X30.XXXA — Exposure to excessive natural heat, initial encounter
Is X30.XXXA billable?
Yes — X30.XXXA is billable for FY2027. X30.XXXA is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. X30.XXXA may be submitted for encounters from October 1, 2026 through September 30, 2027.
X30.XXXA at a glance
| Code | X30.XXXA |
|---|---|
| Description | Exposure to excessive natural heat, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is X30.XXXA listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under X30, the nearest indexed parent of X30.XXXA. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- 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)
Excludes1 — never code together
The conditions below can never be reported together with X30.XXXA 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.XXXA.
- Exposure to excessive heat as the cause of sunstroke
- Exposure to heat NOS
Excludes1 — never code together — inherited from X30
The conditions below can never be reported together with X30.XXXA on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
How long has X30.XXXA existed?
X30.XXXA 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.