T62.91XS — Toxic effect of unspecified noxious substance eaten as food, accidental (unintentional), sequela
Is T62.91XS billable?
Yes, but T62.91XS is an unspecified code. T62.91XS is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T62.91XS is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting T62.91XS — the more specific alternatives are listed below.
T62.91XS at a glance
| Code | T62.91XS |
|---|---|
| Description | Toxic effect of unspecified noxious substance eaten as food, 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 T62.91XS?
In T62.91XS, the 7th character S means sequela. The 7th character is required for T62.91XS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T62.91XS group to?
T62.91XS 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
How is T62.91XS listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T62.9, the nearest indexed parent of T62.91XS. Use them to find the family, then select the specific code.
- Poisoning › food NEC › noxious or naturally toxic (acute)
Inclusion terms
Alternative wording in documentation that is classified to T62.91XS.
- Toxic effect of unspecified noxious substance eaten as food NOS
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T62.91XS 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 T62
The conditions below can never be reported together with T62.91XS 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 shock (reaction) due to adverse food reaction (T78.0-)
- bacterial food borne 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 hydrogen cyanide (T57.3-)
- toxic effect of mercury (T56.1-)
Use additional code — inherited from Chapter 19
Report an additional code alongside T62.91XS to fully describe the condition. T62.91XS 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 T62.91XS to fully describe the condition. T62.91XS is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T62.91XS, but a patient may have both at the same time. When documentation supports it, T62.91XS and the excluded code may both be reported.
How long has T62.91XS existed?
T62.91XS 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.