W90 — Exposure to other nonionizing radiation
Is W90 billable?
No — W90 is a non-billable header code. W90 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 W90.
Billable codes under this header
- W90.0XXAExposure to radiofrequency, initial encounter
- W90.0XXDExposure to radiofrequency, subsequent encounter
- W90.0XXSExposure to radiofrequency, sequela
- W90.1XXAExposure to infrared radiation, initial encounter
- W90.1XXDExposure to infrared radiation, subsequent encounter
- W90.1XXSExposure to infrared radiation, sequela
- W90.2XXAExposure to laser radiation, initial encounter
- W90.2XXDExposure to laser radiation, subsequent encounter
- W90.2XXSExposure to laser radiation, sequela
- W90.8XXAExposure to other nonionizing radiation, initial encounter
- W90.8XXDExposure to other nonionizing radiation, subsequent encounter
- W90.8XXSExposure to other nonionizing radiation, sequela
W90 at a glance
| Code | W90 |
|---|---|
| Description | Exposure to other nonionizing radiation |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes2 — not included here
The conditions below are not part of W90, but a patient may have both at the same time. When documentation supports it, W90 and the excluded code may both be reported.
- exposure to sunlight (X32)
Excludes1 — never code together — inherited from W85-W99
The conditions below can never be reported together with W90 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
What codes fall under W90? (4)
How long has W90 existed?
W90 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.