Category T66
Non-Billable Category
FY2027 Dataset
T66: Radiation sickness, unspecified
Parent Chapter: Chapter 19: Injury, poisoning and certain other consequences of external causes
Notice on Coding Specificity: Category T66 is a 3-character heading and cannot be reported directly on healthcare claims. You must assign one of the specific child codes listed below.
Specific Child Codes in Category T66
| Code | Official Descriptor | Status | Action |
|---|---|---|---|
| T66.XXXA | Radiation sickness, unspecified, initial encounter | Billable Code | View Code |
| T66.XXXD | Radiation sickness, unspecified, subsequent encounter | Billable Code | View Code |
| T66.XXXS | Radiation sickness, unspecified, sequela | Billable Code | View Code |
| T66 | Radiation sickness, unspecified | Non-Billable | View Code |