X30 — Exposure to excessive natural heat
Is X30 billable?
No — X30 is a non-billable header code. X30 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 X30.
X30 at a glance
| Code | X30 |
|---|---|
| Description | Exposure to excessive natural heat |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is X30 listed in the External Cause Index?
These are the routes through the External Cause of Injuries Index that lead to X30 — how the injury happened, rather than what the injury was.
- Heat (effects of) (excessive)
- Insolation, effects
- Effectof › insolation (s) (adverse)
- Forces of nature › heat
- Hot › weather, effects
- Ictus › solaris
- Overexposure › heat (accidental) (to)
- Exposure › excessive › heatNEC (to)
- Heat › due to › weather (effects of) (excessive)
Excludes1 — never code together
The conditions below can never be reported together with X30 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Inclusion terms
Alternative wording in documentation that is classified to X30.
- Exposure to excessive heat as the cause of sunstroke
- Exposure to heat NOS
What codes fall under X30? (3)
How long has X30 existed?
X30 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.