T73.2XXD — Exhaustion due to exposure, subsequent encounter
Is T73.2XXD billable?
Yes — T73.2XXD is billable for FY2027. T73.2XXD is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. T73.2XXD may be submitted for encounters from October 1, 2026 through September 30, 2027.
T73.2XXD at a glance
| Code | T73.2XXD |
|---|---|
| Description | Exhaustion due to exposure, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in T73.2XXD?
In T73.2XXD, the 7th character D means subsequent encounter. The 7th character is required for T73.2XXD to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T73.2XXD group to?
T73.2XXD sits in MDC 23 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 949Aftercare with CC/MCCmedical
- 950Aftercare without CC/MCCmedical
How is T73.2XXD listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T73.2, the nearest indexed parent of T73.2XXD. Use them to find the family, then select the specific code.
- Exposure › exhaustion due to (to)
- Overexposure › exhaustion (effects)
- Exhaustion, exhaustive › due to › exposure (physical NEC)
Use additional code — inherited from Chapter 19
Report an additional code alongside T73.2XXD to fully describe the condition. T73.2XXD is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T73.2XXD, but a patient may have both at the same time. When documentation supports it, T73.2XXD and the excluded code may both be reported.
Code also — inherited from T66-T78
Two codes may be needed to describe the condition fully. Whether T73.2XXD is sequenced first depends on the reason for the encounter.
- , if applicable, place of occurrence, such as:
- highway rest stop (Y92.523)
- school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
- service areas as the place of occurrence of the external cause (Y92.52-)
- single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
- transport vehicle as the place of occurrence of the external cause (Y92.81-)
How long has T73.2XXD existed?
T73.2XXD 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.