T67.5 — Heat exhaustion, unspecified
T67.5 is a non-billable header ICD-10-CM code for heat exhaustion, unspecified. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T67
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Heat prostration NOS
Excludes1 inherited from the categories above T67.5
These are not written on T67.5, but they bind it: a note on a category applies to every code beneath it. Billing T67.5 with anything listed here is a denial.
Excludes2 inherited from the categories above T67.5
Also inherited, and the opposite of Excludes1: these conditions are not part of T67.5, but a patient can have both, so you may code both.
Other codes that can never be billed with T67.5
These codes carry an Excludes1 note pointing at T67.5. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T67.5 alone.
- R53.8Other malaise and fatigue
Risk adjustment
T67.5 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How T67.5 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to T67.5.
- Exhaustion, exhaustive›heat
- Heat›exhaustion
Code history
T67.5 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead T67.5
3 child codes. Green means billable.
Related codes at this level
Codes that share T67. If T67.5 is not quite right, the correct code is usually one of these.
Questions about T67.5
- Is T67.5 a billable ICD-10-CM code?
- No. T67.5 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T67.5 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Other and unspecified effects of external causes (T66-T78).
- What cannot be coded together with T67.5?
- T67.5 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above T67.5 (T67) and apply to it just the same.