631S, but a patient may have both at the same time. When documentation supports it, T63.631S and the excluded code may both be reported.
- poisoning by ingestion of shellfish (T61.78-)
How long has T63.631S existed?
T63.631S 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.