W88 — Exposure to ionizing radiation
Is W88 billable?
No — W88 is a non-billable header code. W88 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 9 billable codes beneath W88.
Billable codes under this header
- W88.0XXAExposure to X-rays, initial encounter
- W88.0XXDExposure to X-rays, subsequent encounter
- W88.0XXSExposure to X-rays, sequela
- W88.1XXAExposure to radioactive isotopes, initial encounter
- W88.1XXDExposure to radioactive isotopes, subsequent encounter
- W88.1XXSExposure to radioactive isotopes, sequela
- W88.8XXAExposure to other ionizing radiation, initial encounter
- W88.8XXDExposure to other ionizing radiation, subsequent encounter
- W88.8XXSExposure to other ionizing radiation, sequela
W88 at a glance
| Code | W88 |
|---|---|
| Description | Exposure to ionizing radiation |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with W88 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- exposure to sunlight (X32)
Excludes1 — never code together — inherited from W85-W99
The conditions below can never be reported together with W88 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 W88? (3)
How long has W88 existed?
W88 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.