T63.31 — Toxic effect of venom of black widow spider
Is T63.31 billable?
No — T63.31 is a non-billable header code. T63.31 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 12 billable codes beneath T63.31.
Billable codes under this header
- T63.311AToxic effect of venom of black widow spider, accidental (unintentional), initial encounter
- T63.311DToxic effect of venom of black widow spider, accidental (unintentional), subsequent encounter
- T63.311SToxic effect of venom of black widow spider, accidental (unintentional), sequela
- T63.312AToxic effect of venom of black widow spider, intentional self-harm, initial encounter
- T63.312DToxic effect of venom of black widow spider, intentional self-harm, subsequent encounter
- T63.312SToxic effect of venom of black widow spider, intentional self-harm, sequela
- T63.313AToxic effect of venom of black widow spider, assault, initial encounter
- T63.313DToxic effect of venom of black widow spider, assault, subsequent encounter
- T63.313SToxic effect of venom of black widow spider, assault, sequela
- T63.314AToxic effect of venom of black widow spider, undetermined, initial encounter
- T63.314DToxic effect of venom of black widow spider, undetermined, subsequent encounter
- T63.314SToxic effect of venom of black widow spider, undetermined, sequela
T63.31 at a glance
| Code | T63.31 |
|---|---|
| Description | Toxic effect of venom of black widow spider |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from T51-T65
The conditions below can never be reported together with T63.31 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 T63.31 to fully describe the condition. T63.31 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 T63.31 to fully describe the condition. T63.31 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T63.31, but a patient may have both at the same time. When documentation supports it, T63.31 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T63
The conditions below are not part of T63.31, but a patient may have both at the same time. When documentation supports it, T63.31 and the excluded code may both be reported.
What codes fall under T63.31? (4)
- T63.311Toxic effect of venom of black widow spider, accidental (unintentional)not billable
- T63.312Toxic effect of venom of black widow spider, intentional self-harmnot billable
- T63.313Toxic effect of venom of black widow spider, assaultnot billable
- T63.314Toxic effect of venom of black widow spider, undeterminednot billable
How long has T63.31 existed?
T63.31 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.