| Y37.540 | Military operation involving nuclear radiation effects of nuclear weapon, military personnel | NON-BILLABLE CODE |
| Y37.540A | Military operation involving nuclear radiation effects of nuclear weapon, military personnel, initial encounter | BILLABLE CODE |
| Y37.540D | Military operation involving nuclear radiation effects of nuclear weapon, military personnel, subsequent encounter | BILLABLE CODE |
| Y37.540S | Military operation involving nuclear radiation effects of nuclear weapon, military personnel, sequela | BILLABLE CODE |
| Y37.541 | Military operation involving nuclear radiation effects of nuclear weapon, civilian | NON-BILLABLE CODE |
| Y37.541A | Military operation involving nuclear radiation effects of nuclear weapon, civilian, initial encounter | BILLABLE CODE |
| Y37.541D | Military operation involving nuclear radiation effects of nuclear weapon, civilian, subsequent encounter | BILLABLE CODE |
| Y37.541S | Military operation involving nuclear radiation effects of nuclear weapon, civilian, sequela | BILLABLE CODE |
